Impact on overall mortality for each level of neonatal care implemented
| No intervention | Level I care | Level 2 care | P value | ||
| Mortality/N (%) | Mortality/N (%) | Mortality/N (%) | Pre v. level 1 | Level 1 v. level 2 | |
| Overall | 116/240 (48.3) | 262/650 (40.3) | 410/2000 (20.5) | 0.254 | <0.01 |
Pre v. level 1=preintervention versus level 1; level 1 v. level 2=level 1 versus level 2.