Table 4 Number (%) of patient weeks with pressure ulcers (PU) across categories of the risk score.
| Risk score | Total no of patient weeks (n = 2025) n (%) | PU present (n = 121) n (%) | PU absent (n = 1904) n (%) | Risk (PU/week) |
|---|---|---|---|---|
| 0–4 | 137 (6.8) | 1 (0.8) | 136 (7.2) | 0.7% |
| 5–9 | 341 (16.8) | 6 (5.0) | 335 (17.6) | 1.7% |
| 10–14 | 510 (25.2) | 15 (12.4) | 495 (26.0) | 2.9% |
| 11–19 | 195 (9.6) | 14 (11.6) | 181 (9.5) | 7.2% |
| 20–24* | 647 (32.0) | 55 (45.5) | 592 (31.1) | 8.5% |
| 25–29* | 123 (6.1) | 16 (13.2) | 107 (5.6) | 13.0% |
| 30–34* | 53 (2.6) | 9 (7.4) | 44 (2.3) | 17.0% |
| ⩾35* | 19 (0.9) | 5 (4.1) | 14 (0.7) | 26.3% |
*Patient weeks at risk at proposed cut off point of 20.