Table 3 Bleeding rates according to the IMPROVE bleeding RAMa
Risk score grouping | Patients | Incidence of any bleeding | Incidence of major bleeding | ||
|---|---|---|---|---|---|
| Â | n (%) | n | % (95% CI) | n | % (95% CI) |
Two-risk-group model | Â | Â | Â | Â | Â |
Low risk (negative) | 3,281 (84.6) | 43 | 1.3 (1.0–1.8) | 34 | 1.0 (0.7–1.5) |
High risk (positive) | 595 (15.4) | 15 | 2.5 (1.5–4.3) | 15 | 2.5 (1.5–4.3) |
11-risk group modelb | Â | Â | Â | Â | Â |
0–1 (0.5) | 218 (5.6) | 1 | 0.5 (0.0–6.4) | 0 | 0.0 (0.0–1.7) |
1.5–2 (1.75) | 444 (11.5) | 1 | 0.2 (0.0–3.3) | 1 | 0.2 (0.0–3.3) |
2.5 (2.5) | 795 (20.5) | 7 | 0.9 (0.4–2.1) | 5 | 0.7 (0.3–1.8) |
3–4 (3.5) | 673 (17.4) | 12 | 1.7 (0.9–3.2) | 10 | 1.5 (0.7–2.9) |
4.5–5 (4.75) | 656 (16.9) | 7 | 1.1 (0.5–2.5) | 6 | 0.9 (0.4–2.3) |
5.5–6.5 (6) | 494 (12.7) | 14 | 2.9 (1.7–5.0) | 11 | 2.3 (1.2–4.3) |
7 (7) | 200 (5.2) | 3 | 1.5 (0.4–5.5) | 3 | 1.5 (0.4–5.5) |
7.5–8 (7.75) | 151 (3.9) | 5 | 3.4 (1.3–8.7) | 5 | 3.4 (1.3–8.7) |
8.5–9.5 (9) | 157 (4.1) | 4 | 2.8 (0.9–7.9) | 4 | 2.8 (0.9–7.9) |
10–12 (11) | 58 (1.5) | 2 | 2.7 (0.3–20.6) | 2 | 2.7 (0.3–20.6) |
≥ 12.5 | 28 (0.7) | 1 | 3.5 (0.2–36.5) | 1 | 3.5 (0.2–36.5) |
Total | 3,876 (100) | 58 | — | 49 | — |