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Objective:To obtain the relative biological effectiveness (RBE) of DNA double strand breaks (DSB) clusters by tracing the mechanism of radiated DNA damage, and explore the relationship among the biological effectiveness of DNA damage, chromosomal aberrations and germ cell death.Methods:Taking low-energy electrons, protons, and α particles as the research objects, this study simulated the process that cell nuclei were exposed to particle radiation using a radiation-related physicochemical model. On the ground of the DSB density-based spatial clustering of applications with noise (DBSCAN) algorithm, the DSB cluster classification method was improved to weaken the connection between the DSBs and the random distribution assumptions of energy depositions during the simulation. In this manner, the DSB clusters can be much closer to a non-random distribution. Furthermore, this study obtained the yields of DSB clusters and proposed a method to calculate the RBE values of DSB clusters.Results:The calculated RBE value (12.29) of DSB clusters of 2 MeV α particles was similar to the experimental RBE values of chromosomal fragments (15.3±5.9) and cell survival (14.7±5.1).Conclusions:After high-LET ionizing radiation, unlike the single DSB, the RBE of DSB clusters was similar to that of chromosomal aberration and cell survival.
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Objective:To evaluate and analyze the health status of the elderly from physical health, mental health and social health, so as to understand the health status and health service needs of rural elderly.Methods:A total of 263 elderly people aged 60 years and over(mean aged 70.9±7.9 years, 113 males and 150 females, 125 aged 60-69 years, 98 aged 70-79 years and 40 aged 80 years and over)in Nanwangkong Village, Shaozhuang Town, Qingzhou City, Weifang City, Shandong Province were selected by cluster sampling method.The physical, mental, social and overall health status of the elderly were comprehensively evaluated and analyzed by self-designed questionnaire.Results:The overall health rate was 30%(79 cases), and the physical health, mental health and social health rates were 73.8%(194 cases), 84.0%(221 cases)and 34.6%(91 cases), respectively, in rural elderly in this area.The physical health was better in males than in females in 80~ years old groups( χ2=5.736, P<0.05). The overall health was better in males than in females in the total age group and the 60~69 years old groups( χ2=7.468 and 11.116, both P<0.01). The proportions of unhealthy, basic healthy and healthy people in the overall and the dimensions of physical health, mental health and social health had significant differences in the 60~69, 70~79 and 80~ years old groups( χ2=40.590, 29.342, 18.503 and 27.615, all P<0.01), and the Chi-square test for trend showed that there was a statistically significant downward trend of overall health grade distribution with age( χ2=21.994, 12.831, 16.570 and 22.595, both P<0.01). Conclusions:In this study, 30.0% of the rural elderly were considered healthy, 48.3% were basically healthy, and 21.7% were unhealthy.The health status of the elderly gradually deteriorates with age.The government should strengthen the multidimensional health assessment of the rural elderly and provide the comprehensive health guidance services and targeted interventions for the elderly in terms of disease control, psychological counseling and social participation.
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Objective To assess the capacity of prevention and control on chronic non-communicable diseases (NCDs) in China.Methods On-line questionnaire survey was adopted by 3 395 CDCs at provincial,municipal and county (district) levels and 3 000 primary health care units,and assess on capacity of policy,infrastructure,capacity of training and guidance,cooperation,surveillance,intervention and management,assessment and scientific research from September 2014 to March 2015.Results (1) Capacity of policy:23 (71.9％) provincial,139 (40.6％) municipal and 919 (31.2％) county (district) governments or health administrative departments had existing plans for prevention and control of NCDs.(2) Capacity of infrastructure:25 (78.1％) provincial,136 (39.8％)municipal and 529 (18.0％) county (district) CDCs had set up departments dedicated to the prevention and control of NCDs,with 9 787 staff members,accounting for 5.0％ of the total CDC personnel,working on NCDs prevention and control programs.68.1％ of the CDCs had special funding set for NCDs prevention and control.(3) Capacity of training and guidance:2 485 CDCs (74.9％) held all kinds of training on prevention and control ofNCDs.2 571 (87.3％) CDCs at the county (district) level provided technical guidance for primary health care units.(4) Capacity of cooperation:42.0％ of the CDCs had experiences collaborating with the mass media.(5) Capacity of surveillance:73.8％ of the CDCs had set up programs for death registration while less than 50.0％ of the CDCs had implemented surveillance programs on major NCDs and related risk factors.In terms of primary health care units,32.4％ of them had set up reporting system for newly developed stroke case and 29.9％ of them having programs on myocardial infarction case reporting.(6) Capacity of intervention and management:69.1％ and 68.2％ of the CDCs conducted individualized intervention programs on hypertension and diabetes,while less than 40.0％ CDCs conducting intervention programs on other NCDs and risk factors.More than 90.0％ of the primary health care units carried out follow-up surveys on hypertension and diabetes.However,only 17.4％ and 13.7％ of the CDCs working on hypertension and diabetes patient management programs while 83.7％ and 80.4％,of them following the standardized guidelines for management,with successful rates of control as 59.2％ and 55.2％,respectively.(7) Capacity of assessment:32.4％ of the CDCs or health administrations carried out evaluation programs related to the responses on NCDs.(8) Capacity of scientific research:the capacity on scientific research among provincial CDCs was apparently higher than that at the municipal or county (district) CDCs.Conclusions Compared with the results of previous two surveys,the capacity on policies set for the prevention and control programs improved continuously,at all level NCDs,but remained relatively weak,especially at both county (district) and primary health care units.
