RESUMO
OBJECTIVE: To compare the differences in estimated food, energy, and nutrient intakes between the consecutive 3 days 24-hour dietary recall(24HR)(referred to as the 3-day method) and consecutive 2 days 24HR(referred to as the 2-day method) to provide a basis for the use of consecutive 2 days 24HR in China nutrition surveillance. METHODS: Using objective sampling to select participants in northern and southern provinces, dietary data were obtained through consecutive 3 days 24HR, and the average intakes of food, energy and nutrients were calculated for three days from Thursday to Saturday and two days on Friday and Saturday, respectively. The 3-day method was considered as the reference standard method to evaluate the performance of the 2-day method for estimating food, energy and nutrient intakes. RESULTS: Among 778 participants aged 18-60 years in urban and rural areas of two provinces, the errors of the mean and median of 2-day method for estimating the intake of four major food categories less than 6% compared with the 3-day method, and there were significant equivalencies(P<0.025) and no significant differences in four major food categories group(P>0.05). Of the 24 food groups estimated by the 2-day method, 17 had mean errors within 5%, the largest error was in animal offal(13.45%) and the smallest in fruit(0.15%), and there were significant equivalencies(P<0.025) and no significant differences in seven food groups(P>0.05). For energy and nutrients, the mean and median errors of energy were less than 0.5% and there were significant equivalencies(P<0.025) and no significant differences for energy(P>0.05). Among the 25 nutrients, except sodium, iodine and vitamin E, the mean and median errors of the other 22 nutrients were less than 5%, and there were significant equivalencies(P<0.025) and no significant differences in 16 nutrients(P>0.05). CONCLUSION: There was little difference between the two survey method in assessing the intake of high consumption frequency foods, energy and most nutrients at group level, the 2-day method can be used as an alternative to the 3-day method to collect dietary intake data with high consumption rates in the population.
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Ingestão de Energia , Rememoração Mental , Nutrientes , Humanos , Adulto , Pessoa de Meia-Idade , Feminino , Masculino , Adolescente , Adulto Jovem , China , Nutrientes/análise , Inquéritos sobre Dietas/métodos , Dieta/estatística & dados numéricos , Registros de DietaRESUMO
Half of Chinese adults face the double burden of overweight/obesity and micronutrient deficiencies, and nearly 40% of them are severely overweight/obese or have micronutrient deficiencies. This study used the data from China Nutrition and Health Survey (CNHS) from 2015 to 2017 to estimate the prevalence of inadequate dietary micronutrient intake (including vitamin A, vitamin B1, vitamin B2, vitamin C, cCalcium, iron and sodium) in Chinese adults and further determine the differences in micronutrient intake by gender, age and BMI. A total of 61,768 subjects were included in this study, of which 33,262 (54%) were female. The intake of energy and all macronutrients decreased with age, and the intake was higher in men than in women. Inadequate energy intake occurs in adults of all ages. In terms of nutrient intake, women had a higher rate of insufficient carbohydrate intake than men in all age groups. Inadequate protein intake was more common in women aged 18-49 years (60.9%) than in men. Compared with women, men had a higher rate of vitamin B2 intake. Insufficient vitamin B3 intake was more common in women aged 18-49 years (35.6%), men aged 65-79 years (39.7%) and men aged 80 years and above (47.9%). In all age groups, insufficient vitamin C intake is higher in women than in men-up to 85.8 percent in women aged 80 years old and above. Compared with men in the same age group, insufficient intake of calcium and iron is more obvious in women. Women have significantly higher rates of inadequate intake of calcium, iron and sodium than men. In the analysis of correlations between BMI or demographic data and micronutrient intakes, the likelihood of micronutrient intakes being insufficient was higher in the central and western regions in all age groups compared to the eastern regions. The risk of insufficient micronutrient intake was higher in obese men and women aged 18-49 years and 50-64 years. Underweight and overweight women in the 65-79 age group were more likely to have inadequate micronutrient intake. Obese women over 80 years of age were less likely to have inadequate micronutrient intake. No significant difference was found between urban and rural areas for each age group.
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Ingestão de Energia , Micronutrientes , Inquéritos Nutricionais , Humanos , Feminino , Masculino , Adulto , Pessoa de Meia-Idade , China/epidemiologia , Idoso , Adolescente , Adulto Jovem , Idoso de 80 Anos ou mais , Micronutrientes/deficiência , Micronutrientes/administração & dosagem , Fatores Sexuais , Estado Nutricional , Índice de Massa Corporal , Desnutrição/epidemiologia , Dieta/estatística & dados numéricos , Prevalência , Nutrientes , Fatores Etários , População do Leste AsiáticoRESUMO
BACKGROUND: The aim of the study was to investigate the relationship between sedentary behavior, screen time and MetS among Chinese children and adolescents aged 7-17 years. Data was obtained from the China National Nutrition and Health Surveillance of Children and Lactating Mothers in 2016-2017. METHODS: Data on sedentary time, screen time, and MetS indicators were obtained through physical and health questionnaires, anthropometric measurements, and clinical examinations. MetS was defined according to the Cook's criteria. Wilcoxon rank sum test and chi-square test were applied for comparisons of measurement data and counting data, respectively. The relationship between sedentary time, screen time, and MetS and its components was analyzed using a multivariate logistic regression model. RESULTS: The prevalence of MetS among 7-17-year-old students in 2016-2017 was 5.45%. Compared to those with low sedentary behavior, in high sedentary behavior groups, the prevalence of abdominal obesity, high TG, low HDL-C, and MetS was high in boys, and the prevalence of abdominal obesity, high TG, hyperglycemia, and MetS was high in girls. Moreover, for those who reported ≥ 3 h/day of screen time, the prevalence of abdominal obesity, low HDL-C, and MetS was higher in boys, and the prevalence of abdominal obesity and MetS was higher in girls. After adjusting for confounding variables, the risks of abdominal obesity, high TG, low HDL-C, and MetS were higher in high-level sedentary time group, and the risks of abdominal obesity and MetS were 1.15 and 1.14 times higher for those who spent ≥ 3 h/day on screen time, respectively. CONCLUSIONS: This study shows that high levels of sedentary time and screen time were associated with an increased likelihood of MetS among Chinese children and adolescents aged 7-17 years. Reducing sedentary behavior and screen time may contribute to the prevention of metabolic diseases.
