Sibling relatedness and pubertal development in girls and boys: A population-based cohort study

IF 4.3 3区材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC ACS Applied Electronic Materials Pub Date : 2024-08-23 DOI:10.1016/j.annepidem.2024.08.004

Katrine Andersen MSc , Kathrine Wiell Rothausen MSc , Siri Eldevik Håberg PhD , Mikko Myrskylä PhD , Cecilia Høst Ramlau-Hansen PhD , Anne Gaml-Sørensen PhD

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Abstract

Purpose

To investigate the association between sibling relatedness and pubertal development in girls and boys.

Methods

This cohort study consisted of 10,657 children from the Puberty Cohort, Denmark. Information on sibling relatedness was obtained by self-report. Information on pubertal markers was obtained half yearly from age 11 and throughout puberty. Mean age difference at attaining pubertal markers was estimated using interval-censored regression models according to sibling relatedness (full, half and/or step siblings; half and/or step siblings; no siblings; relative to full siblings).

Results

Girls with both full, half and/or step siblings (−1.2 (CI 95 %: −2.5; 0.1) months), only half- and/or stepsiblings (−2.2 (CI 95 %: −3.7; −0.7) months), and no siblings (−5.5 (CI 95 %: −8.5; −2.5) months) entered puberty earlier than girls with full siblings. Boys with full, half and/or step siblings (−1.4 (CI 95 %: −2.7; −0.1) months), only half and/or step siblings (−1.2 (CI 95 %: −3.0; 0.6) months), and no siblings (−4.5 (CI 95 %: −8.8; −0.3) months) entered puberty earlier than boys with full siblings.

Conclusions

Children with sibling relatedness other than full siblings entered puberty earlier than their peers with full siblings even after adjustment for parental cohabitation status, childhood body mass index and childhood internalizing and externalizing symptoms.

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女孩和男孩的兄弟姐妹关系与青春期发育：一项基于人口的队列研究。

目的：研究女孩和男孩的兄弟姐妹关系与青春期发育之间的关系：这项队列研究包括来自丹麦青春期队列的 10657 名儿童。有关兄弟姐妹关系的信息通过自我报告获得。有关青春期标志物的信息从 11 岁起每半年采集一次，并贯穿整个青春期。根据兄弟姐妹关系（全兄妹、半兄妹和/或继兄/或继妹；半兄妹和/或继兄/或继妹；无兄弟姐妹；相对于全兄妹），采用间隔删失回归模型估算了达到青春期指标的平均年龄差异：结果：与有完整兄弟姐妹、同父异母和/或继父继母的女孩（-1.2（CI 95%：-2.5；0.1）个月）、只有同父异母和/或继父继母的女孩（-2.2（CI 95%：-3.7；-0.7）个月）和没有兄弟姐妹的女孩（-5.5（CI 95%：-8.5；-2.5）个月）相比，有完整兄弟姐妹的女孩更早进入青春期。与有完整兄弟姐妹的男孩相比，有完整、同父异母和/或继父继母兄弟姐妹的男孩（-1.4 (CI 95%: -2.7; -0.1)个月）、只有同父异母和/或继父继母兄弟姐妹的男孩（-1.2 (CI 95%: -3.0; 0.6)个月）和没有兄弟姐妹的男孩（-4.5 (CI 95%: -8.8; -0.3)个月）进入青春期的时间更早：结论：即使在调整了父母同居状况、儿童期体重指数以及儿童期内化和外化症状后，有兄弟姐妹关系（非全兄弟姐妹关系）的儿童仍比有全兄弟姐妹关系的儿童更早进入青春期。

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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