Reporting of demographics, behaviours and attitudinal outcomes for the common birth cohort by gender
| Natsal-2 (%) | Natsal-3 (%) | AOR (95% CI)* | AOR (95% CI)† | |||
|---|---|---|---|---|---|---|
| Men | ||||||
| Demographic | ||||||
| Ethnicity: non-white | 8.8 | 14.6 | 1.74 | (1.45 to 2.09) | − | − |
| Last school up to age 16 was single-sex | 14.8 | 16.7 | 1.20 | (1.02 to 1.40) | 1.16 | (0.98 to 1.36) |
| Completed continuous full-time education at age 16‡ | 45.4 | 42.0 | 0.89 | (0.79 to 1.01) | 0.94 | (0.83 to 1.07) |
| Parents were self-employed at age 14 | 18.2 | 17.6 | 0.95 | (0.82 to 1.11) | 0.92 | (0.79 to 1.07) |
| Behaviour | ||||||
| Had heterosexual intercourse before 16 | 27.3 | 26.5 | 0.96 | (0.84 to 1.09) | 1.00 | (0.88 to 1.14) |
| Same-sex intercourse before 1999 | 4.3 | 4.2 | 1.01 | (0.77 to 1.32) | 1.02 | (0.78 to 1.34) |
| Partner was more willing at first heterosexual intercourse§ | 6.0 | 4.8 | 0.79 | (0.60 to 1.02) | 0.78 | (0.60 to 1.02) |
| Recently met partner at first heterosexual intercourse§¶ | 20.2 | 19.0 | 0.92 | (0.79 to 1.07) | 0.93 | (0.80 to 1.07) |
| No contraception at first sex§¶ | 22.5 | 25.4 | 1.20 | (1.04 to 1.38) | 1.18 | (1.02 to 1.36) |
| Had a child before age 20** | 3.6 | 3.4 | 0.96 | (0.69 to 1.33) | 0.98 | (0.70 to 1.37) |
| Did not discuss sex with parents around age 14 | 74.3 | 75.6 | 1.09 | (0.95 to 1.25) | 1.06 | (0.92 to 1.21) |
| Attitudes†† | ||||||
| Non-exclusivity in marriage: always wrong | 51.4 | 56.9 | 1.17 | (1.04 to 1.31) | 1.16 | (1.03 to 1.30) |
| One-night-stands: not wrong at all | 27.5 | 19.1 | 0.60 | (0.54 to 0.66) | 0.63 | (0.57 to 0.70) |
| Same-sex partnerships (male): not wrong at all | 36.4 | 43.9 | 1.36 | (1.22 to 1.51) | 1.48 | (1.33 to 1.65) |
| Same-sex partnerships (female): not wrong at all | 41.4 | 47.9 | 1.28 | (1.15 to 1.42) | 1.40 | (1.26 to 1.56) |
| Women | ||||||
| Demographic | ||||||
| Ethnicity: non-white | 8.6 | 13.5 | 1.63 | (1.37 to 1.93) | – | – |
| Last school up to age 16 was single-sex | 16.6 | 18.5 | 1.17 | (1.04 to 1.33) | 1.12 | (0.99 to 1.27) |
| Completed continuous full-time education at age 16‡ | 42.6 | 40.3 | 0.95 | (0.86 to 1.06) | 0.99 | (0.89 to 1.10) |
| Parents were self-employed at age 14 | 19.1 | 17.5 | 0.88 | (0.77 to 1.00) | 0.84 | (0.74 to 0.96) |
| Behaviour | ||||||
| Had heterosexual intercourse before 16 | 20.7 | 18.7 | 0.85 | (0.76 to 0.95) | 0.88 | (0.79 to 0.98) |
| Same-sex intercourse before 1999 | 3.9 | 3.8 | 1.00 | (0.79 to 1.26) | 1.02 | (0.81 to 1.29) |
| Partner was more willing at first heterosexual intercourse§ | 22.6 | 17.2 | 0.71 | (0.63 to 0.81) | 0.69 | (0.61 to 0.78) |
| Recently met partner at first heterosexual intercourse§¶ | 9.2 | 8.1 | 0.86 | (0.72 to 1.03) | 0.84 | (0.70 to 1.01) |
| No contraception at first sex§¶ | 20.6 | 19.9 | 0.98 | (0.87 to 1.11) | 0.95 | (0.84 to 1.08) |
| Had a child before age 20** | 14.2 | 11.5 | 0.78 | (0.66 to 0.92) | 0.77 | (0.65 to 0.90) |
| Did not discuss sex with parents at age 14 | 56.9 | 63.8 | 1.37 | (1.24 to 1.52) | 1.34 | (1.21 to 1.48) |
| Started menstruating before 12 | 18.1 | 18.0 | 0.99 | (0.88 to 1.12) | 1.00 | (0.89 to 1.12) |
| Attitudes†† | ||||||
| Non-exclusivity in marriage: always wrong | 60.0 | 65.0 | 1.19 | (1.08 to 1.31) | 1.17 | (1.06 to 1.29) |
| One-night-stands: not wrong at all | 12.5 | 12.2 | 0.87 | (0.79 to 0.95) | 0.91 | (0.83 to 0.99) |
| Same-sex partnerships (male): not wrong at all | 52.2 | 63.5 | 1.51 | (1.38 to 1.67) | 1.64 | (1.48 to 1.81) |
| Same-sex partnerships (female): not wrong at all | 52.0 | 63.5 | 1.52 | (1.39 to 1.68) | 1.65 | (1.49 to 1.82) |
*OR for reporting in Natsal-3 relative to Natsal-2, adjusted for year of birth.
†OR adjusted for year of birth and ethnicity (six categories).
‡Participants born before 1983.
§Participants who had first heterosexual intercourse before 1999.
¶Excluded participants whose first sex was forced.
**Participants born before 1980.
††Ordered categorical responses modelled under the assumption of proportional odds.