| Incidence Type | N | n | % | P-Value |
| Overall | 240 | 65 | 27.1 |
|
| Age specific <7 days 7 - 14 days |
228 12 |
60 5 |
26.3 41.7 | 0.243 |
| Gender specific Male Female |
124 116 |
36 29 |
29.0 25.0 | 0.482 |