Score | ALC patients / Patients with same number of points Positive predictive value | ALC patients (N = 124) | Non-ALC patients (N = 2032) | Likelihood ratio (95% CI) |
---|---|---|---|---|
Point system | ||||
 0 point | 2 / 459 (0.4%) | 2 (1.6%) | 457 (22.5%) | 0.07 (0.02–0.28) |
 1 point | 11 / 742 (1.5%) | 11 (8.9%) | 731 (36.0%) | 0.25 (0.14–0.44) |
 2 points | 17 / 440 (3.9%) | 17 (13.7%) | 423 (20.8%) | 0.66 (0.42–1.03) |
 3 points | 26 / 314 (8.3%) | 26 (21.0%) | 288 (14.2%) | 1.48 (1.03–2.12) |
 4 points | 40 / 148 (27.0%) | 40 (32.3%) | 108 (5.3%) | 6.07 (4.43–8.31) |
 5 points | 23 / 45 (51.1%) | 23 (18.6%) | 22 (1.1%) | 17.13 (9.83–29.86) |
 6 points | 4 / 7 (57.1%) | 4 (3.2%) | 3 (0.2%) | 21.85 (4.94–96.56) |
 7 points | 1 / 1 (100%) | 1 (0.8%) | 0 (0%) | N/A |
Risk category | ||||
 Low risk (0–1 points) | 13 / 1201 (1.1%) | 13 (10.5%) | 1188 (58.5%) | 0.18 (0.11–0.30) |
 Medium risk (2–3 points) | 43 / 754 (5.7%) | 43 (34.7%) | 711 (35.0%) | 0.99 (0.77–1.27) |
 High risk (> = 4 points) | 68 / 201 (33.8%) | 68 (54.8%) | 133 (6.6%) | 8.38 (6.66–10.54) |