Table 2.
Outcome | Group | Rate |
RR (FM vs. reference group) |
OR (FM vs. reference group) |
aOR (FM vs. reference group)* |
||||
---|---|---|---|---|---|---|---|---|---|
% | 95 % CI | 95 % CI | 95 % CI | 95 % CI | |||||
Perinatal mortality |
FM | 0.49 | 0.38–0.59 | - | – | – | – | - | – |
NM | 0.32 | 0.31–0.33 | 1.50 | 1.20–1.88 | 1.51 | 1.20–1.88 | 1.43 | 1.14–1.79 | |
RM | 0.40 | 0.36–0.42 | 1.23 | 0.98–1.55 | 1.23 | 0.98–1.55 | 1.22 | 0.96–1.54 | |
SGA |
FM | 14.9 | 14.3–15.4 | – | – | – | – | – | – |
NM | 9.0 | 9.0–9.1 | 1.65 | 1.59–1.71 | 1.77 | 1.69–1.85 | 1.96 | 1.87–2.05 | |
RM | 12.8 | 12.6–12.9 | 1.17 | 1.13–1.22 | 1.20 | 1.15–1.26 | 1.30 | 1.24–1.36 | |
Preterm birth |
FM | 5.5 | 5.2–5.9 | – | – | – | – | – | – |
NM | 6.8 | 6.8–6.9 | 0.81 | 0.76–0.86 | 0.80 | 0.74–0.86 | 0.84 | 0.78–0.91 | |
RM | 6.7 | 6.6–6.8 | 0.83 | 0.77–0.88 | 0.81 | 0.76–0.87 | 0.86 | 0.80–0.92 | |
Emergency CS |
FM | 9.3 | 8.9–9.8 | – | – | ||||
NM | 7.9 | 7.8–8.0 | 1.19 | 1.13–1.25 | 1.21 | 1.14–1.27 | 1.71 | 1.62–1.81 | |
RM | 9.8 | 9.7–10.0 | 0.95 | 0.91–1.00 | 0.95 | 0.90–1.00 | 1.28 | 1.21–1.36 |
Adjusted for multiple births, maternal age and parity
SGA = Small for gestational age infant.
CS = Cesarean section.