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Objective To assess the capacity of prevention and control on chronic non-communicable diseases (NCDs) in China.Methods On-line questionnaire survey was adopted by 3 395 CDCs at provincial,municipal and county (district) levels and 3 000 primary health care units,and assess on capacity of policy,infrastructure,capacity of training and guidance,cooperation,surveillance,intervention and management,assessment and scientific research from September 2014 to March 2015.Results (1) Capacity of policy:23 (71.9％) provincial,139 (40.6％) municipal and 919 (31.2％) county (district) governments or health administrative departments had existing plans for prevention and control of NCDs.(2) Capacity of infrastructure:25 (78.1％) provincial,136 (39.8％)municipal and 529 (18.0％) county (district) CDCs had set up departments dedicated to the prevention and control of NCDs,with 9 787 staff members,accounting for 5.0％ of the total CDC personnel,working on NCDs prevention and control programs.68.1％ of the CDCs had special funding set for NCDs prevention and control.(3) Capacity of training and guidance:2 485 CDCs (74.9％) held all kinds of training on prevention and control ofNCDs.2 571 (87.3％) CDCs at the county (district) level provided technical guidance for primary health care units.(4) Capacity of cooperation:42.0％ of the CDCs had experiences collaborating with the mass media.(5) Capacity of surveillance:73.8％ of the CDCs had set up programs for death registration while less than 50.0％ of the CDCs had implemented surveillance programs on major NCDs and related risk factors.In terms of primary health care units,32.4％ of them had set up reporting system for newly developed stroke case and 29.9％ of them having programs on myocardial infarction case reporting.(6) Capacity of intervention and management:69.1％ and 68.2％ of the CDCs conducted individualized intervention programs on hypertension and diabetes,while less than 40.0％ CDCs conducting intervention programs on other NCDs and risk factors.More than 90.0％ of the primary health care units carried out follow-up surveys on hypertension and diabetes.However,only 17.4％ and 13.7％ of the CDCs working on hypertension and diabetes patient management programs while 83.7％ and 80.4％,of them following the standardized guidelines for management,with successful rates of control as 59.2％ and 55.2％,respectively.(7) Capacity of assessment:32.4％ of the CDCs or health administrations carried out evaluation programs related to the responses on NCDs.(8) Capacity of scientific research:the capacity on scientific research among provincial CDCs was apparently higher than that at the municipal or county (district) CDCs.Conclusions Compared with the results of previous two surveys,the capacity on policies set for the prevention and control programs improved continuously,at all level NCDs,but remained relatively weak,especially at both county (district) and primary health care units.