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Síndrome Metabólica , Tempo de Tela , Comportamento Sedentário , Humanos , Adolescente , Feminino , Masculino , Síndrome Metabólica/epidemiologia , China/epidemiologia , Criança , Prevalência , Estudos Transversais , Fatores de Risco , População do Leste AsiáticoRESUMO
OBJECTIVE: Understand the current situation and changing trends of low body weight in elderly population aged 60 years and above. METHODS: Data was collected from 2002 Chinese Nutrition and Health Survey, 2010-2013 Chinese Nutrition and Health Surveillance and 2015 Chinese Adult Chronic Disease and Nutrition Surveillance. Multi-stage stratified cluster random sampling was used for all surveys or surveillance. In 2002, 27 778 samples of people aged 60 and over were taken from 132 monitoring sites in mainland China. In 2010-2013, 34 581 subjects were selected from 150 monitoring points in mainland China. In 2015, 59 576 subjects were selected from 302 monitoring points in mainland China. Questionnaires collected basic information such as gender, and date of birth, and information such as height and weight were collected through physical examination. RESULTS: The prevalence of low body weight in the elderly aged 60 years and above showed a downward trend from 2002 to 2015 in China(P<0.01). The prevalence of low body weight decreased from 11.67% in 2002 to 5.19% in 2015. The prevalence of low body weight among males decreased from 11.51% in 2002 to 5.21% in 2015. The prevalence of low body weight among females decreased from 11.83% in 2002 to 5.17% in 2015. The prevalence of low body weight in the elderly aged 60 years and above showed an upward trend with age. The prevalence of low body weight in urban areas decreased from 5.85% in 2002 to 3.31% in 2015. The prevalence of low body weight in rural areas decreased from 16.25% in 2002 to 6.67% in 2015. The prevalence of low body weight in seven geographic regions of China decreased from 2002 to 2015. The prevalence of low body weight was highest in the elderly population aged 60 years and above in South China(9.49%(95%CI 8.61%-10.38%)) and lowest in North China(2.55%(95%CI 2.15%-2.95%)) in 2015. CONCLUSION: The prevalence of low body weight among the elderly aged 60 years and above in China decreased from 2002 to 2015. The prevalence of low body weight increased with age. The prevalence was higher in rural areas than in urban areas, and the prevalence in South China was higher than in other geographic regions.
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Estado Nutricional , População Rural , Masculino , Adulto , Feminino , Humanos , Idoso , Pessoa de Meia-Idade , Prevalência , China/epidemiologia , Inquéritos e Questionários , Peso Corporal , População UrbanaRESUMO
Obesity is a major public health issue in children and adolescents. Our study aimed to examine the impacts of birth weight on overweight and obesity among Chinese children and adolescents. Using data from the China National Nutrition and Health Surveillance of Children and Lactating Mothers in 2016-2017, we included 10,041 participants aged 7-17 years. According to birth weight, participants were categorized into six groups, and the birth weight category of 3000 to 3499 g was chosen as the reference group, containing the largest number of children. Logistic regression analyses were used to investigate the association of birth weight with the risk of being obese at 7 to 17 years of age in multivariable-adjusted models. A restricted cubic spline was utilized to show the odds ratios (ORs) of obesity at different birth weight levels. The adjusted ORs for overweight were 0.98 (95%CI 0.63, 1.53), 1.02 (95%CI 0.84, 1.25), 1.34 (95%CI 1.16, 1.55), 1.72 (95%CI 1.35, 2.18), and 1.17 (95%CI 0.71, 1.96) in several birth weight groups, compared with group C (3000-3499 g). The adjusted ORs for obesity were 0.82 (95%CI 0.48, 1.40), 0.77 (95%CI 0.60, 0.98), 1.33 (95%CI 1.13, 1.57), 1.97 (95%CI 1.53, 2.53), and 2.01 (95%CI 1.27, 3.19). Furthermore, children in the post-pubertal stage had a slightly higher risk of overweight and obesity than those in the pre-pubertal and pubertal stage. Moreover, these associations were stronger among boys. The lower part of normal birth weight range is associated with a lower risk of overweight and obesity in children and adolescents. However, higher levels of birth weight increase risk.
