| Objectives The research is based on the cross-sectional investigation, aiming to grasp the situation of local residents’ diets, hypertension and obesity, finding how the local flavor food intake contributes to the DRIs, discussing the relationship between the rate of local flavor food and tea intake and overweight/obesity, and blood pressure. The research provides reliable data for improving local residents’diet and promoting inhabitants’health conditions.Methods The research subjects are more than 40 years old, and have been lived in Huangshan City for more than 2 generations. The researcher uses the method of convenience sampling and selects 518 permanent local households from three districts and four counties in the area of Huangshan City. Each family is chosen one family number who is over 40 years old as a respondent in research. The research was carried out in October the 2014, adopting food frequency questionnaires to investigate respondents’ local flavor food intake frequency and intake, and then converted the investigation data into standard daily intake. In the questionnaire, the researcher selects demography data and grasps respondents’ diseases history, and measures height, blood pressure and waistline according to the uniformed standard.The researcher uses Epidata3.1 software to build up the data base, and adopts Excel Server 2010 nutrient analysis software and SPSS 17.0 statistical software to calculate nutrient daily intake and statistical analysis. Besides, the data employs percentiles to do the described analysis, and uses Pearson chi-square test to get the comparison of sample rate. Furthermore, Wilcoxon symbol rank sum test and unconditional dichotomy logistic regression analysis are applied in correlation analysis. The researcher uses Epidata3.1 software to build up the data base, and adopts Excel Server 2010 nutrient analysis software and SPSS 17.0 statistical software to calculate nutrient daily intake and statistical analysis. Besides, the data employs percentiles to do the described analysis, and uses Pearson chi-square test to get the comparison of sample rate. Furthermore, Wilcoxon symbol rank sum test and unconditional dichotomy logistic regression analysis are applied in correlation analysis.Results 1. In Huangshan City, dried mushrooms, fresh bamboo shoots, ham, bacon, dried bean curd, Chinese style baked roll and pastry are the most frequency intake food, which was eaten by local residences at least 3 times per month, taking up 46.1%,39.6%, 44.8%,47.0%,39.6%,45.0%, and 38.4% respectively. However, dried bamboo shoots, fiddlehead, agarics, bean curd, strong-smelling preserved bean curd, strong-smelling mandarin fish, Huimo crisp and pecan have low intake frequency. Tea drinking is a prevalent phenomenon in Huangshan district, nearly 65 percent local residences drink tea everyday, and they keen on the green tea. The intake of local flavor food makes certain contribution to DRIs. Bean products made by Huizhou methods contribute greatly in the consumption of beans food, which takes up 18.6%-31.0%in recommended intake of Chinese residents a balanced diet pagoda. The meat consumption takes second position, accounting for 16.5%-24.8%. The contribution rate of other kinds of food is relatively low. The local flavor food provide significantly iron element for the nutrient, peaking at 29.17 percent, and followed by protein, fat, dietary fiber, sodium Na and phosphorous, which take up 18.00%,14.00%-21.00%, 13.67%-16.40%,15.52%, and 14.76% respectively.2. Among the subjects, the respondents who have normal BMI occupy 65.1%, overweight subjects account for 22.4%, obesity respondents take up 4.2%. overweight/obesity subjects are mainly from the age of 50-70s. There is a significant differences between different age groups for the rate of overweight/obesity. Male respondents whose waistline is more 90 centimeters round and female respondents whose waistline is more 85 centimeters have higher rate of overweight/obesity than respondents who have normal waistline(p<0.01). Chi-squared test displays that the frequency intake of Chinese style baked roll influences the risk of overweight/obesity. The more Chinese style roll intake, the higher risks to have overweight or obesity (p<0.05). Drinking tea everyday may reduce the rate of overweight and obesity (p<0.05). The result of logistic regression analysis points out that with the increase intake of Chinese style baked roll, the danger of suffering overweight/obesity grows greater (OR>1). Other local flavor food has no influence on respondents’overweight/obesity.3. Among the respondents, the male subject who suffer high blood pressure take up 18.8 %, while female with high blood pressure occupy 22.1%, thus, the total prevalence rate is 20.3%. The chi-squared test illustrates that with the growth of age hypertension prevalence rate was significantly increased (p<0.001); respondents who are type abdominal obesity have more risks to suffer high blood pressure than subjects who have normal waistline (p<0.01); with the increase of BMI, the rate of high blood pressure rise simultaneously (p<0.05). The result of logistic regression analysis shows that the risks of high blood pressure are increased by the growth of age (OR>1), especially the respondents who are type abdominal obesity have higher risk to suffer high blood pressure (OR>1). However, intake frequency of local flavor and tea has no influences on high blood pressure.Conclusion Among the local flavor food, dried mushrooms, fresh bamboo shoots, ham, bacon, dried bean curd, Chinese style baked roll and Huizhou pastry occupy the relatively higher proportion in terms of food intake frequency and acceptable daily intake. In addition, green tea produced by Tunxi County plays the dominant role in the tea consumption. The intake frequency of Chinese style baked roll and tea have some influence on the local residences’overweight or obesity. However, The intake frequency of local flavor food and tea has little impact on the rate of high blood pressure. |
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