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Objective To investigate the association between microalbuminuria and cardiovascular risk factors in a general Chinese population.Methods A multi-stage cluster randomized sampling method was used to select 2400 residents (18-69 years old) in four counties in Shandong and Jiangsu provinces in October 2013 to March 2014.24-hour MAU were measured for each subject.The prevalence of MAU in different groups was analyzed.The relationship between the aggregation of risk factors and MAU was analyzed.Logistic regression analysis was used to evaluate the association between MAU and cardiovascular risk factors.Results A total of 2265 subjects were included in the analysis.The prevalence of MAU was 8.96％ (203/2265,95％ CI:7.82-10.21).The prevalence of MAU in obesity,hypertension,diabetes,hypertriglyceridemia,and low HDL-C group were 14.65％ (63/430),12.53％ (104/830),20.22％ (36/178),15.57％ (64/411),11.99％ (53/442) respectively,which were significantly higher than the corresponding healthy population (all P ＜ 0.01).Multivariate logistic regression analysis showed that obesity,hypertension,diabetes,and hypertriglyceridemia were risk factors for MAU.The OR(95％ CI) values were 1.491(1.016-2.265),1.660(1.190-2.314),2.291 (1.494-3.515) and 1.734(1.205-2.495) respectively.With the increase in the number of influencing factors,urinary albumin levels and the prevalence of MAU all showed an upward trend.Conclusion MAU was associated with cardiovascular risk factors such as obesity,hypertension,diabetes,and hypertriglyceridemia.
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The Third UN High-level Meeting on Non-Communicable Diseases was held on September 2018. The conference carried out a series of activities on the theme of "Time To Deliver", and adopted the 2018 Political Declaration on Non-Communicable Diseases. The new "5×5" strategy for non-communicable diseases prevention and control was clearly put forward, slow progress of non-communicable diseases prevention and control was criticized and the seven major challenges hindering the progress of non-communicable diseases prevention and control was analyzed, the main role and responsibility of governments at all levels in coping with the challenges of non-communicable diseases was reiterated, and put forward clear requirements. The declaration also reiterates the importance of strengthening public health measures. The meeting and declaration aroused strong repercussions and were regarded as a milestone to promote the global prevention and control of non-communicable diseases, and also brought a series of important inspirations for the development of public health in China in the new era. In order to cope with the heavy burden of non-communicable diseases in China, we must give full play to our institutional advantages, mobilization advantages and organizational advantages, adhere to prevention-oriented, emphasize the role of professional public health institutions, and consolidate and strengthen the disease control system and capacity building.
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Objective@#To assess the follow-up situstion and changes of policies related to the prevention and control on chronic non-communicable diseases (NCDs), in various provinces from 2011 to 2017.@*Methods@#Three national assessment programs on the prevention and control capacity of NCDs were carried out from September 2012 to March 2013, September 2014 to March 2015, and July to November 2018 respectively. Data related to the capacity on policy implementation among the 31 provinces, autonomous regions, municipality directly under the central government and Xinjiang Production and Construction Corps, were collected through online surveys.@*Results@#The rate of data collection in all the provinces reached 100%, for all three surveys. In 2011, 2013, and 2017, the capacity for policy development special funding was distributed for prevention and control NCDs under the provincial fiscal revenue by 27 provinces (84.4%), 26 provinces (81.3%) and 25 provinces (78.1%), and the numbers of provincial governments leaders attended the local activities related to prevention and control NCDs was 15 (46.9%), 13 (40.6%) and 19(59.4%), respectively. From 2009 to 2011, 14 (43.8%) proposals related to the topics on prevention and control of NCDs, were raised at the provincial People’s Congress and Political Consultative Conference, while from 2011 to 2013 and2014 to 2017, 13 (40.6%) and 12 (37.5%) were respectively raised. In terms of capacity for policy development, numbers of provincial comprehensive plan which targeting prevention and control of NCDs reached 6 (18.8%), 20 (62.5%) and 27 (84.4%) in 2011, 2013, and 2017 respectively. In 2011, 2013 and 2017, numbers of provincial special plans that targeting on NCDs or the risk factors of NCDs prevention and control were 0, 1, and 3, respectively.@*Conclusions@#Under the continuous introduction of international and national policies related to prevention and control on NCDs, capacity for policy formulation in various provinces has been greatly improved. However, a slight progress has been made in the capacity for policy making. The increase of capacity building on policy making regarding prevention and control of NCDs, at the provincial government level, has become a key issue.
