Table 3.
Neonatal deaths by gestational age at birth, overall and by region
| Overall | |||||
|---|---|---|---|---|---|
| Live births whose vital status at the end of neonatal period is known |
9884 |
||||
| Neonatal deaths |
289 (29/1000 LB) |
||||
| Proportion of preterm deaths among all neonatal deaths |
46.4% |
||||
| Proportion of preterm infants who died during neonatal period |
13.8% |
||||
| Gestational age* in completed week (gestational age available n = 9884) |
Neonatal deaths
|
OR (95% CI)
|
Adjusted OR† (95% CI) |
P-value
|
|
| <32 weeks (n = 98) |
61 (62.2%) |
98.4 (63.3, 152.9) |
108.2 (52.1, 224.1) |
|
|
| 32 to <34 weeks (n = 144) |
30 (20.8%) |
15.7 (10.2, 24.3) |
13.7 (6.9, 27.2) |
|
|
| 34 to <37 weeks (n = 732) |
43 (5.9%) |
3.7 (2.6, 5.3) |
3.6 (2.1, 6.3) |
P < 0.001 |
|
| 37 to <42 weeks (n = 8556) |
141 (1.7%) |
1.0 (reference) |
1.0 (reference) |
|
|
| ≥42 weeks (n = 354) |
14 (4.0%) |
2.5 (1.4, 4.3) |
1.9 (0.67, 5.4) |
|
|
|
Asia
| |||||
| Live births whose vital status at the end of neonatal period is known |
5563 |
||||
| Neonatal deaths |
201 (36.1/1000 LB) |
||||
| Proportion of preterm deaths among all neonatal deaths |
49.3% |
||||
| Proportion of preterm infants who died during neonatal period |
13.2% |
||||
| gestational age* in week (gestational age available n = 5563) |
Neonatal deaths
|
OR (95% CI)
|
Adjusted OR†(95% CI) |
P-value
|
|
| <32 weeks (n = 69) |
45 (65.2%) |
93.1 (54.4, 159, 2) |
162.2 (61.5, 427.7) |
|
|
| 32 to <34 weeks (n = 109) |
18 (16.5%) |
9.8 (5.7, 17.0) |
9.8 (4.1, 23.5) |
|
|
| 34 to <37 weeks (n = 574) |
36 (6.3%) |
3.3 (2.2, 4.9) |
4.0 (2.1, 7.6) |
P < 0.001 |
|
| 37 to <42 weeks (n = 4712) |
93 (2.0%) |
1.0 (reference) |
1.0 (reference) |
|
|
| ≥42 weeks (n = 99) |
9 (9.1%) |
4.7 (2.4, 10.2) |
3.0 (0.7, 13.2) |
|
|
|
Africa
| |||||
| Live births whose vital status at the end of the neonatal period is known |
4321 |
||||
| Neonatal deaths |
88 (20.4/1000 LB) |
||||
| Proportion of preterm deaths among all neonatal deaths |
39.8% |
||||
| Proportion of preterm infants who died during neonatal period |
15.8% |
||||
| Gestational age* in week (gestational age available n = 4321) |
Neonatal deaths
|
OR (95% CI)
|
Adjusted OR† (95% CI) |
P-value
|
|
| <32 weeks (n = 29) |
16 (55.2%) |
97.3 (44.4, 213.5) |
65.7 (17.8,242.2) |
|
|
| 32 to <34 weeks (n = 35) |
12 (34.3%) |
41.3 (19.4, 87.7) |
39.5 (10.6, 146.0) |
|
|
| 34 to <37 weeks (n = 158) |
7 (4.4%) |
3.7 (1.6, 8.2) |
2.7 (0.8, 9.3) |
P < 0.001 |
|
| 37 to <42 weeks (n = 3844) |
48 (1.3%) |
1.0 (reference) |
1.0 (reference) |
|
|
| ≥42 weeks (n = 255) | 5 (2.0%) | 1.6 (0.6, 4.0) |
1.3 (0.3, 5.4) | ||
OR – odds ratio, CI – confidence interval
*Gestational age is based on ultrasound.
†OR was adjusted for site, mother's age, mother's education, wealth quintile and previous obstetric history, including previous stillbirth and previous preterm birth, morbidity during pregnancy (antepartum haemorrhage, pre-eclampsia and eclampsia, antepartum fever) and multiple gestations.