Model 1: univariable associations | Model 2: multivariable associations | ||||||
Coefficient | 95% CI | P value | R2 | Coefficient | 95% CI | P value | |
Gender | |||||||
Male | Ref | 0.003 | |||||
Female | 1.99 | −2.84 to 6.81 | 0.418 | ||||
Birth weight (kg) | |||||||
<1.4 | Ref | 0.026 | |||||
1.5 to <1.9 | −7.75 | −14.23 to −1.28 | 0.020 | ||||
2.0 to <2.4 | −3.37 | −11.92 to 5.17 | 0.440 | ||||
≥2.5 | −3.84 | −9.68 to 2.01 | 0.200 | ||||
Age (days) | |||||||
≤2 | Ref | 0.061 | Ref | ||||
3–7 | −0.16 | −6.34 to 6.02 | 0.959 | 1.78 | −3.06 to 6.64 | 0.469 | |
8–28 | 8.82 | 2.70 to 14.95 | 0.005 | 7.46 | 2.55 to 12.36 | 0.003 | |
Nursing shift | |||||||
Day | 0.013 | ||||||
Night | −4.03 | −8.79 to 0.73 | 0.100 | ||||
Neonatal care category | |||||||
A (severe illness) | Ref | 0.015 | Ref | ||||
B (moderate severity) | −3.25 | −9.09 to 2.59 | 0.274 | −4.27 | −8.78 to 0.23 | 0.063 | |
C (stable) | −5.34 | −11.23 to 0.56 | 0.076 | −7.65 | −12.29 to −3.02 | 0.001 | |
Baby:nurse ratio | |||||||
1–3 babies/nurse | Ref | 0.406 | Ref | ||||
4–11 babies/nurse | −11.79 | −16.65 to −6.92 | <0.001 | −11.49 | −16.26 to −6.73 | <0.001 | |
≥12 babies/nurse | −25.89 | −30.13 to −21.65 | <0.001 | −24.41 | −28.64 to −20.17 | <0.001 | |
Sector | |||||||
Mission | Ref | 0.556 | |||||
Private | 9.13 | 5.21 to 13.05 | <0.001 | ||||
Public | −22.40 | −26.32 to −18.49 | <0.001 |
NCI, nursing care index.