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Objective@#To explore the short-term effects of communicated activities regarding the China Healthy Lifestyle for All workshop held during September 2018.@*Method@#"National action for three reductions and three health activities" and related content ( "salt reduction," "oil reduction," "sugar reduction," "oral health," "healthy bones," and "healthy weight" ) were used as keywords. Starting September 1, thematic publicity topics were launched and implemented throughout the month. The National Action Office issued promotional materials one day in advance through the WeChat Work Group known as the health promotion network in the mainland, which had been developed by members from different provinces, cities, and counties, to disseminate the materials for use both offline and online. Using search engines such as Baidu search and Sogou search, a third-party professional evaluation agency intelligently captured relevant information and texts from various organizations (including provinces, cities, and countries). The information was gathered and sorted according to different channels and forms; thereby, a database was formed for analysis. The content analysis method was used to quantitatively analyze the change trend of the release volume of related reports, and classified statistics were conducted according to different communication channels and forms. Baidu index, WeChat interactive volume, WeChat index, and Weibo hit times were used for evaluation. Researchers analyzed the difference of release volumes in different provinces (municipalities directly under the central government and autonomous regions), as well as in eastern and central regions.@*Results@#The daily communication trend increased significantly after September, with 42 176 reports on related topics, peaking on September 3 (2 703 reports in a single day); effects of the topic establishment and publicity were shown during the entire month. The Badu index showed the same tendency. The keywords "three reductions," "three health," "all-people action," "oil reduction," "sugar reduction," "salt reduction," "oral health," "healthy bones," and "healthy weight" had become high-frequency words. From the perspective of communication channels, there were 17 576, 11 453, and 8 034 reports by WeChat, the news, and Weibo, respectively, accounting for 41.76%, 27.16%, and 19.05% of the total; these report rates were obviously higher than those of other communication channels. WeChat’s interactions reached 4 064 699, and the WeChat index rose to a peak of 858 275 on September 1, which was 194.44 times higher than on August 10 (before the promotional month); additionally, the number of micro-blogging hits reached 130 907 879. Regarding the form of presentation, in descending order, the most frequent type was graphics, followed by star propaganda, radio drama, and health super material. In addition, the gap between the top five provinces ranked by each channel was large. The number of daily releases varied significantly among provinces (municipalities and autonomous regions), with Beijing taking the top spot with 81 articles, while the western provinces of Xinjiang, Ningxia Hui Autonomous Region, Qinghai Province, and Tibet had relatively low daily releases. Even the gap of rank among the top five in WeChat, news, and individual micro-blogs were larger: Beijing, Shandong Province, and Zhejiang Province were the country’s top three regions in WeChat publishing volume. The communication effect in the eastern, central, and western regions was considerably different, with the eastern region clearly responding better than the other two regions, and the western region had insufficient propaganda capacity as a whole.@*Conclusion@#The communication effect of the China Healthy Lifestyle for All month activities in 2018 was quite effective, but the gap in communication effect by provinces was large.
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Salt reduction is the most cost-effective population strategy to prevent and control hypertension and cardiovascular disease. Accurate measurement of salt intake is an important basis for implementing salt reduction interventions, while the urine sodium measurement is the most objective method to evaluate salt intake. According to different time spans, it is mainly divided into 24-h urine, overnight urine and spot urine collection methods. This article reviewed the application and evaluation of these three urine measurement methods, and compared their advantages and disadvantages. According to the accuracy and feasibility of different urine measurement methods, it is suggested that the 24-h urine collection method can be applied to the correlation study with small sample size, and the overnight urine method and the spot urine method can be applied to the daily population salt reduction interventions and monitoring activities.
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In order to evaluate the intervention effect of the school-based salt reduction model, 28 primary schools were selected in Shandong Province in September 2014 and randomly divided into intervention group (1 361 students, 1 306 parents) and control group (1 364 students,1 340 parents). A series of "small hands and big hands" salt reduction intervention activities were conducted in intervention group for 8 months. After the intervention, the total awareness rate of salt reduction knowledge, the total holding rate of related beliefs and the total reporting rate of related behaviors were 70.65%, 80.30% and 67.03% among students, and 85.66%, 93.77% and 87.93% among parents, in the intervention group, which were higher than those in the control group (37.12%, 66.52% and 50.07% among students; 55.11%, 87.52% and 57.96% among parents) (all P values <0.05). The school-based salt reduction model is effective and feasible.
