Table 4. Weighted risk ratio (RR) and risk difference (RD) with 95% confidence intervals (CI) for the association between low attendance in school versus high attendance and having an age-disparate relationship stratified by time-varying age of the young woman***.
| Risk (%) | RR (95% CI)* | RD (%; 95% CI)** | |
|---|---|---|---|
| Unstratified association | 2.69 (1.92,3.77) | 13.0 (6.3,19.7) | |
|
| |||
| Stratified by Age | |||
| Age 13-14 | |||
| Low | 25.9 | 8.07 (3.40,19.19) | 22.7 (2.4,43.0) |
| High | 3.2 | 1 | 0 |
| Age 15-16 | |||
| Low | 9.2 | 1.33 (0.61,2.87) | 2.3 (-4.7,9.3) |
| High | 6.9 | 1 | 0 |
| Age 17-18 | |||
| Low | 27.7 | 2.52 (1.66,3.82) | 16.7 (5.9,27.5) |
| High | 11.0 | 1 | 0 |
| Age 19-23 | |||
| Low | 26.7 | 1.97 (0.95,4.09) | 13.2 (-4.1,30.5) |
| High | 13.6 | 1 | 0 |
*
Likelihood Ratio Test (LRT) for modification by age: chi2=10.67, DF=3, p-value=0.014;
**
Likelihood Ratio Test (LRT) for modification by age: chi2=8.38, DF=3, p-value=0.039;
***
Weighted for confounding using inverse probability of treatments weights including Age, intervention assignment, Orphan Status, SES, Alcohol Use, Depression, anxiety, prior age-disparate relationship
****
Weighted number of cases/ total exposed: Age 13- 14 N=34/881; Age 15-16 N=141/2156; Age 17-18 N=156/1296; Age 19-23 N=38/250.