Infant mortality | |||||
Live births (n) | Deaths (n) | Crude (n=2687) | Adjusted model 1* (n=2687) | Adjusted model 2† (n=2177) | |
OR (95% CI) | OR (95% CI) | OR (95% CI) | |||
Gestational week | |||||
37 | 98 326 | 233 | 2.20 (1.90 to 2.56) | 2.16 (1.86 to 2.51) | 1.70 (1.43 to 2.02) |
38 | 241 277 | 368 | 1.42 (1.25 to 1.61) | 1.42 (1.25 to 1.62) | 1.15 (1.00 to 1.34) |
39 | 448 264 | 530 | 1.10 (0.98 to 1.23) | 1.10 (0.98 to 1.23) | 1.05 (0.92 to 1.19) |
40 | 595 569 | 642 | 1.00 (Reference) | 1.00 ((Reference) | 1.00 (Reference) |
41 | 451 257 | 511 | 1.05 (0.94 to 1.18) | 1.04 (0.93 to 1.17) | 1.03 (0.91 to 1.18) |
42+ | 310 806 | 403 | 1.20 (1.06 to 1.36) | 1.15 (1.01 to 1.30) | 1.07 (0.93 to 1.23) |
Birth weight for GA percentiles | |||||
<3 | 62 635 | 202 | 2.82 (2.43 to 3.27) | 2.59 (2.23 to 3.01) | 2.13 (1.80 to 2.53) |
3–<10 | 151 558 | 280 | 1.61 (1.41 to 1.83) | 1.58 (1.38 to 1.79) | 1.46 (1.26 to 1.68) |
10–<25 | 321 184 | 409 | 1.11 (0.99 to 1.24) | 1.10 (0.98 to 1.23) | 1.08 (0.95 to 1.22) |
25–75 | 1 074 943 | 1234 | 1.00 (Reference) | 1.00 (Reference) | 1.00 (Reference) |
>75–90 | 321 668 | 336 | 0.91 (0.81 to 1.03) | 0.91 (0.80 to 1.02) | 0.87 (0.76 to 1.00) |
>90 to 97 | 150 183 | 146 | 0.85 (0.71 to 1.01) | 0.85 (0.71 to 1.00) | 0.79 (0.65 to 0.96) |
>97 | 63 328 | 80 | 1.10 (0.88 to 1.38) | 1.08 (0.86 to 1.36) | 1.06 (0.84 to 1.36) |
↵* Model 1 adjusts for year of birth and birth weight percentiles or gestational week.
↵† Model 2 additionally adjusts for mother's country of birth, education level, age, parity, smoking status in early pregnancy, pre-eclampsia, premature rupture of membranes, diagnosis of hypertension or diabetes, mode of delivery, year of delivery and infant's sex.