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Sobrepeso , Obesidade Infantil , Masculino , Criança , Feminino , Humanos , Adolescente , Sobrepeso/epidemiologia , Obesidade Infantil/epidemiologia , Peso ao Nascer , Lactação , Índice de Massa Corporal , Fatores de Risco , China/epidemiologia , PrevalênciaRESUMO
OBJECTIVE: To analyze the intake of energy and macronutrients in the elderly aged 75 years and above in China. METHODS: The data was sourced from the China National Chronic Non-communicable Disease and Nutrition Surveillance, which adopted a multi-stage stratified clustered random sampling method and selected 298 monitoring points from 31 provinces across the country to carry out chronic non-communicable disease and nutrition surveillance of Chinese adults. The condiments weighting method and 3-day 24-hour dietary review method were used to collect dietary data for residents. Based on the dietary survey result of 3368 elderly people aged 75 years and above in the surveillance, the intake of energy and macro nutrients of elderly people was analyzed. RESULTS: Among the elderly aged 75 years and above included in the analysis, there were 1727 males and 1641 females, 1511 people in urban areas and 1857 people in rural areas, 1956 people aged 75-79, 1412 people aged ≥ 80. The average energy intake of the elderly aged 75 years and above in China was(1601.0±473.4)kcal, and the average intakes of carbohydrate, protein and fat were(219.6±76.6)g, (48.2±18.6)g and(60.2±31.5)g, respectively. The energy supply ratios of carbohydrate, protein and fat were 54.9%, 12.0% and 33.1% respectively. The carbohydrate intake and its energy supply ratio of the urban elderly((200.0±74.0)g and 51.8%) were significantly lower than those of the rural elderly((235.5±75.0) and 57.4%), while the protein intake and its energy supply ratio((50.2±18.9)g and 13.0%), fat intake and its energy supply ratio((61.2±30.2)g and 35.2%)of the urban elderly were significantly higher than those of the rural elderly((46.5±18.2)g and 11.2% for protein, and(59.4±32.5)g and 31.4% for fat). According to Chinese dietary reference intake standard, only 28.1% of the elderly aged 75 and above reached the recommended value of energy, 71.9% of the elderly did not take enough energy, the proportion of insufficient protein intake was 72.2%, 68.5% in urban areas and 75.2% in rural areas, the proportion of people with fat to energy ratio more than 30% was 58.5%, 65.3% in urban areas and 52.9% in rural areas. CONCLUSION: The energy intake of the elderly aged 75 years and above in China was insufficient, the protein intake was low, the fat to energy ratio was too high, and the dietary structure was unreasonable.
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Doenças não Transmissíveis , Adulto , Masculino , Idoso , Feminino , Humanos , Inquéritos Nutricionais , Dieta , Ingestão de Energia , Nutrientes , China , CarboidratosRESUMO
BACKGROUND: Studies have shown that nutritional supplements could reduce the adverse effects induced by air pollution. However, whether dietary patterns can modify the association of long-term exposure to fine particulate matter (PM2.5) and its constituents with hypertension defined by the 2017 ACC/AHA guideline has not been evaluated. METHODS: We included 47,501 Chinese adults from a nationwide cross-sectional study. PM2.5 and five constituents were estimated by satellite-based random forest models. Dietary approaches to stop hypertension (DASH) and alternative Mediterranean diet (AMED) scores were calculated for each participant. Interactions between dietary patterns and air pollution were examined by adding a multiplicative interaction term to logistic models. RESULTS: Long-term exposure to PM2.5 and its constituents was associated with an increased risk of hypertension and stage 1-2 hypertension. The DASH and AMED scores significantly modified these associations, as individuals with higher scores had a significantly lower risk of air pollution-related hypertension and stage 1-2 hypertension (P-interaction < 0.05), except for interaction between PM2.5, sulfate, nitrate, ammonium, and AMED score on stage 1 hypertension. For each IQR increase in PM2.5, participants with the lowest DASH and AMED quintiles had hypertension risk with ORs (95%CI) of 1.20 (1.10, 1.30) and 1.19 (1.09, 1.29), whereas those with the highest DASH and AMED quintiles had lower risks with 0.98 (0.91, 1.05) and 1.04 (0.97, 1.11). The stratified analysis found modification effect was more prominent in the < 65 years age group. Consuming more fresh vegetables, fruits, whole grains, and dairy would reduce the risk of hypertension caused by PM2.5 and its constituents. CONCLUSIONS: Dietary patterns rich in antioxidants can reduce long-term exposure to PM2.5 and its constituents-induced hypertension defined by the 2017 ACC/AHA guideline, especially in young and middle-aged individuals. Compared to the Mediterranean diet, the DASH diet offers superior dietary guidance to prevent stage 1 hypertension caused by air pollution.
