| Interpregnancy interval, in months | Model 1: Unadjusted | Model 2a | Model 3b |
|---|---|---|---|
| Estimated birthweight z‐score (95% CI) | |||
| <12 | −0.09 (−0.34, 0.17) | −0.07 (−0.35, 0.21) | −0.05 (−0.36, 0.26) |
| 12‐17 | −0.21 (−0.41, −0.01) | −0.14 (−0.35, 0.07) | −0.13 (−0.35, 0.09) |
| 18‐23 | 0.04 (−0.19, 0.27) | −0.00 (−0.23, 0.24) | −0.00 (−0.24, 0.24) |
| 24 or more | −0.21 (−0.36, −0.06) | −0.22 (−0.39, −0.06) | −0.23 (−0.40, −0.06) |
a
Adjusted for maternal age at last delivery, parity, smoking at time of conception, last pregnancy stillbirth or neonatal death, occupation, ability to raise 5000 NOK in 1 wk, rating of own/family wealth, education level.
b
Adjusted for all Model 2 covariates plus pregnancy intention.