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Objective@#To understand prevalence, control of hypertension and intake of sodium and potassium among residents aged 50-69 years old in Zhejiang Province.@*Methods@#A multi-stage random cluster sampling method was used to select 3 032 residents aged 50-69 years old in Zhejiang Province. The demographic characteristics, prevalence and control of hypertension were collected through a questionnaire survey, and physical measurement was also performed. The stratified random sampling method was used to detect the level of sodium and potassium in the 24 h urine of 676 subjects. The total amount of 24 h urinary sodium ≥102.55 mmol and the ratio of 24 h urinary sodium and potassium content ≥2 were defined as excessive.@*Results@#The prevalence of hypertension (95%CI) was 56.89% (54.39%-59.40%), and the awareness, treatment and control rate of hypertension were 58.25% (55.01%-61.49%), 45.37% (42.10%-48.65%) and 19.75% (17.01%-22.50%), respectively. 78.99% (n=534) of residents had excessive 24 h urinary sodium, and 95.41% (n=360) of residents had excessive ratio of 24 h urinary sodium and potassium.@*Conclusion@#The prevalence of hypertension in residents aged 50-69 years old in Zhejiang Province was at a high level, and the control of hypertension was not satisfactory in 2017. Most of residents have excessive level of sodium intake and the level of sodium and potassium intake was not balanced.
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Objective@#To analyze the association between 24 h urinary sodium excretion and microalbuminuria (MAU) among Chinese people aged from 18 to 69 years old.@*Methods@#2 400 subjects aged from 18 to 69 years old were selected form Gaomi and Fushan sites of Shandong Province and Xinyi and Ganyu sites of Jiangsu Province in 2013 by using multi-stage stratified cluster random sampling method. Questionnaire survey, physical measurement and 24 h urine collection were conducted. 2 262 subjects were finally included in the analysis. According to the quartile of 24 h urinary sodium, all subjects were divided into Q1-Q4 groups and the levels of urinary microalbumin and MAU among different groups were compared. The relationship between urinary sodium and MAU was analyzed by multivariate logistic regression analysis.@*Results@#The age of subjects was (42.1±13.5) years old, including 1 124 males (49.7%). The 24 h urine volume, urinary sodium, urine albumin M (P25, P75) and MAU detection rate were (1 411±495) ml, (166.4±71.6) mmol/d, 12.5 (9.6, 17.4) mg/d and 9.0% (203 cases), respectively. With the increase of urinary sodium level, the level of urinary albumin increased (Ptrend<0.001), and the prevalence of MAU also showed an upward trend (Ptrend<0.001). Multivariate logistic regression analysis showed that after adjusting for age, gender, smoking, alcohol consumption, BMI, hypertension and diabetes, the risk of MAU in Q4 group increased by 174% compared with Q1 group, and OR (95%CI) value was 2.74 (1.80-4.16).@*Conclusion@#24 h urinary sodium is associated with the prevalence of MAU and salt reduction can help reduce MAU.
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Objective To explore the factors related to the consumption of sugar-sweetened beverages (SSB) among middle school students in four provinces (municipality) in China.Methods A total of 3 469 middle school students were recruited from the Children health cohort in eight counties within the four provinces (municipality).We collected information regarding demography,lifestyle,and family and school situation as well as the consumption frequency of SSB in the previous week.High SSB consumption was defined as "positive" if the frequency was once a day or more.Mean consumption time was calculated,and then logistic regressions were performed to explore the factors influencing SSB consumption.Results Prevalence of high SSB consumption was 11.18％ among the subjects of the eight counties,and the consumption frequency of SSB was 0.21 times per day.Multivariate logistic regression analysis revealed that the following factors were associated with high consumption of SSB:higher grade,rural region,male gender,physical exercise,habit of eating snacks,eating out,and fast-food consumption (P＜0.01).Factors influencing high SSB consumption were not completely equal between genders:physical exercise at school was associated with high SSB consumption only in female students (P＜0.01),while higher grade and eating out in the past week were associated with high SSB consumption only in male students (P＜0.05).Conclusion Factors associated with high SSB consumption among middle school students included grade,region,physical exercise at school,snack consumption,eating out,and fast-food consumption.These factors differed between genders.Intervention programs addressing these factors may be beneficial in reducing SSB consumption in middle school students.
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Objective To investigate the prevalence of physical activity and its influencing factors in rural residents in Shanxi and Chongqing.Methods In four counties (districts) of Shanxi and Chongqing,local residents aged ≥ 18 who lived there for more than one year and had no plan to migrate to other areas in 2 years were surveyed through face to face questionnaire interviews to collect the information about their daily physical activity time,sedentary time,related knowledge and attitude,and others.Results The physical inactivity rate of the residents was 14.9％,and 88.7％ of residents never took daily physical activity.The average sedentary time was (3.91 ± 2.06) hours.The results of multivariate analysis showed that education level,per capita monthly income and activity degree were the factors influencing physical inactivity.Conclusion The proportion of people who never took daily physical activity in the survey area was higher than the average level in rural areas in China,so measures should be taken to improve the overall rate of physical activity.For people who have exercise willingness,but have no practice,and those who have already increased their physical activities,targeted guidance is needed on the basis of strengthened health education.
