[Analysis on influence factors of dietary supplement used in population aged above 45 years in Beijing].

OBJECTIVE: To explore influence factors of dietary supplement used in population aged above 45 years in Beijing. METHODS: Utilizing the data of the survey of dietary supplement (DS) used in Beijing in 2006 was to investigate the influence factors by using multi-factorial logistic regression analysis. RESULTS: All 2487 samples were included in the analysis. Sex, age, average income of each month for each member of the family, experiences of deficiency of nutrition, attitude to nutrition knowledge, attitude to the need of DS and city-or-rural resident had shown effects on DS using. The percentage of using DS in female was higher than that in male being 19.3% and 11.8% respectively. The percentage grew up as the age became older. The same trend appeared as the economic-status going up, but not as education level change. Use of DS was greater in urban population (16.9%) than in rural population (14.6%). The percentage of using DS in people who had or just been diagnosed as malnutrition/deficiency disease or chronic disease, or those who thought themselves having got these diseases only by their own feeling were higher than those did not. CONCLUSION: People the female, the elder, or those having higher income, having experiences of deficiency of nutrition, are more interested in nutrition knowledge, and more positive in need of DS and those living in rural should be the target population of nutrition education for DS use.

[Investigation of nutrition and feeding status among children under 2 years in Beijing].

OBJECTIVE: To investigate the nutrition status, breast feeding and complementary feeding among children under 2 years of age in Beijing. METHODS: A stratified cluster randomly sampling method was used. After having got the compliance a questionnaire survey was carried out to 422 children < 2 year-old in total 18 districts of Beijing. RESULTS: The average infant birth weight was 3325 g, the rate of weight (2500 g and > or = 4000 g were 2.8% and 13.0% respectively. The rate of exclusive breast-feeding, partial breast-feeding, bottle-feeding of infant under 4 months was 56.6%, 33.9% and 9.5% respectively. The average weaning time was 7.4 months. The rate of complementary feeding of infant up to 6 months was 99.4%. The average ages for addition of complementary feeding such as cereal, vegetable and fruit, egg, oil, nutrients in rural areas were later than those in urban. CONCLUSION: It is important to promote breast feeding and improve complementary feeding by education and intervention.