Descriptive statistics for study variables (unweighted), according to sexual orientation identity in 2009, N(%)
| Study variables (N=7698)* | Lesbian or gay (n=88, 1.1%) | Bisexual (n=146, 1.9%) | Heterosexual (n=7464, 97.0%) | p Value† | p Value‡ | p Value§ |
|---|---|---|---|---|---|---|
| Female | 33 (37.5) | 111 (76.0) | 3792 (50.8) | 0.001 | 0.014 | <0.001 |
| Ethnic minority¶ | 12 (13.6) | 12 (8.2) | 2112 (28.3) | <0.001 | 0.003 | <0.001 |
| Parental education (less than secondary) | 13 (14.8) | 26 (17.8) | 1715 (23.0) | 0.02 | 0.07 | 0.14 |
| Parental occupation (routine or unemployed) | 10 (11.4) | 18 (12.3) | 900 (12.1) | 0.97 | 0.84 | 0.92 |
| History of cigarette smoking (age 15/16) | 35 (39.8) | 60 (41.1) | 1649 (22.1) | <0.001 | <0.001 | <0.001 |
| Alcohol drinking >2 days/week (age 18/19) | 33 (37.5) | 38 (26.0) | 1467 (19.7) | <0.001 | <0.001 | 0.057 |
| Risky single occasion drinking (age 18/19) | 40 (45.5) | 48 (32.9) | 1985 (26.6) | <0.001 | <0.001 | 0.090 |
*Analytic sample (N=7698) comprises participants with available data on age, sex, ethnic group, parental education, occupational social class, smoking history and alcohol use.
†p Value for lesbian/gay/bisexual versus heterosexual.
‡p Value for gay/lesbian versus heterosexual.
§p Bisexual versus heterosexual.
¶Unweighted frequency (ethnic minority groups were over-sampled).