Median (and IQR) number of people affected and days of disruption by closure groups
| Closure group | ||||
|---|---|---|---|---|
| Outcome | Prompt closure | Closed in 4–6 days | Closed in 7+ days | Not closed |
| Duration of outbreak (days) | 7 (4–9.75) | 9 (7–12) | 14 (10.75–18.25) | 6 (4–11) |
| Total duration of disruption (days) | 9 (6–12) | 12 (9–14) | 17 (13–20) | NA |
| Duration of closure (days) | 8 (5–11) | 7 (5–10) | 7 (5–10) | NA |
| Number of patients affected | 11 (7–15) | 12 (9–16) | 14.5 (10–18) | 7 (4–11.75) |
| Number of staff affected | 2 (0–5) | 3 (1–6) | 2 (1–5) | 1 (0–3) |
| Bed-days lost | 15 (7–38) | 14 (7–43) | 17 (6–46.5) | NA |
| Average cases per day | 2 (1.3–2.9) | 1.6 (1.2–2.2) | 1.2 (0.8–1.8) | 1.3 (0.8–2.0) |
| Number of cases by time of closure | 2.4 (1.5–3.8) | 7.0 (5.3–10.0) | 11.0 (8.3–15.0) | NA |
Kruskal-Wallace rank sum tests between groups were all significant p<0.001 except for lost bed-days.