OBJECTIVE:Breast-feeding is associated with maternal health, such as electrolyte metabolism, lipid profile and body component change. The aim of this study was to evaluate the relationship between duration of breast-feeding and obesity in postmenopausal women. METHODS:We analyzed data from the Korea National Health and Nutrition Examination Survey (KNHANES) 2010-2012, a cross-sectional study in a Korean population. A total of 6621 postmenopausal women were analyzed. RESULTS:Body mass index and waist circumference were greater in women who had breast-fed for 6 months or more than in those who had not (BMI: 23.7±0.1 vs 24.5±0.1, P<0.0001; WC: 80.6±0.4 vs 82.8±0.3, P<0.001). This association persisted after adjustment for confounding factors (BMI: odds ratio[OR]1.54, 95% confidence interval[CI] 1.19-2.0; WC: OR1.67, 95% CI 1.29-2.17). The duration of breast-feeding tended to increase with increasing BMI and WC (P for trend, 0.001 for each). The proportions of women with greater BMI and WC increased with increasing duration of breast-feeding (27.3% in ≤6 months vs 41.2% in >18months, P<0.0001). CONCLUSION:The results of this study suggest that prolonged breast-feeding may be associated with greater BMI and WC among postmenopausal women.

译文

目的:母乳喂养与孕妇健康有关,例如电解质代谢,脂质分布和身体成分变化。这项研究的目的是评估绝经后妇女的母乳喂养时间与肥胖之间的关系。
方法:我们分析了2010-2012年韩国国民健康与营养检查调查(KNHANES)的数据,这是一项针对韩国人群的横断面研究。总共对6621名绝经后妇女进行了分析。
结果:母乳喂养6个月或更长时间的妇女的身体质量指数和腰围比没有母乳的妇女更大(BMI:23.7±0.1 vs 24.5±0.1,P <0.0001; WC:80.6±0.4 vs 82.8 ±0.3,P <0.001)。调整混杂因素(BMI:比值比[OR] 1.54,95%置信区间[CI] 1.19-2.0; WC:OR1.67,95%CI 1.29-2.17)后,这种关联仍然存在。母乳喂养的时间倾向于随着BMI和WC的增加而增加(趋势P,每种0.001)。 BMI和WC较高的女性比例随着母乳喂养时间的增加而增加(≤6个月为27.3%,而> 18个月为41.2%,P <0.0001)。
结论:这项研究的结果表明,延长母乳喂养可能与绝经后妇女的BMI和WC升高有关。

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