List of risk factors present
| Number of women with a single risk factor | All risk factors | |
| PROM >18 h | 2* | 23 |
| Prematurity <37 weeks | 5 | 19 |
| GBS identified in pregnancy | 2 | 13 |
| Maternal pyrexia >38°C | 2 | 8 |
| Previous infant with GBS | 0 | 3 |
| Total | 11 | 66 |
GBS, group B streptococcus; PROM, premature rupture of membranes.
*23 women had PROM >18 h as a risk factor and 2 women had PROM >18 h as their only risk factor.