Geary Rebecca S, Tanton Clare, Erens Bob, Clifton Soazig, Prah Philip, Wellings Kaye, Mitchell Kirstin R, Datta Jessica, Gravningen Kirsten, Fuller Elizabeth, Johnson Anne M, Sonnenberg Pam, Mercer Catherine H
Institute for Global Health, University College London, London, United Kingdom.
Department of Health Services Research & Policy, London School of Hygiene & Tropical Medicine, London, United Kingdom.
PLoS One. 2018 Jan 2;13(1):e0189607. doi: 10.1371/journal.pone.0189607. eCollection 2018.
Sexual orientation encompasses three dimensions: sexual identity, attraction and behaviour. There is increasing demand for data on sexual orientation to meet equality legislation, monitor potential inequalities and address public health needs. We present estimates of all three dimensions and their overlap in British men and women, and consider the implications for health services, research and the development and evaluation of public health interventions.
Analyses of data from Britain's third National Survey of Sexual Attitudes and Lifestyles, a probability sample survey (15,162 people aged 16-74 years) undertaken in 2010-2012.
A lesbian, gay or bisexual (LGB) identity was reported by 2·5% of men and 2·4% of women, whilst 6·5% of men and 11·5% of women reported any same-sex attraction and 5·5% of men and 6·1% of women reported ever experience of same-sex sex. This equates to approximately 547,000 men and 546,000 women aged 16-74 in Britain self-identifying as LGB and 1,204,000 men and 1,389,000 women ever having experience of same-sex sex. Of those reporting same-sex sex in the past 5 years, 28% of men and 45% of women identified as heterosexual.
There is large variation in the size of sexual minority populations depending on the dimension applied, with implications for the design of epidemiological studies, targeting and monitoring of public health interventions and estimating population-based denominators. There is also substantial diversity on an individual level between identity, behaviour and attraction, adding to the complexity of delivering appropriate services and interventions.
性取向包含三个维度：性身份、性吸引力和性行为。为满足平等立法、监测潜在不平等现象以及满足公共卫生需求，对性取向数据的需求日益增加。我们呈现了英国男性和女性这三个维度及其重叠情况的估计数据，并探讨了其对卫生服务、研究以及公共卫生干预措施的开发与评估的影响。
对英国第三次全国性态度与生活方式调查的数据进行分析，该调查是在2010 - 2012年进行的概率抽样调查（15162名年龄在16 - 74岁之间的人）。
报告有女同性恋、男同性恋或双性恋（LGB）身份的男性占2.5%，女性占2.4%；报告有任何同性吸引力的男性占6.5%，女性占11.5%；报告有过同性性行为经历的男性占5.5%，女性占6.1%。这相当于英国约54.7万名16 - 74岁的男性和54.6万名女性自我认定为LGB，以及120.4万名男性和138.9万名女性有过同性性行为经历。在过去5年中有过同性性行为的人中，28%的男性和45%的女性认定为异性恋。
根据所应用的维度不同，性少数群体的规模存在很大差异，这对流行病学研究的设计、公共卫生干预措施的目标设定与监测以及基于人群的分母估计都有影响。在个体层面，身份、行为和吸引力之间也存在很大差异，这增加了提供适当服务和干预措施的复杂性。
