ABSTRACT
Objective To analyze the fertility rate and to estimate the future population size of Shaanxi province,based on data from the sixth national population census.Methods Fertility rate curve was used to analyze the fertility model and the abbreviated life table.The actual fertility rate was used as the main way to predict the future population size.General fertility rate was analyzed by factor analysis approach.Results The total fertility rate of Shaanxi province was 1.05 in 2010 while age-specific fertility rate contributed 101.27％ to the general fertility rate.The expected population sizes would be 38 122 474 in 2015,38 432 931 in 2020 and 38 121 904 in 2025 respectively.Conclusion Birthrate would become lower and the population size appearing a negative increase in the year 2020,in Shaanxi province.
ABSTRACT
Objective To evaluate the diet quality and the relative factors among rural residents in Hanzhong,Shaanxi province.Methods A cross-sectional survey on dietary status together with a semi-quantitative food frequency questionnaire were conducted on rural residents aged from 18 to 80 in Hanzhong of Shaanxi in 2010.Diet quality was evaluated by using the Chinese Diet Balance Index (CDBI) scoring and evaluating system.Linear regression models were developed to identify factors that influencing the status of under/over intake.Results 2748 rural residents were investigated with the average daily intake of grains,beans,heavily salted vegetables,plant oil,nuts and salt.Results showed that they were higher than average level of Chinese rural residents' (P＜0.01).80％ of the residents having their daily intake of grains,oil and salt exceeded,while animal food,diary food,egg,vegetable and firuits were lower (P＜0.01) than the RNIs.However,there was under intake noticed to some extent in some areas.The average values of DBI_LBS and DBI_HBS were 22.8 and 9.8.The proportions of moderate under intake (20＜DBI_LBS≤40) and moderate over intake (10＜DBI_HBS≤20) were 62.6％ and 48.0％.The main factors that influenced the dietary under-intake were education level,fortune index,hypertension,physical activity,and time to watch television.The main factors that affected the over-intake of diet were sex,age,number of family numbers,intensity of labor,time to sleep,smoking and drinking habits.Conclusion The main diet problem among the rural residents was under-dietary-intake,with over-intake to some extents,suggesting that it was necessary to strength the specific intervention program,to improve the diet quality in the residents of Hanzhong area.
ABSTRACT
Objective To investigate the relationship between dietary patterns and hypertension in Hanzhong city of Shaanxi province.Methods A cross-sectional survey on dietarypattern and hypertension together with a semi-quantitative food frequency questionnaire was conducted among rural residents aged from 18 to 80 in Hanzhong of Shaanxi province in 2010.Factor analysis by SPSS was used to identify food patterns based on the frequency of food.Logistic regression was used to analyze the relationship between dietary patterns and hypertension.Results 2929 rural residents were investigated with an average age as 50.0 years old and average schooling-years as 6.8.The prevalence rate of hypertension was 34.3％,with 35.4％ in males and 33.7％ in females.Among 29 kinds of food under investigation,only 11 kinds with the frequencies of consumption more than 1 time per week.Four main factors were derived as four dietary patterns by factor analysis and they were diversity dietary pattern,alcohol dietary pattern,beverage dietary pattern and simple dietary pattern.Among them,the balanced dietary pattern was significantly associated with hypertension.All the participants were categorized into 4 groups (Q1-Q4) according to their factor scores,quartile with Q1 as a reference.The residents who were more closer to having balance dietary pattern,were under less risk of suffering from hypertension after controlling for age,sex,BMI,education and income.Compared to Q1,the Q4 had lower risk of hypertension (OR=0.59,95％CI:0.44-0.77) for the balanced pattern.Conclusion Dietary pattern could be related to the prevalence of hypertension.A rational diet with diversity of foods should be suggested as one of the major measures for the prevention of hypertension.