Characteristic | Pre-EENC (Nov 2013–Oct 2014), n (%) | Post-EENC (Nov 2014–Oct 2015), n (%) | Relative risk (95% CI) | P value |
All live births delivered by caesarean section | 7928 | 8999 | ||
Male | 4271 (53.9) | 4860 (54.0) | 1.00 (0.97 to 1.03) | 0.86 |
Gestational age | ||||
<28 weeks | 15 (0.2) | 22 (0.2) | 1.29 (0.67 to 2.49) | 0.44 |
28–<32 weeks | 68 (0.9) | 84 (0.9) | 1.09 (0.79 to 1.50) | 0.60 |
32–<37 weeks | 412 (5.2) | 467 (5.2) | 1.00 (0.88 to 1.14) | 0.98 |
≥37 weeks | 7433 (93.7) | 8426 (93.6) | 1.00 (0.99 to 1.01) | 0.74 |
Birth weight | ||||
<1000 g | 16 (0.2) | 26 (0.3) | 1.43 (0.77 to 2.67) | 0.25 |
1000–1499 g | 75 (1.0) | 54 (0.6) | 0.63 (0.45 to 0.90) | 0.01 |
1500–2499 g | 501 (6.3) | 699 (7.8) | 1.23 (1.10 to 1.37) | <0.001 |
≥2500 g | 7336 (92.5) | 8220 (91.3) | 0.99 (0.98 to 1.00) | 0.005 |
Caesarean section births admitted to the NICU | 1324 (16.7) | 1065 (11.8) | 0.71 (0.66 to 0.76) | <0.001 |
Male | 653 (49.3) | 556 (52.2) | 1.06 (0.98 to 1.15) | 0.16 |
Newborns by gestational age | ||||
<28 weeks | 6 (40.0) | 7 (31.8) | 0.80 (0.33 to 1.90) | 0.6 |
28–<32 weeks | 60 (88.2) | 70 (83.3) | 0.94 (0.83 to 1.07) | 0.4 |
32–<37 weeks | 360 (87.3) | 355 (76.0) | 0.87 (0.82 to 0.93) | <0.001 |
≥37 weeks | 898 (12.1) | 633 (7.5) | 0.62 (0.56 to 0.68) | <0.001 |
Newborns by birth weight | ||||
<1000 g | 7 (43.7) | 7 (26.9) | 0.62 (0.27 to 1.43) | 0.2 |
1000–1499 g | 61 (81.3) | 48 (88.9) | 1.09 (0.95 to 1.26) | 0.2 |
1500–2499 g | 385 (76.8) | 342 (48.9) | 0.64 (0.58 to 0.70) | <0.001 |
≥2500 g | 871 (11.9) | 668 (8.1) | 0.68 (0.62 to 0.75) | <0.001 |
EENC, early essential newborn care; NICU, neonatal intensive care unit.