Table 2.
H1 na = 211 |
H2 na = 693 |
H3 na = 235 |
H4 na = 400b |
H5 na = 297 |
Total na = 1836 |
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Weighte | nf | %c(95% CI) | nf | %c(95% CI) | nf | %c(95% CI) | nf | %c(95% CI) | nf | %c(95% CI) | nf | %d(95% CI) |
ELBW | 2/3 | 67 (9–99) | 13/18 | 72 (51–94) | 2/2 | 100 | 2/2 | 100 | 13/13 | 100 | 32/38 | 84 (45–97) |
VLBW | 19/33 | 56 (39–73) | 19/41 | 46 (31–62) | 8/9 | 89 | 14/18 | 78 (58–98) | 17/25 | 68 (49–87) | 77/126 | 61 (42–77) |
LBW | 14/65 | 22 (11–32) | 26/150 | 17 (11–23) | 9/26 | 35 (16–53) | 7/32 | 22 (7–37) | 14/94 | 15 (8–22) | 70/367 | 19 (14–25) |
Normal BW | 15/87 | 16 (9–24) | 28/422 | 7 (4–9) | 9/89 | 10 (4–16) | 7/41 | 17 (5–29) | 18/156 | 12 (7–17) | 77/795 | 10 (8–12) |
Macrosomia | 3/8 | 38 (1–74) | 3/31 | 9 (2–26) | 0/11 | – | 0/2 | – | 1/6 | 17 (0.4–64) | 7/58 | 10 (5–17) |
Overall | 53/196 | 26 (20–32) | 89/662 | 13 (11–16) | 28/137 | 22 (16–27) | 30/95 | 29 (21–36) | 63/294 | 21 (17–26) | 263/1384 | 19 (17–22) |
aTotal sample size (number of cases).
bIn H4 birth weight missing in 131 of 400(33%) and outcome missing in 256 of 400 (64%).
cEstimate.
d95% CI adjusted for effect of clustering at hospital level.
eBirth weight: extremely low birth weight (LBW): <1 kg, very LBW: 1 to <1.5 kg, LBW: 1.5 to <2.5 kg, normal: 2.5 to <4 kg, macrosomia: ≥4 kg.
fNumber of deaths out of number of cases (case fatality).