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Poluentes Atmosféricos , Poluição do Ar , Hipertensão , Adulto , Pessoa de Meia-Idade , Humanos , Material Particulado/análise , Poluentes Atmosféricos/toxicidade , Estudos Transversais , Hipertensão/epidemiologia , Hipertensão/induzido quimicamente , Poluição do Ar/análise , Exposição Ambiental , China/epidemiologiaRESUMO
OBJECTIVE: To get a better knowledge of the current situation of screen time among primary and secondary school students in all provinces of China from 2016 to 2017. METHODS: Data was from the China National Nutrition and Health Surveillance of Children and Lactating Women(2016-2017).275 monitoring points were selected from 31 provinces of China by multi-stage stratified cluster random sampling. A total of 280 primary and secondary school students from 2 primary schools, 2 junior middle schools and 1 senior high school were randomly selected from each monitoring point to complete the survey.73629 primary and secondary school students(except grade 9 and grade 12) were included in this study. RESULTS: From 2016 to 2017, the average daily screen time of Chinese primary and secondary school students was(1.65±1.54) hours, M(P25, P75) was 1.29(0.58, 2.21) h. In terms of provinces, the average daily electronic screen time of primary and secondary school students in Beijing, Tianjin, Jilin, Fujian, Guangdong and Hainan is more than 2 hours. In terms of rural and urban areas, the screen time of students in Beijing's rural and urban areas, Tianjin's rural areas, Hebei's urban areas, Liaoning's rural areas, Jilin's rural areas, Fujian's urban areas, Guangdong's urban areas, Guangxi's urban areas, Hainan's rural and urban areas, and Xinjiang's urban areas all exceeds 2 hours/day. Besides, screen times of rural primary and secondary school students in Beijing(Z=2.62, P<0.01), Tianjin(Z=5.94, P<0.01), Liaoning(Z=11.56, P<0.01), Jilin(Z=-7.59, P<0.01), Shanghai(Z=3.19, P<0.01), Jiangsu(Z=12.00, P<0.01), Zhejiang(Z=-4.80, P<0.01), Anhui(Z=-4.67, P<0.01), Jiangxi(Z=-3.29, P=0.01), and Sichuan(Z=-4.53, P<0.01) are longer than that of urban students. CONCLUSION: There are urban-rural differences in the average daily electronic screen time and different types of electronic screen time of primary and secondary school students in China's provinces from 2016 to 2017.
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População do Leste Asiático , Tempo de Tela , Criança , Feminino , Humanos , China/epidemiologia , Lactação , Estudantes , Adolescente , População Urbana , População RuralRESUMO
Zinc is an essential micronutrient that is involved in several metabolic processes, especially children's growth and development. Although many previous studies have evaluated the zinc nutritional status of children, there are very few reports on children aged 6-18 years old. Furthermore, there are few reports on children's zinc nutrition status based on the Chinese population. According to WHO data, the prevalence of zinc deficiency in Asian countries is rather high and has resulted in high child mortality. In this study, we aimed to comprehensively assess zinc nutritional status and the prevalence of zinc deficiency among children aged 6-18 years in China based on nationally representative cross-sectional data. Subgroup comparisons were made under possible influencing factors. The potential risk factors of zinc deficiency were also discussed. A total of 64,850 children, equally male and female, were recruited from 150 monitoring sites in 31 provinces through stratified random sampling from China National Nutrition and Health Survey of Children and Lactating Mothers (CNNHS 2016-2017). Median and interquartile intervals were used to represent the overall zinc concentration levels and different subgroups. A Chi-square test was used to compare serum zinc levels and the prevalence of zinc deficiency in children under different group variables. In order to study the influencing factors of zinc deficiency, multiple logistic regression was utilized. It was found that the median concentration of serum Zn was 88.39 µg/dL and the prevalence of Zn deficiency was 9.62%. The possible influence factors for Zn deficiency were sex, anemia, nutritional status, city type and income. By conducting a subgroup analysis of the factors, it was found that males; those with anemia, stunting and low income; and children living in rural areas have a higher risk of Zn deficiency. This study offers a comprehensive analysis of Zn nutritional status among Chinese children, which provides reliable data for policy formulation to improve the zinc nutrition status of children.
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Deficiências Nutricionais , Estado Nutricional , Zinco , Adolescente , Criança , Feminino , Humanos , Masculino , Anemia/epidemiologia , Estudos Transversais , População do Leste Asiático/estatística & dados numéricos , Desnutrição/sangue , Desnutrição/epidemiologia , Prevalência , Fatores de Risco , Zinco/sangue , Zinco/deficiência , China/epidemiologia , Deficiências Nutricionais/sangue , Deficiências Nutricionais/epidemiologia , Micronutrientes/sangue , Micronutrientes/deficiênciaRESUMO
The purpose of this study was to analyze the fruit and vegetable intake status and examine both potential risk and protective action factors in the Chinese labor force population, while investigating the association between fruit and vegetable intake and malnutrition in this population. Data were derived from a population-based cross-sectional survey, the China Nutrition and Health Surveillance, 2015-2017. Sociodemographic information, physical measurements, and dietary intake data were collected. A total of 45,459 survey respondents aged 18-64 years old were included in the analysis. Fruit and vegetable consumption data were assessed by a food frequency questionnaire (FFQ), and the average daily intake was calculated. In 2015, the daily intake of fresh fruits, fresh vegetables, and combined fruits and vegetables among the Chinese labor force was 64.3 g, 210.0 g, and 330.0 g (median), respectively. Compared with the Dietary Guidelines for Chinese Residents (2022), 79.9% and 53.0% were at risk of inadequate fruit and vegetable intake, while 55.2% were at risk of inadequate intake of combined fruits and vegetables compared with the WHO recommendation. Multivariate logistic regression analysis showed that female gender, higher educational level, and higher income were protective factors for adequate fruit intake, while increasing age and living in the southern region were protective factors for adequate vegetable intake. The results confirmed that increasing vegetable intake helped urban labor force maintain normal BMI and control overweight. Increased fruit consumption may reduce the risk of underweight, but no clear negative association with overweight and obesity was observed. In conclusion, the consumption of fresh fruits and vegetables by the Chinese labor force was inadequate, especially for fruits. Interventions are needed to promote the daily intake of fruits and vegetables in this population. In addition, further in-depth studies in this area are recommended in populations with different health status.
