Table 4.
Outcomes at follow-up 2. Values are numbers (percentages) unless stated otherwise
| Outcomes | Intervention group | Comparison group | Unadjusted odds ratio* (95% CI); P value | Adjusted odds ratio† (95% CI); P value | Weighted‡ adjusted odds ratio† (95% CI); P value |
|---|---|---|---|---|---|
| Heterosexual sex before age 16 | 294/537 (55) | 130/326 (40) | 1.82 (0.97 to 3.42); 0.06 | 1.51 (0.84 to 2.72); 0.16 | 1.79 (0.96 to 3.36); 0.07 |
| Of those with heterosexual experience: | |||||
| ≥2 sexual partners in previous 3 months | 101/343 (29) | 42/166 (25) | 1.23 (0.70 to 2.16); 0.46 | 1.03 (0.54 to 1.98); 0.91 | 1.16 (0.57 to 2.40); 0.67 |
| Used condoms less than half sexual encounters in previous 3 months | 69/276 (25) | 38/149 (26) | 0.97 (62 to 1.53); 0.91 | 0.99 (0.65 to 1.51); 0.95 | 1.03 (0.66 to 1.61); 0.90 |
| Cannabis used weekly or more in previous 3 months | 88/556 (16) | 38/338 (11) | 1.48 (0.71 to 3.11); 0.29 | 1.44 (0.72 to 2.89); 0.30 | 1.97 (0.93 to 4.17); 0.08 |
| Drunkenness monthly or more in previous 3 months | 216/557 (39) | 109/337 (32) | 1.32 (0.75 to 2.35); 0.39 | 1.07 (0.68 to 1.70); 0.76 | 1.20 (0.78 to 1.84); 0.39 |
| Truancy in previous 3 months | 58/270 (21) | 24/166 (15) | 1.62 (0.66 to 3.95); 0.28 | 1.53 (0.64 to 3.66); 0.33 | 1.82 (0.69 to 4.81); 0.22 |
| Temporary exclusion from school in previous 3 months | 43/320 (13) | 21/178 (12) | 1.16 (0.50 to 2.70); 0.73 | 1.00 (0.35 to 2.85); 0.99 | 1.09 (0.32 to 3.78); 0.88 |
| Currently not in education, employment, or training | 63/566 (11) | 35/338 (10) | 1.08 (0.52 to 2.24); 0.82 | 0.68 (0.34 to 1.36); 0.28 | 0.62 (0.29 to 1.34); 0.22 |
| Contact with police in previous 6 months | 196/553 (35) | 105/332 (32) | 1.19 (0.69 to 2.03); 0.52 | 0.87 (0.46 to 1.62); 0.65 | 0.90 (0.48 to 1.69); 0.75 |
| Official warnings or convictions in previous 6 months | 140/556 (25) | 61/335 (18) | 1.51 (0.83 to 2.76); 0.17 | 1.43 (0.82 to 2.51); 0.20 | 1.67 (0.90 to 3.13); 0.10 |
| Low self esteem (adapted Rosenberg scale) | 144/557 (26) | 92/337 (27) | 0.93 (0.57 to 1.52); 0.76 | 0.99 (0.63 to 1.56); 0.97 | 1.02 (0.62 to 1.67); 0.94 |
| Often worry in previous few weeks | 396/556 (71) | 251/337 (74) | 0.85 (0.62 to 1.15); 0.29 | 1.01 (0.76 to 1.36); 0.90 | 1.09 (0.81 to 1.47); 0.56 |
| Difficulty in discussing personal things with close friend | 59/557 (11) | 43/338 (13) | 0.81 (0.42 to 1.58); 0.53 | 0.80 (0.43 to 1.49); 0.48 | 0.75 (0.35 to 1.60); 0.45 |
| Teenage pregnancy since baseline (young women)§ | 38/244 (16) | 13/202 (6) | 2.68 (1.35 to 5.32); <0.01 | 3.55 (1.32 to 9.50); 0.01¶ | 5.48 (2.18 to 13.75); <0.01¶ |
| Caused a teenage conception since baseline (young men) | 37/348 (11) | 17/160 (11) | 1.00 (0.44 to 2.28); 0.99 | 0.86 (0.35 to 2.07); 0.72 | 1.18 (0.45 to 3.09); 0.73 |
*Adjusted for cluster only.
†Adjusted for cluster, age at follow-up, gender, pupil referral unit attendance, and baseline variables: tenure, dislike of school, truancy, temporary and permanent exclusions from school, having had heterosexual sex, frequency of drunkenness, ethnicity, and living in lone parent household or one where no adults were working.
‡Analysis weighted for missing returns at this follow-up and adjusted for above factors.
§Includes pregnancies reported at follow-up 2 plus those reported by young women at follow-up 1 who did not complete follow-up 2.
¶In addition to adjustments mentioned above, this model also adjusts for pregnancy pre-baseline and ward level rates of teenage pregnancy (derived from young woman’s postcode area).