Characteristics of positive flagged cases compared with control or negative flagged cases
| Positive cases (n=741) | Controls (n=774) | |
| Age | ||
| Mean | 68.20 | 68.16 |
| P25 | 59 | 58 |
| P50 | 72 | 71 |
| P75 | 80 | 80 |
| Sex (female ratio) | 49.53 | 47.93 |
| Severity of illness (mean) | 3 | 3 |
| Length of stay (days) | ||
| Mean | 33.82 | 21.11 |
| P25 | 12 | 8 |
| P50 | 23 | 14 |
| P75 | 42 | 24 |