Table 2 Performance of life-threatening neonatal conditions with their 95 % confidence intervals, Brazil, WHO (Modified from Pileggi et al., 2010) [18]
Condition | Early neonatal deaths | Sensitivity | Specificity | Positive Likelihood Ratio | ||
|---|---|---|---|---|---|---|
+ | − | a/(a + c) | d/(b + d) | Sensitivity/1-Specificity | ||
+ | a | b | ||||
- | c | d | ||||
Gestational age at birth < 30 weeks | + - | 52 64 | 69 14.618 | 44.8 % (36.1-53.9) | 99.5 % (99.4-99.6) | 95.4 (70.0-130.1) |
Very low birthweight | + - | 74 50 | 138 14.863 | 59.7 % (50.9-67.9) | 99,1 % (98.5-99.2) | 64.9 (52.0-80.9) |
5 min Apgar score < 7 | + - | 66 50 | 194 14.630 | 56.9 % (47.8-65.5) | 98.7 % (98.5-98.9) | 43.5 (35.2-53.7) |
Any of the above conditions | + - | 100 21 | 324 14.175 | 82.6 % (74.9-98.0) | 97.8 % (97.5-98.0) | 37.0 (32.3-42.3) |