All | Boys | Girls | ||||
Crude | Adjusted† | Crude | Adjusted† | Crude | Adjusted† | |
Assisted conception | 1.25 (1.09 to 1.43) | 1.13 (0.97 to 1.31) | 1.18 (1.01 to 1.37) | 1.07 (0.91 to 1.27) | 1.55 (1.14 to 2.10) | 1.32 (0.93 to 1.88) |
IVF | 1.18 (0.96 to 1.44) | 1.04 (0.83 to 1.31) | 1.15 (0.92 to 1.44) | 1.02 (0.79 to 1.32) | 1.23 (0.75 to 2.03) | 1.02 (0.57 to 1.81) |
OI | 1.31 (1.10 to 1.56) | 1.20 (0.99 to 1.44) | 1.20 (0.99 to 1.47) | 1.12 (0.91 to 1.38) | 1.80 (1.24 to 2.61) | 1.56 (1.03 to 2.36) |