Table 4 Practices in relation to the timing of IOL for prelabour rupture of membranes (PROM) women with no other complications or signs of chorioamnionitis: Average and range (min-max) between units
|  |  | ASAP | within 12 h | 13–24 h | 25–48 h | 49–96 h | After 96 h | At 37 + 0 weeks | At 38 + 0 weeks | At 39 + 0 weeks | At 40 + 0 weeks | Not induced |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
At term (37 + 0) who are Group B streptococcus positive | Average | 44% | 15% | 14% | 9% | 0% | 0% | 2% | 1% | 0% | 0% | 14% |
Range | 16–86% | 7–29% | 0–29% | 0–19% | 0–0% | 0–0% | 0–8% | 0–10% | 0–0% | 0–6% | 6–26% | |
At term (> 37 + 0) who are Group B streptococcus negative | Average | 2% | 3% | 30% | 39% | 6% | 1% | 1% | 2% | 0% | 0% | 16% |
Range | 0–7% | 0–7% | 6–46% | 23–81% | 0–10% | 0–3% | 0–6% | 0–10% | 0–0% | 0–6% | 6–25% | |
Late preterm (34 + 0–36 + 6 weeks) who are Group B streptococcus positive | Average | 30% | 11% | 8% | 4% | 2% | 1% | 23% | 1% | 0% | 0% | 19% |
Range | 19–45% | 0–28% | 0–19% | 0–13% | 0–8% | 0–6% | 0–38% | 0–6% | 0–3% | 0–6% | 0–44% | |
Late preterm (34 + 0–36 + 6 weeks) who are Group B streptococcus negative | Average | 3% | 3% | 9% | 9% | 2% | 1% | 44% | 3% | 1% | 0% | 26% |
Range | 0–10% | 0–8% | 6–14% | 0–31% | 0–6% | 0–3% | 19–59% | 0–8% | 0–6% | 0–6% | 6–50% |