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Objective To investigate the prevalence of physical activity and its influencing factors in rural residents in Shanxi and Chongqing.Methods In four counties (districts) of Shanxi and Chongqing,local residents aged ≥ 18 who lived there for more than one year and had no plan to migrate to other areas in 2 years were surveyed through face to face questionnaire interviews to collect the information about their daily physical activity time,sedentary time,related knowledge and attitude,and others.Results The physical inactivity rate of the residents was 14.9％,and 88.7％ of residents never took daily physical activity.The average sedentary time was (3.91 ± 2.06) hours.The results of multivariate analysis showed that education level,per capita monthly income and activity degree were the factors influencing physical inactivity.Conclusion The proportion of people who never took daily physical activity in the survey area was higher than the average level in rural areas in China,so measures should be taken to improve the overall rate of physical activity.For people who have exercise willingness,but have no practice,and those who have already increased their physical activities,targeted guidance is needed on the basis of strengthened health education.
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Objective To survey the utilization of basic public health service among hypertensive and diabetic patients in communities.Methods A survey on the utilization of basic public health service was conducted between October 2014 and November 2014,1 511 patients with hypertension and 1 508 patients with type 2 diabetes aged ≥35 years were randomly selected for the survey from 18 communities in 2 cities and 4 townships of Shandong and Jiangsu provinces in China.Results The survey showed that 87.0％ (1 314/1 511) of hypertensive patients and 88.5％ (1 334/1 508) of diabetic patients visited community hcalth services within the year,and the blood pressure/blood glucose elevation were found in community health services in 68.5％ (1 035/1 511) of the hypertensive patients and 53.3％ (804/1 508) of the diabetic patients,respectively.The proportion of participants in community health education was higher in rural areas than that in urban areas [hypertension 73.2％ (556/760) vs.60.3％ (453/751),x2 =48.48,P ＜ 0.01;diabetes 77.8％ (591/760) vs.62.6％ (468/748),x2 =43.73,P ＜ 0.01].The proportion of outpatients who were followed up for more than 4 times was higher in rural areas than that in urban areas [hypertension 61.3％ (466/760) vs.48.4％ (363/751),x2 =79.31,P ＜ 0.01;diabetes 58.8％ (447/760) vs.50.5％ (378/748),x2 =17.78,P ＜0.01].The self-test rate of blood pressure and blood glucose in the urban was higher than that in rural areas [hypertension 41.8％ (314/751) vs.17.8％ (135/760),x2=104.59,P＜0.01;diabetes41.7％ (312/748) vs.11.3％ (86/760),x2=179.28,P ＜ 0.01].The proportion of patients with hypertension who did not take medication was higher in rural areas than in that in urban areas [36.7％ (279/760) vs.24.0％ (180/751),x2 =70.88,P ＜ 0.01],and the proportion of patients with diabetes who did not take medication was not statistically significant between rural and urban areas [20.8％ (156/760) vs.19.8％ (148/748),x2 =1.95,P ＞ 0.05].The control rates of hypertension and diabetes were 39.8％ (602/1 511) and 39.6％ (597/ 1 508),respectively.82.5％ (1 247/1 511) hypertensive patients and 75.6％ (1 140/1 508) diabetic patients selected community clinics for treatment and disease management,and satisfaction rate with primary health care in community clinics were 82.1％ (1 077/1 312) and 82.5％ (1 101/1 334) respectively.Conclusions High percentage of community clinic choice and visit was found,and most of the patients got the recommendation about health life style.But difference existed between the practice of self-monitoring of blood pressure and fasting blood glucose and control of blood pressure and blood glucose and plan of chronic disease prevention and control.
