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Table 4 Rate and adjusted odds ratios of early neonatal mortality by birthweight and regions

From: An outcome-based definition of low birthweight for births in low- and middle-income countries: a secondary analysis of the WHO global survey on maternal and perinatal health

Birthweight (g) Early neonatal mortality
Africaa (n = 52,603) Asiab (n = 85,222) Latin Americac (n = 67,823)
n Rate (%) Adjusted OR (95% CI) n Rate (%) Adjusted OR (95% CI) n Rate (%) Adjusted OR (95% CI)
<  1500 435 36.8 30.4 (21.1, 43.7) 677 28.5 54.3 (37.4, 78.9) 960 25.8 18.1 (11.5, 28.5)
1500–1599 114 22.8 20.6 (11.9, 35.7) 327 11.9 23.1 (14.9, 36.0) 161 11.2 13.9 (7.5, 25.5)
1600–1699 116 14.7 11.0 (6.0, 20.4) 209 7.7 15.6 (8.5, 28.5) 196 8.7 12.4 (6.8, 22.8)
1700–1799 143 7.7 6.4 (3.2, 12.7) 387 5.9 13.4 (8.2, 22.0) 281 5.7 8.8 (4.8, 16.1)
1800–1899 175 12.6 11.5 (6.8, 19.5) 458 7.0 16.3 (10.6, 25.2) 340 3.5 5.2 (2.7, 10.3)
1900–1999 228 6.6 6.5 (3.7, 11.6) 431 2.8 7.4 (3.9, 13.9) 373 2.7 4.4 (2.2, 9.0)
2000–2099 636 4.1 5.5 (3.6, 8.6) 1571 2.7 7.4 (5.1, 10.7) 600 3.2 8.3 (4.8, 14.3)
2100–2199 481 2.7 3.6 (2.0, 6.5) 999 0.8 2.7 (1.3, 5.6) 685 2.0 6.1 (3.4, 10.9)
2200–2299 682 2.2 3.0 (1.8, 5.2) 2225 0.7 2.3 (1.4, 4.0) 910 0.9 3.0 (1.4, 6.3)
2300–2399 901 1.1 1.7 (0.9, 3.3) 2043 0.3 1.3 (0.6, 2.7) 1234 0.6 2.6 (1.3, 5.5)
2400–2499 1293 1.3 2.2 (1.3, 3.6) 2772 0.5 2.2 (1.3, 3.7) 1563 0.6 3.0 (1.5, 5.8)
2500–3499 47,399 0.5 1.0 73,123 0.2 1.0 60,520 0.1 1.0
  1. Adjusted for gestational age, mode of delivery, fetal presentation at delivery, maternal complications and complexity index
  2. aROC = 0.8804
  3. bROC = 0.9101
  4. cROC = 0.9245