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目的了解南京市城区居民膳食状况以及膳食模式与超重肥胖之间的关系。方法 2007年6—9月采用多阶段随机整群抽样法,对南京市2个城区7个社区3376名30岁以上常住居民进行调查。利用膳食平衡指数(DBI)构建膳食模式。结果超重肥胖患病率在性别(χ2=14.983,P=0.000)、年龄组(χ2=35.925,P=0.000)、受教育程度(χ2=23.946,P=0.000)及家庭总收入(χ2=16.979,P=0.000)之间差异均有统计学意义。经logistic回归分析,与理想膳食模式相比,非理想膳食模式中超重肥胖比例较高,但差异无统计学意义。按性别分层后,男性非理想模式中超重肥胖比例较高,是理想膳食模式的1.335倍(95%CI 1.003~1.777),差异有统计学意义(P=0.048),经多因素调整后差异亦有统计学意义(OR=1.339,95%CI1.004~1.786,P=0.047)。结论膳食模式与超重肥胖之间存在相关,理想膳食模式对控制人群的超重肥胖有指导意义。
Objective To understand the relationship between dietary patterns and overweight and obesity among urban residents in Nanjing. Methods From June to September in 2007, a multistage random cluster sampling method was used to investigate 3376 permanent residents over the age of 30 in 7 communities in two urban districts of Nanjing. Dietary Balance Index (DBI) is used to construct dietary patterns. Results The prevalence of overweight and obesity was significantly higher in sex (χ2 = 14.983, P = 0.000), in age group (χ2 = 35.925, P = 0.000) , P = 0.000) between the differences were statistically significant. Logistic regression analysis showed that the ratio of overweight and obesity was higher in non-ideal dietary patterns than in ideal dietary patterns, but the difference was not statistically significant. After sex stratification, the proportion of overweight and obesity in male non-ideal pattern was higher than that of ideal dietary pattern (1.335 times (95% CI 1.003-1.777), the difference was statistically significant (P = 0.048), after adjustment for multiple factors There was also statistical significance (OR = 1.339, 95% CI 1.004-1.786, P = 0.047). Conclusion There is a correlation between dietary patterns and overweight and obesity. The ideal dietary pattern is instructive in controlling overweight and obesity in the population.