| Risk factors | Prema (yes) | Prema (no) | OR IC à 95% | P | OR ajusted | P ajusted |
| Maternal fever Yes No |
74 26 |
51 49 |
2.73 [1.50 - 4.95] 1 | 0.000 |
0.43 [0.20 - 0.90] 1 | 0.026 |
| RPM Yes No |
75 25 |
41 59 |
4.31 [2.36 - 7.89] 1 | 0.000 |
0.32 [0.16 - 0.64] 1 | 0.001 |
| Gender Female Male |
47 53 |
41 59 |
0.78 [0.44 - 1.37] 1 | 0.730 |
0.32 [0.16 - 0.64] 1 | 0.001 |