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Frutas , Desnutrição , Adulto , Humanos , Feminino , Adolescente , Adulto Jovem , Pessoa de Meia-Idade , Verduras , Dieta , Sobrepeso , Estudos Transversais , China/epidemiologia , EmpregoRESUMO
OBJECTIVE: To analyze the intakes of main food among the children of 6-17 years in different regions of China from 2019 to 2021, and to provide a scientific basis for evaluation and guiding Chinese children to make reasonable diet. METHODS: Multistage stratified random sampling method was used to collect data in east China, north China, central China, south China, southwest, northwest and northeast seven areas of each random two provinces, randomly selected from each province one urban survey site and one rural survey site, 28 sites of the 13th Five Year National Science and Technology Basic Resources Survey Project-Chinese children aged 0-18 investigation and application of nutrition and health system in 14 provinces of China. The study included 6413 children aged 6 to 17. Three consecutive 24-hour recalls method combined with weighing were used to collect the information of food intake. According to the food classification in the standard version of the food composition list, the food was divided into cereals, tubers, fresh vegetables, fresh fruits, meat and poultry, fish and shrimp, eggs, milk, etc. , and the intake of various foods was calculated for boys and girls aged 6-8, 9-11, 12-14 and 15-17 in different regions. RESULTS: Compared with the average daily food intake of children of the same sex and age in the urban and rural, The average daily intake of cereals and tubers for boys aged 9-17, cereals for girls aged 9-17, tubers for girls aged 12-17, and fish and shrimp for boys of edible population aged 15-17 were higher in rural areas than in urban areas. There were differences in the average daily food intake and consumption rate of fresh vegetables, fresh fruits, meat and poultry, eggs and milk of the same sex and age, which were higher in urban than in rural areas(P<0.05). Compared with the average daily food intake of children of the same sex and age in the south and the north, the average daily intake of cereals and eggs for boys aged 9-14, cereals for girls aged 6-8, and fresh fruits for boys and girls of edible population aged 6-17 were higher in the north than in the south. There were differences in average daily intake and consumption rates of tubers, fresh vegetables, meat and poultry, milk and fish and shrimp of the same sex and age, which were higher in the south than in the north(P<0.05). Compared with the average daily food intake of children of the same sex and age in the eastern, central and western regions, the average daily intake of cereals for boys aged 6-14, cereals for girls aged 6-17, fresh fruits for boys and girls of edible population aged 6-17, and fish and shrimp for boys and girls of edible population aged 15-17 were lower in the eastern region than in the central and western regions. The average daily intake of tubers for boys aged 9-11 and 15-17, for girls aged 9-17 were higher in the western regions than the eastern and central regions. The average daily intake of eggs for boys and girls aged 12-17 was lower in western regions than the eastern and central regions. There were differences in average daily intake and consumption rates of fresh vegetables, meat and poultry and milk of the same sex and age, which were higher in the eastern region than in the central and western regions. (P<0.05). The proportion of coarse grains to cereals was low, between 3.7% and 10.1%. The proportion of pork to meat and poultry was high, between 56.1% and 71.4%. CONCLUSION: In China, there are differences in daily intake of main food for children aged 6 to 17 years old in urban and rural areas, north and south areas, east, central and west areas.
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Dieta , Verduras , Animais , China , Frutas , Estado Nutricional , Grão Comestível , Inquéritos NutricionaisRESUMO
Dietary fat intake in the Chinese population has increased. The PURE (prospective urban rural epidemiology) study concluded the potential advantage of total fat and saturated fats (SFA) over carbohydrates on blood lipids with the inaccurate assessment of dietary fats. We investigated the dietary fat profile among 48,315 participants (aged 30−70 years, national representative) from the China Nutrition and Health Surveillance (2015−2017), determined the relationship of various fats with blood lipid biomarkers in the selected 39,115 participants, and compared the results with the PURE study. Dietary fat intake was calculated by using 3 days of 24 h recalls and food inventory. Serum lipid biomarkers were assessed at morning fasting state by health professionals. Plant fats (21.5% of total energy (TE)) dominated in total fat intake (69.5 g/day, 35.6% TE), with monounsaturated fats (MUFA) in the largest (13.8% TE) portion and plant oils as the major source (43.7%). Two thirds of the population consumed more than 30% TE from dietary fats and nearly half more than 35%, while 26.4% of them exceeded 10% TE from SFA. Total fat was positively associated with total cholesterol (TC), low-density lipoprotein cholesterol (LDL-c), but also high-density lipoprotein cholesterol (HDL-c), and negatively with triglyceride (TG)-to-HDL-c ratio (TGHDL) (all p-trend < 0.05). Replacing total fat with carbohydrate yielded adverse changes in most biomarkers (higher LDL-c, TG, and TGHDL, lower HDL-c, all p < 0.05) when total fat was low (<34.9% TE). Regardless of fat intake level, replacing plant fat or polyunsaturated fats (PUFA) with carbohydrate yielded the most adverse changes (higher TC, LDL-c, TG, TC-to-HDL-c ratio (TCHDL), and TGHDL, but lower HDL-c, all p < 0.01), while replacing animal fat/SFA with plant fat/PUFA yielded the most favorable changes (lower all biomarkers, all p < 0.01). The results suggested a less harmful effect of carbohydrate on blood lipids when total fat was high, and more beneficial effect of unsaturated fats, than the PURE. In conclusion, dietary fat intake in Chinese adults had reached quite a high level, but with a different profile from Western populations. Replacement of SFA (animal fat) with PUFA (plant fat) could most effectively improve blood lipids, while replacement with carbohydrate could slightly benefit only when total fat was high. The present results may be more applicable to the Chinese population than the PURE study.
