Azadbakht Leila, Esmaillzadeh Ahmad
Department of Nutrition, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran.
Public Health Nutr. 2008 May;11(5):528-34. doi: 10.1017/S1368980007000882. Epub 2007 Sep 3.
To determine the correlates of central adiposity.
Population-based cross-sectional study.
A total of 926 women (aged 40-60 years) from all districts of Tehran.
Demographic data were collected and anthropometric indices were measured according to standard protocols. Dietary intakes were assessed by means of a semi-quantitative food-frequency questionnaire. The suggested cut-off point for waist-to-hip ratio (WHR>or=0.84) for Tehrani people, adjusted for their age group, was used to determine central adiposity. Logistic regression analysis was used to determine the correlates of WHR, which were adjusted for age, taking medications and body mass index (BMI). The components of dietary intake were determined by factor analysis. Pearson correlation was used to determine the association between the dietary components and WHR. Analysis of covariance was employed to compare the mean values of WHR in different lifestyle groups, with adjustment for BMI and age.
Mean WHR was 0.82 +/- 0.06. The possibility of being centrally obese was higher in women with light physical activity (odds ratio: 2.11; 95% confidence interval: 1.40-2.53), depressed women (1.36; 1.02-1.93), smokers (1.21; 1.02-1.56) and unemployed women (1.41; 1.13-1.72). Marriage (1.31; 1.10-1.82), menopause (1.22; 1.02-1.61), low vitamin C intake (2.31; 1.25-4.25) and low calcium intake (1.30; 1.07-3.78) were associated with central fat accumulation. Dairy consumption was inversely correlated with central fat accumulation (r = -0.2, P < 0.05).
Central adiposity is associated with poor lifestyle factors including low physical activity, depression, smoking, low intake of vitamin C, low intake of calcium and dairy products and high fat consumption. Thus lifestyle modifications should be encouraged to achieve a healthier body shape.
确定中心性肥胖的相关因素。
基于人群的横断面研究。
来自德黑兰所有地区的926名40至60岁女性。
收集人口统计学数据，并根据标准方案测量人体测量指标。通过半定量食物频率问卷评估饮食摄入量。采用根据德黑兰人群年龄组调整后的腰臀比（WHR≥0.84）建议切点来确定中心性肥胖。采用逻辑回归分析确定WHR的相关因素，并对年龄、服药情况和体重指数（BMI）进行调整。通过因子分析确定饮食摄入的组成部分。采用Pearson相关性分析确定饮食组成部分与WHR之间的关联。采用协方差分析比较不同生活方式组WHR的平均值，并对BMI和年龄进行调整。
平均WHR为0.82±0.06。轻度体力活动女性（比值比：2.11；95%置信区间：1.40 - 2.53）、抑郁女性（1.36；1.02 - 1.93）、吸烟者（1.21；1.02 - 1.56）和失业女性（1.41；1.13 - 1.72）发生中心性肥胖的可能性更高。婚姻（1.31；1.10 - 1.82）、绝经（1.22；1.02 - 1.61）、维生素C摄入量低（2.31；1.25 - 4.25）和钙摄入量低（1.30；1.07 - 3.78）与中心性脂肪堆积有关。乳制品消费与中心性脂肪堆积呈负相关（r = -0.2，P < 0.05）。
中心性肥胖与不良生活方式因素有关，包括体力活动不足、抑郁、吸烟、维生素C摄入量低、钙和乳制品摄入量低以及高脂肪消费。因此，应鼓励改变生活方式以塑造更健康的体型。
