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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