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<p><b>OBJECTIVE</b>To examine the association between 24 h urinary sodium to potassium ratio and metabolic syndrome (MS) in Chinese adults.</p><p><b>METHODS</b>A population-based cross-sectional study was conducted among Chinese adults aged 18-69 years in Shandong province in 2011. Data on 24 h urinary excretion of sodium and potassium and components of MS were examined. Participants were divided into four groups according to the quartile of 24 h urinary sodium to potassium ratio.</p><p><b>RESULTS</b>Of the 1 906 Chinese adults eligible for final data analysis, 471 (24.7%) were with MS. After completion of multivariate logistic regression analysis, when compared to the participants with 24 h urinary sodium to potassium ratio < 4.3, the OR (95% CI) of participants with 24 h urinary sodium to potassium ratio during 4.3-5.6, 5.7-8.1, and ≥ 8.1 were 1.27 (0.93-1.71), 1.06 (0.78-1.46), and 1.45 (1.06-1.97), respectively (P values for linear trend < 0.05). As for the components of MS, the odds of central obesity and elevated blood pressure but not the odds of elevated triglycerides, low high density lipoprotein cholesterol and elevated fasting glucose, had significantly increases with successive 24 h urinary sodium to potassium ratio quartiles (P values for linear trends < 0.05).</p><p><b>CONCLUSION</b>The 24 h urinary sodium to potassium ratio appeared significantly associated with the odds of MS.</p>
Subject(s)
Adolescent , Adult , Aged , Humans , Middle Aged , Young Adult , Asian People , Blood Glucose , Cholesterol, HDL , Blood , Cross-Sectional Studies , Hypertension , Metabolic Syndrome , Urine , Obesity, Abdominal , Potassium , Urine , Sodium , Urine , Triglycerides , BloodABSTRACT
<p><b>OBJECTIVE</b>To describe dietary sodium intakes and resources among residents in Shandong province.</p><p><b>METHODS</b>A total of 2184 subjects were selected by multi-stage stratified cluster random sampling method from 18-69 years old people in Shandong province in June, 2011. A total of 2140 subjects completed the study, the completion rate was 98.0%. Three-day (24-hour per day) dietary recalls and weighting methods were conducted to collect information about all the foods and condiments consumed by the subjects. Individual dietary sodium intake was calculated, the differences of dietary sodium intake among subjects with different characteristics were analyzed, and the proportions of different dietary sodium resources were also analyzed.</p><p><b>RESULTS</b>The amount of individual dietary sodium intake was 5745.0 (95%CI:5427.6-6062.5) mg/d in Shandong; 6147.4 (95%CI: 5823.8-6471.0) mg/d for male residents, 5339.3 (95%CI:5005.8-5672.8) mg/d for female residents. There was a significant difference between males and females (F = 75.22, P < 0.01). The amount of individual dietary sodium intake was 5910.1 (95%CI:5449.3-6370.8) mg/d, 5341.6 (95%CI:5007.0-5676.1) mg/d for rural residents and urban residents respectively, and there was also a significant difference (F = 5.53, P < 0.05). The amount of condiment sodium intake was 4640.3 (95%CI:4360.2-4920.4) mg/d, which was the largest contributor to sodium intake, accounting for 80.8% (95%CI:79.9%-81.6%) of total intake. Sodium intake from cereals was 650.7 (95%CI: 590.5-711.0) mg/d, accounting for 11.3% (95%CI:10.3%-12.3%) of total intake. Sodium intake from eggs was 118.9 (95%CI:95.2-142.6) mg/d, accounting for 2.1% (95%CI:1.6%-2.6%) of total intake. The amount of manufactured food sodium intake was 582.1(95%CI: 497.8-666.4) mg/d, accounting for 10.1% (95%CI:8.9%-11.4%) of total intake.</p><p><b>CONCLUSION</b>Sodium intakes remain high among residents of Shandong province, and sodium from condiments was the largest source of dietary sodium intake, sodium of manufactured food only accounting for small part.</p>
Subject(s)
Adolescent , Adult , Aged , Female , Humans , Male , Middle Aged , Young Adult , China , Condiments , Cross-Sectional Studies , Diet Surveys , Sodium, DietaryABSTRACT
