Table 2. Results from Cox regression models comparing the hazard of second pregnancy among Child Support Grant recipients relative to non-recipients, in a cohort of 4845 women in Agincourt, South Africa, 1998–2008.
Model | HR | 95% CI | p-value |
---|---|---|---|
Full cohort (n = 4845) | |||
Unadjusted | 0.72 | 0.65, 0.79 | <0.0001 |
Adjusted 1 | 0.66 | 0.58, 0.75 | <0.0001 |
MSM | 0.65 | 0.58, 0.75 | <0.0001 |
Under 21 years 2 (n = 2110) | |||
Unadjusted | 0.70 | 0.60, 0.82 | <0.0001 |
Adjusted 1 | 0.60 | 0.50, 0.72 | <0.0001 |
21 years or older 2 (n = 2735) | |||
Unadjusted | 0.73 | 0.64, 0.84 | <0.0001 |
Adjusted 1 | 0.72 | 0.61, 0.86 | <0.0001 |
1Adjusted for age (coded with a restricted cubic spline with five knots), education (coded, in years, with a restricted cubic spline with five knots), former refugee status (coded as a dichotomous variable), household wealth (coded with a restricted cubic spline with five knots), and calendar year of birth of first child (coded with a restricted cubic spline with five knots)
2Age at birth of first child
HR = Hazard Ratio; CI = Confidence Interval; MSM = Marginal Structural Model