Sexual orientation disparities in weight status in adolescence: findings from a prospective study.

Sexual orientation disparities in weight status in adolescence: findings from a prospective study.
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DOI:
10.1038/oby.2009.72
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发表时间:
2009-09
期刊:
影响因子:
6.9
通讯作者:
Field, Alison E.
Field, Alison E.
中科院分区:
医学2区
文献类型:
--
作者:
Austin, S. Bryn;Ziyadeh, Najat J.;Corliss, Heather L.;Haines, Jess;Rockett, Helaine R.;Wypij, David;Field, Alison E.

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越来越多的成年女性研究表明,超重的差异对女同性恋和双性恋女性产生了不利影响,但很少有研究探讨男性或青少年体重状况中与性取向相关的模式。我们利用“今日成长研究”(一项针对美国青少年的大型前瞻性队列)中 13,785 名青少年女性和男性的 56,990 项观察结果,研究了体重指数(BMI;kg/m2)、BMI Z 分数和超重方面的性取向群体趋势。参与者提供了来自 1998 年至 2005 年六轮问卷数据收集的自我报告信息。性别分层线性回归模型用于估计 BMI 和 BMI Z 分数,并使用修正的泊松回归模型来估计超重的风险比 (RR),控制年龄和种族/民族,以异性恋为参照组。在女性中,我们观察到所有性取向少数群体的体重指数相对于异性恋同龄人相当一致地升高。相比之下,在男性中,我们记录了性取向与年龄的相互作用,表明相对于性取向少数群体,异性恋者从青春期早期到晚期,BMI随着年龄的增长而急剧增加。需要进行更多的前瞻性研究来了解观察到的性取向差异的决定因素,并为适当的预防和治疗干预措施提供信息。超重对健康的长期影响是有据可查的,随着时间的推移,超重可能会对超重人群造成巨大损失。
A growing number of studies among adult women have documented disparities in overweight adversely affecting lesbian and bisexual women, but few studies have examined sexual orientation-related patterns in weight status among men or adolescents. We examined sexual orientation group trends in body mass index (BMI; kg/m2), BMI Z-scores, and overweight using 56,990 observations from 13,785 adolescent females and males in the Growing Up Today Study, a large prospective cohort of U.S. youth. Participants provided self-reported information from six waves of questionnaire data collection from 1998 to 2005. Gender-stratified linear regression models were used to estimate BMI and BMI Z-score and modified Poisson regression models to estimate risk ratios (RR) for overweight, controlling for age and race/ethnicity, with heterosexuals as the referent group. Among females, we observed fairly consistently elevated BMI in all sexual orientation minority groups relative to heterosexual peers. In contrast, among males we documented a sexual-orientation-by-age interaction indicating steeper increases in BMI with age from early to late adolescence in heterosexuals relative to sexual orientation minorities. Additional prospective research is needed to understand the determinants of observed sexual orientation disparities and to inform appropriate preventive and treatment interventions. The long-term health consequences of overweight are well-documented and over time are likely to exact a high toll on populations with elevated rates.
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