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在姊妹研究中,体重循环和癌症风险
Victoria L Stevens1, Jessica Priest1, Jesse Wilkerson1
1Public Health and Scientific Research, DLH, Durham, NC.
American journal of epidemiology
|August 29, 2025
概括
蓄意减肥或重复减肥并不会增加癌症的风险. 事实上,它可能会降低乳腺癌的风险,特别是在肥胖的绝经后妇女身上.
科学领域:
- 癌症学
- 流行病学
背景情况:
- 据推测,重量循环 (故意减肥和重新增加) 会影响癌症的发展.
- 关于体重循环和癌症风险的现有流行病学研究产生了不同的结果.
研究的目的:
- 研究体重周期与癌症发病率之间的关系.
- 要确定体重循环是否会改变癌症的风险.
主要方法:
- 分析了包括45004名女性在内的姐妹研究队列.
- 通过自我报告的减肥和恢复≥20磅的情节来评估体重循环.
- 在11.6年的中位随访期内,考克斯比例危险回归模拟了癌症发病率.
主要成果:
- 在调整体重后,体重循环并没有增加任何癌症的风险.
- 在体重循环和整体癌症风险之间观察到显著的反向关联 (HR 6+ 发作: 0. 89).
- 体重循环显示与乳腺癌风险的反向关联 (HR 6+ 发作: 0. 82),特别是在肥胖的绝经后妇女中.
结论:
- 在考虑体重时,体重循环并不会增加癌症风险.
- 在特定小组中,频繁的体重循环可能与乳腺癌的风险降低有关.
- 需要进一步研究以了解这些反向关联背后的机制.
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