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Sexual orientation

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What to keep in mind when interpreting these statistics

Source and Sample Size

These figures are based on results from the Annual Population Survey (APS) which samples around 18,000 households in Wales every year. However, the sample sizes for people identifying as gay, lesbian or bisexual are relatively small and hence we have also produced analysis from a pooled dataset which combines 3 years of APS data.

Sexual identity estimates were previously produced from the Integrated Household Survey (IHS). IHS variables (including sexual identity) were added to the APS in 2014 and fully integrated into the survey in 2015. A consistent back series from 2012 and a comparison of the estimates produced from the IHS and the APS are available (external link).

Sexual Identity or Sexual Orientation?

Sexual orientation is an umbrella term which encompasses several dimensions including sexual identity, attraction and behaviour.

Self-perceived sexual identity is a subjective view of oneself. Essentially, it is about how a person views themselves, not what they do. It is about the inner sense of self, and perhaps sharing a collective social identity with a group of other people.

We have used the term sexual identity throughout this analysis as the APS uses the terminology outlined in the Government Statistical Service (GSS) Harmonised question for sexual identity (PDF) (external link). 

The Harmonised question on sexual identity is asked as an opinion question, it is up to respondents to decide how they define themselves in relation to the four response categories available. It is important to recognise that the question is not specifically about sexual behaviour or attraction, although these aspects might relate to the formation of identity. A person can have a sexual identity while not being sexually active. The "Other" option on the question is included to address the fact that not all people will consider they fall in the first three categories, that is, heterosexual or straight, gay or lesbian or bisexual.

The question is asked of respondents aged 16 years and over; it is not asked by proxy. Proxy interviews are defined as those where answers are supplied by a third party, who is usually a member of the respondent’s household.

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