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Doenças Cardiovasculares , População do Leste Asiático , Humanos , LDL-Colesterol , Estudos Prospectivos , Carboidratos da Dieta , Gorduras na Dieta/efeitos adversos , Lipídeos , Triglicerídeos , HDL-Colesterol , BiomarcadoresRESUMO
Previous studies have used the traditional average-value method to calculate the usual dietary intake of a population, but the results may be biased due to the measurement errors. The aim of this study was to provide an assessment of the usual micronutrient intake and estimate the prevalence of inadequate intake among Chinese adults. Data from the Chinese Nutrition and Health Surveillance 2015−2017 as well as a total of 72,231 subjects aged 18 years and older were included in the analysis. The 24 h recall method combined with the condiment weighing method were used for three consecutive days to collect daily food and condiments intake. The daily intake of 16 micronutrients was calculated based on the Chinese Food Component Tables. The National Cancer Institute (NCI) method was used to estimate the usual intake of micronutrients, and the prevalence of inadequate intake was estimated using the estimated average requirement (EAR) cut-point method. The results showed that, except for sodium, copper, iron (only for males), vitamin E, and phosphorus, the usual intake of micronutrients in Chinese adults was low, and the prevalence of inadequate intake ranged from 38.67 to 97.63%. The prevalence of inadequate calcium and riboflavin intake was more than 90%, and the proportion of individuals with a usual intake of thiamine, vitamin A, potassium, and selenium below EAR also reached 80%. Manganese, magnesium, vitamin C, and zinc were potentially deficient micronutrients, with the prevalence of inadequate intake ranging from 38.67% to 77.09%. However, usual sodium intake was extremely high with an average of 5139.61 mg/day, and only a quarter of Chinese adults were below the World Health Organization (WHO) recommended value. For most micronutrients, the usual dietary intake declined with age and the prevalence of inadequate intake increased with age. Except for zinc, vitamin A, and B-vitamins, the prevalence of micronutrient deficiencies was higher in females than in males in the same age group (p < 0.05). Therefore, Chinese adults do not receive enough micronutrients. Effective nutrition supplementary strategies and measures are needed to address these problems.
Assuntos
Micronutrientes , Vitamina A , Adulto , Masculino , Feminino , Humanos , Prevalência , Dieta , Estudos Transversais , Vitaminas , Zinco , China/epidemiologiaRESUMO
Regional dietetic cultures were indicated in China, but how dietary patterns geographically varied across China is unknown. Few studies systematically investigated the association of dietary patterns with overweight/obesity and hypertension and the potential mechanism with a national sample. This study included 34,040 adults aged 45 years and older from China Nutrition and Health Surveillance (2015−2017), who had complete outcome data, reliable intakes of calorie and cooking oils, unchanged diet habits, and without diagnosed cancer or cardiovascular disease. Outcomes were overweight/obesity and hypertension. By using the Gaussian finite mixture models, four dietary patterns were identifiedcommon rice-based dietary pattern (CRB), prudent diversified dietary pattern (PD), northern wheat-based dietary pattern (NWB), and southern rice-based dietary pattern (SRB). Geographic variations in dietary patterns were depicted by age−sex standardized proportions of each pattern across 31 provinces in China. We assessed the association of these dietary patterns with outcomes and calculated the proportion mediated (PM) by overweight/obesity in the association of the dietary patterns with hypertension. Evident geographic disparities in dietary patterns across 31 provinces were observed. With CRB as reference group and covariates adjusted, the NWB had higher odds of being overweight/obese (odds ratio (OR) = 1.44, 95% confidence interval (CI): 1.36−1.52, p < 0.001) and hypertension (OR = 1.07, 95%CI: 1.01−1.14, p < 0.001, PM = 43.2%), while the SRB and the PD had lower odds of being overweight/obese (ORs = 0.84 and 0.92, 95%CIs: 0.79−0.89 and 0.85−0.99, p < 0.001 for both) and hypertension (ORs = 0.93 and 0.87, 95%CIs: 0.87−0.98 and 0.80−0.94, p = 0.038 for SRB and p < 0.001 for PD, PMs = 27.8% and 9.9%). The highest risk of overweight/obesity in the NWB presented in relatively higher carbohydrate intake (about 60% of energy) and relatively low fat intake (about 20% of energy). The different trends in the association of protein intake with overweight/obesity among dietary patterns were related to differences in animal food sources. In conclusion, the geographic distribution disparities of dietary patterns illustrate the existence of external environment factors and underscore the need for geographic-targeted dietary actions. Optimization of the overall dietary pattern is the key to the management of overweight/obesity and hypertension in China, with the emphasis on reducing low-quality carbohydrate intake, particularly for people with the typical northern diet, and selection of animal foods, particularly for people with the typical southern diet.
