Table 4
Associations between exposure and last sex and pregnancy outcomes
| Exposure (superscript indicates group) | Unprotected last sex | Pregnancy | ||||
|---|---|---|---|---|---|---|
| % (n) | Unadjusted OR (95% CI) | Adjusted* OR (95% CI) | % (n) | Unadjusted OR (95% CI) | Adjusted* OR (95% CI) | |
| 1, Socioeconomic status group; 2, Expectation group; 3, Confidence group; 4, Knowledge group. | ||||||
| Attitude to school | p = 0.008 | p = 0.102 | p = 0.000 | p = 0.013 | ||
| Like | 12.44 (49) | 1 | 1 | 2.59 (35) | 1 | 1 |
| Ambivalent | 15.02 (38) | 1.26 (0.70,2.29) | 1.31 (0.76,2.27) | 1.96 (17) | 0.74 (0.42,1.28) | 0.65 (0.28,1.55) |
| Dislike | 22.09 (38) | 1.99 (1.25,3.17) | 1.77 (1.02,3.06) | 5.84 (25) | 2.32 (1.40,3.85) | 2.04 (0.97,4.26) |
| Non-privately owned accomodation1 | p = 0.055 | p = 0.119 | p = 0.013 | p = 0.013 | ||
| No | 13.98 (73) | 1 | 1 | 2.43 (43) | 1 | 1 |
| Yes | 18.93 (46) | 1.42 (0.99,2.04) | 1.38 (0.92,2.06) | 4.59 (27) | 1.97 (1.16,3.37) | 1.50 (0.80,2.80) |
| Neither parent in full time employment1 | p = 0.309 | p = 0.127 | p = 0.033 | p = 0.028 | ||
| No | 15.77 (109) | 1 | 1 | 2.63 (59) | 1 | 1 |
| Yes | 12.17 (14) | 0.73 (0.40,1.33) | 0.58 (0.29,1.16) | 4.18 (14) | 1.65 (1.04,2.61) | 1.93 (1.07,3.46) |
| Expectation of parenting by 202 | p = 0.004 | p = 0.632 | p = 0.0000 | p = 0.032 | ||
| No | 13.99 (68) | 1 | 1 | 2.52 (43) | 1 | 1 |
| Unsure | 13.73 (28) | 0.95 (0.66,1.38) | 0.89 (0.55,1.43) | 1.85 (12) | 0.73 (0.34,1.55) | 0.64 (0.26,1.56) |
| Yes | 22.31 (29) | 1.75 (1.24,2.45) | 1.23 (0.62,2.19) | 7.86 (22) | 3.29 (1.95,5.54) | 1.83 (1.01,3.33) |
| Lack of expectation of education/training at age 202 | p = 0.003 | p = 0.026 | p = 0.0000 | p = 0.032 | ||
| No | 13.85 (77) | 1 | 1 | 2.24 (44) | 1 | 1 |
| Unsure | 16.60 (40) | 1.24 (0.90,1.69) | 1.12 (0.72,1.75) | 4.42 (28) | 2.01 (1.26,3.19) | 1.73 (0.91,3.29) |
| Yes | 38.10 (8) | 3.90 (1.59,9.58) | 3.85 (1.25,11.87) | 11.36 (5) | 5.53 (2.56,11.93) | 4.89 (1.48,16.10) |
| Confidence in rejecting unwanted sex3 | p = 0.018 | p = 0.001 | p = 0.253 | p = 0.048 | ||
| ⩽Median score | 16.87 (68) | 1 | 1 | 2.69 (42) | 1 | 1 |
| >Median score | 14.14 (56) | 0.80 (0.67,0.96) | 0.78 (0.67,0.91) | 3.59 (35) | 1.14 (0.91,1.44) | 1.28 (1.00,1.63) |
| Confidence communicating about sex3 | p = 0.305 | p = 0.135 | p = 0.000 | p = 0.008 | ||
| ⩽Median score | 15.90 (69) | 1 | 1 | 1.83 (35) | 1 | 1 |
| >Median score | 15.07 (55) | 0.85 (0.63,1.16) | 0.80 (0.60,1.07) | 6.64 (42) | 2.33 (1.62,3.35) | 1.28 (1.00,1.63) |
| Knowledge of emergency contraception timing4 | p = 0.995 | p = 0.986 | p = 0.091 | p = 0.767 | ||
| No | 15.40 (59) | 1 | 1 | 2.44 (35) | 1 | 1 |
| Yes | 15.29 (65) | 1.00 (0.60,1.65) | 1.01 (0.56,1.80) | 3.45 (40) | 1.42 (0.95,2.12) | 1.08 (0.65,1.78) |
| Knowledge of contraception and sexual health service access4 | p = 0.934 | p = 0.979 | p = 0.015 | p = 0.170 | ||
| 0 | 14.29 (7) | 1 | 1 | 2.09 (5) | 1 | 1 |
| 1 | 13.99 (20) | 0.96 (0.43,2.14) | 0.87 (0.34,2.22) | 1.23 (8) | 0.59 (0.18,1.88) | 0.44 (0.13,1.49) |
| 2 | 16.28 (21) | 1.19 (0.52,2.72) | 1.00 (0.42,2.40) | 3.94 (16) | 1.97 (0.60,6.46) | 0.62 (0.16,2.34) |
| 3 | 15.61 (76) | 1.10 (0.50,2.42) | 0.98 (0.45,2.12) | 3.68 (48) | 1.85 (0.67,5.11) | 0.92 (0.33,2.54) |
