Secular trends in age at menarche in Norwegians born from 1840 to 2008.

IF 1.8 4区医学 Q2 ANTHROPOLOGY

Annals of Human Biology Pub Date : 2025-12-01 Epub Date: 2025-12-03 DOI:10.1080/03014460.2025.2589079

Ingvild Særvold Bruserud, Edda Greaker, Martin Flatø, Mathieu Roelants, Ninnie H B Oehme, Petur B Juliusson

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引用次数: 0

Abstract

Background: It is uncertain if age of menarche continues to decline. There has been no systematic meta-analysis of ages at menarche in Norway the past three decades.

Aim: To conduct a systematic review and meta-analysis to assess secular trends in menarcheal age in Norway.

Subjects and methods: A literature search was performed in PubMed, Web of Science, and Embase to identify studies including ages at menarche from healthy females. Re-analysis of data from 16 surveys were included together with 17 published studies in a meta-analysis using weighted regression analyses with fitted restricted cubic splines. Each study or dataset was given a random intercept to account for within-survey correlation.

Results: In total, 783,757 observations were included in the meta-analysis. Three distinct periods were identified. For women born 1840-1910, a large and stable decline with -0.14 to -0.20 years per decade (y/d) was observed, whilst in women born 1910-1950 this decline accelerated up to -0.30 y/d. The third period of women born 1950-2008 saw a small and stable decline with -0.06 to -0.08 y/d.

Conclusion: Age at menarche declined throughout the study period from 1840-2008, but more rapidly in girls born between 1910-1950. Data suggest an ongoing, modest decline.

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1840年至2008年出生的挪威人初潮年龄的长期趋势。

背景：月经初潮年龄是否持续下降尚不确定。在过去的30年里，挪威没有对初潮年龄进行系统的荟萃分析。目的：进行系统回顾和荟萃分析，以评估挪威月经初潮年龄的长期趋势。研究对象和方法：在PubMed、Web of Science和Embase中进行文献检索，以确定包括健康女性月经初潮年龄的研究。重新分析了16项调查的数据和17项已发表的研究，使用加权回归分析和拟合的限制性三次样条进行meta分析。每个研究或数据集都有一个随机截距，以说明调查内的相关性。结果：meta分析共纳入783,757项观察。确定了三个不同的时期。在1840-1910年出生的妇女中，观察到每十年-0.14至-0.20年（年/日）的大幅稳定下降，而在1910-1950年出生的妇女中，这种下降加速至-0.30年/日。出生在1950年至2008年的女性的第三个时期出现了小而稳定的下降，为-0.06至-0.08 y/d。结论：在1840-2008年的研究期间，初潮年龄下降，但在1910-1950年出生的女孩中，初潮年龄下降得更快。数据显示，这一数字正在温和下降。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Annals of Human Biology 生物-公共卫生、环境卫生与职业卫生

CiteScore

3.40

自引率

5.90%

发文量

审稿时长

1 months

期刊介绍： Annals of Human Biology is an international, peer-reviewed journal published six times a year in electronic format. The journal reports investigations on the nature, development and causes of human variation, embracing the disciplines of human growth and development, human genetics, physical and biological anthropology, demography, environmental physiology, ecology, epidemiology and global health and ageing research.