Assuntos
Hipertensão , Sobrepeso , Humanos , Carboidratos , China/epidemiologia , Dieta , Eletrólitos , Comportamento Alimentar , Hipertensão/epidemiologia , Obesidade/epidemiologia , Óleos , Sobrepeso/epidemiologiaRESUMO
This study aimed to investigate the prevalence of hyperuricemia (HUA) and associated risk factors in Chinese adults aged 18 to 59 years. All the data were collected from the China Nutrition and Health Surveillance during the period 2015-2017, which adopted a stratified, multistage, random sampling method on a national scale. A total of 52,627 participants aged 18 years or older were included in this study. The definition of hyperuricemia was 420 µmol/L for male and 360 µmol/L for female. The Rao-Scott chi-square test was used to compare the differences in prevalence between or among the subgroups. A weighted two-level multivariate survey-logistic regression was used to detect the correlations between HUA and demographic, physical, lifestyle and metabolic factors. The total prevalence of HUA was 15.1%, and that was higher in male, current smokers, higher BMI and less physical activities subgroups, and also in noninfectious chronic diseases (NCDs) subgroups. The subgroups of non-vegetarian diet, insufficient vegetable intakes and excessive red meat and alcohol intakes had significantly higher HUA prevalence. After introducing all the variables in the survey-logistic regression, gender, age, BMI, physically active, hypertension, diabetes mellitus, bean and nut intake, vegetable intake, red meat intake, alcohol consumption and vegetarian were associated with HUA. Among the significant variables, age and physical active served as a protective factor, and BMI showed to be a risk factor for HUA. Hypertension and dyslipidemia could increase the risk for HUA, while diabetes mellitus was shown a negative association with it. For dietary factors, vegetarian diet, sufficient beans and nuts and vegetables intake could lower the risk of HUA, but more alcohol could increase the risk of HUA. Dietary factor played a key role in HUA. It suggested that the intervention of dietary factor should receive more attention to ameliorate the high prevalence of HUA in China.
Assuntos
Hipertensão , Hiperuricemia , Adulto , China/epidemiologia , Feminino , Humanos , Hiperuricemia/diagnóstico , Hiperuricemia/epidemiologia , Masculino , Prevalência , Fatores de RiscoRESUMO
Steamed potato bread has received much attention from nutritionists and agriculturalists since it became a staple food of China in 2015. Epidemiological studies have indicated that potatoes may cause diabetes and hypertension, but few trials have evaluated this effect. Through a clinical trial, we evaluated the effect of steamed potato bread intake on adults. In total, 49 and 30 individuals were assigned to the intervention and control groups, respectively. Potato-wheat bread (raw wheat flour and cooked potato flour in the ratio 3:7) and steamed wheat bread (100% raw wheat flour) were provided to the intervention and control groups, respectively, once a day for 4 weeks. Compared with the control group, the intervention group showed significant net changes in weight (-0.6 kg; 95% confidence interval [CI]: -1.2, -0.1; p = 0.016), body mass index (BMI, -0.2 kg/m2; 95% CI: -0.4, -0.1; p = 0.020), low-density lipoprotein cholesterol (LDL-c, -0.22 mmol/L; 95% CI: -0.49, -0.01; p = 0.035), and the urinary level of Na+/K+ (-2.4; 95% CI: -4.1, -0.7; p = 0.007). In conclusion, the steamed potato-wheat bread intake for 4 weeks resulted in decreases in weight, BMI, LDL-c, and the urinary Na+/K+ level among Chinese adults.
RESUMO
OBJECTIVE: To analyze the status of dietary micronutrient in takes among the children of 12-17 years old in China from 2016 to 2017. METHODS: Multistage stratified random sampling method was used to collect data in 275 monitoring sites of the China National Nutrition and Health Survey of Chinese children and lactating mothers in 31 provinces of China from 2016 to 2017. Three consecutive 24-hour recalls method wasused to collect the information of food intake, and household or school canteen edible oil and condiments weighing were adopted. The dietary micronutrient were analyzed based on theChina Food Composition table. RESULTS: The average daily intakes of vitamin A(retinol activity equivalents), vitamin B_1(thiamine), vitamin B_2(riboflavin), vitamin C(ascorbic acid), calcium, iron, zinc and sodium were 356.8 µ g, 0.8 mg, 0.8 mg, 60.5 mg, 342.8 mg, 19.2 mg, 9.8 mg and 5 230.4 mg, respectively. The proportion ofdaily average intakes of vitamin A, vitamin B_1, vitamin B_2, vitamin C and calcium lower than 60% of the recommended value were 74.3%, 59.4%, 57.7%, 62.6% and 93.0%, respectively. The proportion of daily intake of iron and zinc reaching 80% of the recommended value were 73.8% and 64.8%, respectively. The proportion of daily average intake of sodium exceeded the appropriate intake by 94.4%. The average daily intakes of micronutrients increased with age among the children of 12-17 years old. There were differences of daily intake of vitamin A in gender, urban and rural areas(P<0.05), there was difference of vitamin C in urban and rural areas(P<0.01), there were differences of daily intake of vitamin B_1, vitamin B_2, calcium, iron and zinc in age, gender, urban and rural areas(P<0.01), there were differences in the average daily intake of sodium in age, gender(P<0.01). CONCLUSION: The average daily dietary of iron and zinc intakes in the diet were basically enough in most children of 12-17 years old in China, that of sodium was too much, and that of some micronutrients was insufficient.