<p><b>OBJECTIVE</b>To analyze the prevalence states of hypertension and prehypertension and to explore relevant influencing factors among adult residents in Shandong province.</p><p><b>METHODS</b>15 600 residents aged between 18 and 69 from 20 counties in Shandong province were selected by multiple stratified and clustered sampling method from July to September, in 2011, to acquire related information by questionnaire survey and physical measurement. The prevalence of hypertension and prehypertension was estimated by special statistic method used to deal with complex sampling data, and the relevant influencing factors were also analyzed.</p><p><b>RESULTS</b>A total of 15 350 subjects were actually completed the survey, with age at (41.4 ± 14.1) years old. The average systolic blood pressure and diastolic blood pressure were 121.1(95%CI: 119.7-122.4) and 78.8(95%CI: 77.8-79.9) mmHg (1 mmHg = 0.133 kPa) respectively. And also 3776 hypertension patients and 5721 subjects with prehypertension were detected, and the weighting prevalence of hypertension and prehypertension were 23.4% (95%CI: 20.9%-26.0%) and 37.1% (95%CI: 34.7%-39.5%) with adjustive prevalence at 20.7% and 36.5% respectively. The multiple SURVEYLOGISTIC analysis showed that age above 40 years old (OR = 3.24, 95%CI: 2.56-4.10), overweight(OR = 2.22, 95%CI: 1.70-2.89) and obesity(OR = 5.84, 95%CI: 3.54-9.66), smoking history(OR = 1.82, 95%CI: 1.03-3.23), constantly drinking (OR = 1.71, 95%CI: 1.08-2.70), diabetes (OR = 1.99, 95%CI: 1.29-3.07), abnormal TC(OR = 1.64, 95%CI: 1.24-2.17), abnormal TG(OR = 1.75, 95%CI: 1.24-2.48) and high 24 h urine Na/K ratio (OR = 1.05, 95%CI: 1.02-1.08) were risk factors of hypertension, while education equal to or above junior middle school (OR = 0.68, 95%CI: 0.52-0.89) was protective factor of hypertension; age above 40 years old (OR = 1.49, 95%CI: 1.15-1.91), overweight(OR = 1.76, 95%CI: 1.25-2.48) and obesity (OR = 3.50, 95%CI: 2.05-5.97), abnormal TC (OR = 1.54, 95%CI: 1.10-2.14), abnormal TG (OR = 1.79, 95%CI:1.25-2.56) and high 24 h urine Na/K ratio (OR = 1.02, 95%CI: 1.01-1.04) were risk factors of prehypertension, while female (OR = 0.41, 95%CI: 0.31-0.56) and education level equal to or above junior middle school (OR = 0.67, 95%CI: 0.52-0.87) were protective factors.</p><p><b>CONCLUSION</b>The hypertension, especially prehypertension tends to be at high prevalence states currently, which may be affected by many factors.</p>
Subject(s)
Adolescent , Adult , Aged , Female , Humans , Male , Middle Aged , Young Adult , China , Epidemiology , Cross-Sectional Studies , Hypertension , Epidemiology , Prehypertension , Epidemiology , Risk FactorsABSTRACT
<p><b>OBJECTIVE</b>To study the relationship between salt consumption and blood pressure among residents in Shandong province, and to provide basic information for guiding people to prevent hypertension by reducing salt intake.</p><p><b>METHODS</b>Using multi-stage stratified cluster random sampling method, 2 184 residents aged 18 to 69 were selected as the research subjects, which were extracted randomly from 20 counties in Shandong province in June, 2011. The blood pressure of the subjects were measured and weighted. Based on 72 h dietary recalls and weighing measurement, and according to the distribution of salt intake, the grouping cut-off points were 10, 14 and 18 g. The difference of subjects with different characteristics and systolic blood pressure, diastolic blood pressure and prevalence of hypertension by grouping salt intake and other characteristics were analyzed, and the relationship between salt intake and prevalence of hypertension were analyzed.</p><p><b>RESULTS</b>The total of 2 133 residents were involved finally, the completion rate was 97.7%. After the complex weighted, the systolic and diastolic blood pressure's means (95%CI value) of the subjects were 121.0 (119.5-122.5) mmHg (1 mmHg = 0.133 kPa) and 78.5(77.4-79.6) mmHg respectively, which were all elevated with increasing of salt consumption. The blood pressure of the subjects with salt intake <10 g was the lowest, which were 119.6 (116.9-122.4) mmHg and 77.5(76.2-78.7) mmHg respectively. The blood pressure of the subjects with salt intake ≥ 18 g was the highest, which were 122.3(120.1-124.5) mmHg and 79.6(78.2-80.9) mmHg respectively. The analysis results showed that, among residents with normal waistline, the prevalence of hypertension of people with salt intake ≥ 18 g was 1.70(95%CI:1.04-2.76) times compared to that of people who consumed less than 10 g salt per day.</p><p><b>CONCLUSION</b>The hypertension prevalence of Shandong province is quite high, and there is a relationship between salt consumption and blood pressure.</p>