印度的BMI与认知之间的关联:来自印度长度衰老研究 (LASI) 的数据
Emma Nichols1,2, Alden L Gross3, Peifeng Hu4
1Center for Economic and Social Research, University of Southern California, 635 Downey Way, VPD, Los Angeles, CA, 90089, USA. emmanich@usc.edu.
BMC public health
|October 5, 2024
概括
体重不足的体重指数 (BMI) 与45岁以上的印度成年人认知功能低下有关. 超重和肥胖显示出积极的关联,但这些可能是由于混因素和反向因果关系.
科学领域:
- 老年学是指老年学的学科.
- 公共卫生 公共卫生
- 流行病学 流行病学
背景情况:
- 高体重指数 (BMI) 是已知的认知衰退风险因素,主要研究在高收入国家.
- 来自低收入和中等收入环境的证据是不一致的,潜在的偏见往往没有得到解决.
研究的目的:
- 调查印度老年人BMI类别与认知功能之间的关联.
- 在横截面数据中探索潜在的偏差,例如混和反向因果关系.
主要方法:
- 利用了来自印度长度衰老研究 (LASI) 的数据,其中有56,753名45岁以上的参与者.
- 雇员调查加权线性回归,按性别分层,控制人口,SES和健康因素.
- 应用权重,修剪和样本限制以解决潜在的偏差.
主要成果:
- 体重不足的BMI与男性和女性的认知分数明显较低有关.
- 超重和肥胖的BMI与更高的认知分数有关,特别是在女性中.
- 这些积极的关联在城市环境和受过高等教育的人群中减弱.
结论:
- 体重不足的BMI是印度老年人认知障碍的危险因素,可能表明营养不良或一生的劣势.
- 在低收入和中等收入环境中观察到较高的BMI和认知之间的积极关联,可以通过未测量的混和反向因果关系来解释.
- 需要进行纵向研究来澄清这些关系,并消除偏见.
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