Assuntos
Micronutrientes , Oligoelementos , Adolescente , Ácido Ascórbico , Cálcio , Cálcio da Dieta , Criança , China , Dieta , Ingestão de Alimentos , Ingestão de Energia , Feminino , Humanos , Ferro , Lactação , Estado Nutricional , Sódio , Vitamina A , Vitaminas , ZincoRESUMO
This study aims to determine the associations of dietary patterns with metabolic syndrome (MetS) and its components in Chinese children and adolescents aged 7-17 in 2016-2017. Using the data from the China National Nutrition and Health Surveillance of Children and Lactating Mothers in 2016-2017, the sociodemographic information, diet, anthropometric measurements and clinical examinations of subjects were obtained, and a total of 13,071 school-aged children and adolescents were included in this study. The Cook criteria were used to define MetS and its components. Dietary intake was derived from 24-h dietary records for three consecutive days, combined with the weighing method. Factor analysis was used to identify major dietary patterns. The associations of dietary patterns with MetS and its components were examined by logistic regression analysis. Consequently, five distinct dietary patterns were identified by factor analysis, and the relationships between dietary patterns with MetS and its components were observed. After adjusting for covariates, the animal product and vegetable patterns may have a positive association with MetS; the condiment pattern was positively associated with low HDL-C; the fruit and junk food patterns had positive relationships with MetS, abdominal obesity and high TG; the cereals and tubers pattern was positively associated with MetS, abdominal obesity, high TG and low HDL-C; the beans pattern was positively associated with high TG.
Assuntos
Síndrome Metabólica , China/epidemiologia , Dieta/métodos , Feminino , Humanos , Lactação , Síndrome Metabólica/epidemiologia , Mães , Obesidade Abdominal , Fatores de RiscoRESUMO
This descriptive study aimed to determine the prevalence of metabolic syndrome (MetS) and its components among Chinese children and adolescents aged 7-17 from 2016-2017 according to the Cook's criteria modified for age on the basis of the National Cholesterol Education Program-Adult Treatment Panel III (NCEP-ATP III) and to evaluate the associations between the factors of interest (especially vitamin A, vitamin D and hyperuricemia) of MetS and its components, using data from the China National Nutrition and Health Survey of Children and Lactating Mothers from 2016-2017. A total of 54,269 school-aged children and adolescents were ultimately included in this study. Anthropometric measurements and laboratory examinations of the subjects and their relevant information were also collected. A multivariate logistic regression analysis model was applied to analyze the relationships between relevant factors associated with MetS and its components. In the present study, the prevalence of MetS in children and adolescents was 5.98%. Among the five components of MetS, elevated blood pressure (BP) and abdominal obesity were the most prevalent (39.52% and 17.30%), and 58.36% of the subjects had at least one of these components. In the multivariate logistic regression, an overweight condition, obesity and hyperuricemia were positively correlated with the incidence of MetS and all five components. There was also a positive association observed between vitamin A and the risk of MetS and some components of MetS (abdominal obesity and high triglycerides (TG)) and vitamin A was negatively associated with the risk of low high-density lipoprotein cholesterol (HDL-C). Subjects with vitamin D inadequacy had a higher risk of MetS (OR = 1.364, 95%CI: 1.240-1.500) and four of its components, excepting elevated FBG (fast blood glucose). Vitamin D deficiency was positively associated with MetS (OR = 1.646, 95%CI: 1.468-1.845) and all five of its components. Well-designed, large-scale prospective studies are also needed in the future.
Assuntos
Hiperuricemia , Síndrome Metabólica , Adolescente , Adulto , Índice de Massa Corporal , Criança , China/epidemiologia , Feminino , Inquéritos Epidemiológicos , Humanos , Hiperuricemia/complicações , Hiperuricemia/epidemiologia , Lactação , Mães , Obesidade/epidemiologia , Obesidade Abdominal/complicações , Obesidade Abdominal/epidemiologia , Prevalência , Estudos Prospectivos , Fatores de Risco , Vitamina A , Vitamina DRESUMO
To analyze the relationship between famine exposure at different stages of early life and the risk of developing metabolic syndrome (MetS) in adulthood, 11,865 study participants from the 2015 Chinese Adult Chronic Disease and Nutrition Surveillance Program were enrolled and then divided into a non-exposed group, fetal exposure group, early childhood exposure group, middle childhood exposure group and late childhood exposure group according to their birth time and famine exposure. MetS was defined by the NCEP ATP III criteria. Using logistic regression to explore the association between famine exposure at different stages of early life and the increased risk of developing MetS in adulthood. After adjusting other factors, compared with the non-exposure group, famine exposure during the fetal period (OR = 1.23, 95% CI = 1.00-1.51), early childhood (OR = 1.44, 95% CI = 1.11-1.87), middle childhood (OR = 1.50, 95% CI = 1.13-1.99) and late childhood (OR = 1.67, 95% CI = 1.21-2.30) had a higher risk of developing MetS in adulthood. Stratified analysis found an association between early life famine exposure and the increased risk of MetS in adulthood in females, overweight or obese participants and those who lived in areas of severe famine, in city areas and in southern China. Compared with the non-exposed group, the fetal, early childhood, middle childhood and late childhood famine-exposed groups are more likely to suffer from MetS in adulthood, especially the subjects who are females, overweight or obese and had lived in severe famine areas, city areas and southern China.