Table 4 AUDIT-C thresholds for higher risk drinking (female)
From: Validation of the AUDIT-C in adults seeking help with their drinking online
AUDIT-C score | Sensitivity  % (95% CI) | Specificity  % (95% CI) | LR+a (95% CI) | LR−b (95% CI) | Sensitivity + specificity | % Correctly classified (95% CI) |
|---|---|---|---|---|---|---|
≥2 | 99.92 (99.56, 100.0) | 0.90 (0.36, 1.85) | 1.01 (0.48, 2.11) | 0.09 (0.01, 0.64) | 100.82 | 62.45 (60.31, 64.55) |
≥3 | 99.92 (99.56, 100.0) | 1.29 (0.62, 2.35) | 1.01 (0.55, 1.87) | 0.06 (0.02, 0.24) | 101.21 | 62.59 (60.46, 64.69) |
≥4 | 99.76 (99.31, 99.95) | 4.25 (2.94, 5.91) | 1.04 (0.74, 1.45) | 0.06 (0.02, 0.19) | 104.01 | 63.61 (61.49, 65.70) |
≥5 | 99.37 (98.77, 99.73) | 11.71 (9.54, 14.18) | 1.13 (0.93, 1.37) | 0.05 (0.03, 0.10) | 111.08 | 66.20 (64.10, 68.24) |
≥6 | 96.71 (95.58, 97.62) | 25.35 (22.33, 28.57) | 1.30 (1.15, 1.47) | 0.13 (0.10, 0.18) | 122.06 | 69.70 (67.66, 71.69) |
≥7 | 90.83 (89.11, 92.36) | 44.40 (40.87, 47.98) | 1.63 (1.50, 1.77) | 0.21 (0.17, 0.25) | 135.23 | 73.26 (71.29, 75.16) |
≥8* | 81.90 (79.67, 83.97) | 61.90 (58.39, 65.33) | 2.15 (2.02, 2.28) | 0.29 (0.25, 0.34) | 143.80 | 74.33 (72.38, 76.21) |
≥9 | 60.97 (58.23, 63.66) | 80.82 (77.88, 83.53) | 3.18 (3.01, 3.36) | 0.48 (0.41, 0.56) | 141.79 | 68.49 (66.43, 70.49) |
≥10 | 37.38 (34.72, 40.10) | 92.79 (90.74, 94.51) | 5.19 (4.82, 5.59) | 0.67 (0.52, 0.87) | 130.17 | 58.35 (56.19, 60.50) |