Gender Difference on the Association between Dietary Patterns and Obesity in Chinese Middle-Aged and Elderly Populations
2016
Ya-Qun Yuan | Fan Li | Pai Meng | Jie You | Min Wu | Shu-Guang Li | Bo Chen
Dietary patterns are linked to obesity, but the gender difference in the association between dietary patterns and obesity remains unclear. We explored this gender difference in a middle-aged and elderly populations in Shanghai. Residents (n = 2046: aged ≥45 years: 968 men and 1078 women) who participated in the Shanghai Food Consumption Survey were studied. Factor analysis of data from four periods of 24-h dietary recalls (across 2012–2014) identified dietary patterns. Height, body weight, and waist circumference were measured to calculate the body mass index. A log binominal model examined the association between dietary patterns and obesity, stratified by gender. Four dietary patterns were identified for both genders: rice staple, wheat staple, snacks, and prudent patterns. The rice staple pattern was associated positively with abdominal obesity in men (prevalence ratio (PR) = 1.358: 95% confidence interval (CI) 1.132–1.639: p = 0.001), but was associated negatively with general obesity in women (PR = 0.745: 95% CI: 0.673–0.807: p = 0.031). Men in the highest quartile of the wheat staple pattern had significantly greater risk of central obesity (PR = 1.331: 95% CI: 1.094–1.627: p = 0.005). There may be gender differences in the association between dietary patterns and obesity in middle-aged and elderly populations in Shanghai, China.
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