Table 1.
Characteristics of included studies (n = 86)
| n | % | |
|---|---|---|
| Year | ||
| 2010–15 | 53 | 61.6 |
| 2000–09 | 30 | 34.9 |
| 1988–99 | 3 | 3.5 |
| Sample Size | ||
| < 50 | 53 | 61.6 |
| 50 to < 100 | 10 | 11.6 |
| 100 to < 200 | 10 | 11.6 |
| ≥200 | 13 | 15.1 |
| Study type | ||
| Survey or interview | 41 | 47.7 |
| Facilities evaluation | 15 | 17.4 |
| Randomized control trial | 7 | 8.1 |
| Cohort study | 2 | 2.3 |
| Other | 20 | 23.3 |
| Pre-post | 1 | 1.2 |
| WHO region | ||
| Americas | 28 | 32.6 |
| Africa | 20 | 23.3 |
| Europe | 18 | 20.9 |
| Southeast Asia | 10 | 11.6 |
| Eastern Mediterranean | 3 | 3.5 |
| Western Pacific | 3 | 3.5 |
| Multiple regions | 3 | 3.5 |
| Missing | 1 | 1.2 |
| NMR (deaths per 1000 live birth) | ||
| <5 | 32 | 37.2 |
| 5 to < 15 | 17 | 19.8 |
| 15 to < 30 | 28 | 32.6 |
| ≥30 | 3 | 3.5 |
| Missing | 6 | 7.0 |
| Setting (rural or urban) | ||
| Urban | 32 | 37.2 |
| Urban and rural | 13 | 15.1 |
| Rural | 4 | 4.7 |
| Missing | 37 | 43.0 |
| Population source | ||
| Health facility | 50 | 58.1 |
| NICU or stepdown unit | 28 | 32.6 |
| Community or population-based surveillance | 8 | 9.3 |
| Gestational Age | ||
| Preterm 34 to < 37 weeks | 9 | 10.5 |
| All gestational ages | 10 | 11.6 |
| Very preterm <34 weeks | 8 | 9.3 |
| Mixed preterm and very preterm <37 weeks | 3 | 3.5 |
| Full term ≥ 37 weeks | 3 | 3.5 |
| Missing | 53 | 61.6 |
| Birth weight | ||
| LBW 1500 to < 2500 g | 9 | 10.5 |
| All birth weights | 11 | 12.8 |
| Mixed low and very LBW <2500 g | 2 | 2.3 |
| Very LBW <1500 g | 2 | 2.3 |
| Missing | 62 | 72.1 |