Ethnic minorities were less likely to identify as gay or lesbian than Whites (1.4% vs. 3.5%) but were more likely to prefer not to disclose their sexual orientation (7.5% vs 0.9%). Sexual minorities tended to concentrate more in certain parts of the country—in London especially, where 27% of gay men and lesbians, as well as 19% of bisexuals, took residence, compared to only 14% of heterosexuals. Employment status also correlated with sexual orientation, as more gay than straight men worked full-time (three-quarters v. 57%), and the same was true among women (lesbians: 58%, straight women: 41%). Similarly, gay men (73%) and lesbians (66%) were overrepresented among the upper classes (classes ABC1), though the difference between heterosexuals and bisexuals (54% v. 58%) was not statistically significant. LGB people—especially lesbians—also had on average higher educational achievement. The study argued for the need to provide strong anonymity to respondents in order to gauge the true size of the non-heterosexual population, as more LGB than heterosexual respondents indicated they would be less likely to disclose their true sexual orientation in a face-to-face interview than in a self-administered, online survey. 2014 In an anonymous online sex survey carried out by The Observer on the sex lives of the British, 4% of the 1,052 samples surveyed identified as gay or lesbian, and another 4% as bisexual. In a nationally representative Survation study of 1,003 British women, 92% identified as heterosexual, 1.6% as gay or lesbian, 3.5% as bisexual, 0.3% as other, and 2.6% refused to disclose their sexual orientation. Sexual orientation appeared to be linked with age. Millennial women, aged 18–34, were significantly more likely to identify as bisexual (6.6%) than women aged 35–54 (1.4%) or older women (0.7%). Age differences were smaller for lesbian identity, but the pattern was the same, with 1.9% younger women identifying as lesbian, compared with 1.6% of middle aged and 1.3% of older women. Heterosexual identity followed the opposite pattern, being highest among older women (95.3%) and lowest among Millennials (89.1%). Sexual identity was also strongly correlated with childlessness, with 9.6% of childless women identifying as gay or bisexual, compared with 3.6% of women with underage children, and 0.5% of women with adult children. 2015 In a YouGov survey of 1,632 adults, 5.5% identified as gay, 2.1% as bisexual, and 88.7% as heterosexual. Asked to place themselves on the Kinsey scale, 72% of all adults, and 46% of adults aged