在美国,1950年至2005年间出生的人群中,月经周期和周期规律性
Zifan Wang1, Gowtham Asokan2, Jukka-Pekka Onnela2
1Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts.
JAMA network open
|May 29, 2024
概括
趋势显示,在美国,初潮较早,周期规律较长. 这些变化在少数群体中更为明显,可能会增加不良健康结果.
科学领域:
- 生殖健康 生殖健康
- 流行病学 流行病学
- 社会人口统计学 社会人口统计学
背景情况:
- 早期初潮与负面的健康结果有关.
- 趋势表明美国的初潮较早,社会人口统计学差异和身体质量指数 (BMI) 的数据有限.
- 时间到月经周期的规律性是一个研究不足的早期生活因素,对健康有影响.
研究的目的:
- 检查初潮和时间到规律性的时间趋势和差异.
- 调查生命早期的体重指数 (BMI) 作为这些趋势的潜在调解者.
主要方法:
- 一个基于移动应用的美国队列研究.
- 对71,341名参与者 (2019-2023) 的初经年龄和规律性时间的自我回忆数据的分析.
- 评估出生年份,社会人口统计因素和初经时的BMI.
主要成果:
- 初潮时的平均年龄从12.5年 (1950-1969) 降至11.9年 (2000-2005).
- 早期初潮的患病率增加,而晚期初潮的患病率减少.
- 在两年内,月经规律的时间显著减少.
- 较早初潮的趋势在种族/少数民族群体和社会经济地位较低的人群中更为明显.
- 身体质量指数 (BMI) 解释了46%的初潮时年龄的时间趋势.
结论:
- 在美国,出现了较早初潮和周期规律延迟的显著趋势.
- 这些趋势在少数群体和较低社会经济地位的人群中加剧.
- 这些转变可能会导致增加不良健康结果和健康差异.
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