CHAT sensitivity, specificity, positive and negative predictive values.
| Sensitivity, % (95% CI) | Specificity, % (95% CI) | PPV, % (95% CI) | NPV, % (95% CI) | |
|---|---|---|---|---|
| Nicotine dependency | 89 (83 to 93) | 93 (91 to 94) | 68 (61 to 74) | 98 (97 to 99) |
| Alcohol | ||||
| Problematic drinking | 81 (73 to 87) | 86 (83 to 88) | 44 (37 to 51) | 97 (96 to 98) |
| Alcohol dependency | 94 (73 to 99) | 79 (77 to 82) | 8 (5 to 12) | 100 (99 to 100) |
| Problematic drug use | 45 (28 to 62) | 97 (96 to 98) | 33 (21 to 49) | 98 (97 to 99) |
| Problematic gambling | 88 (64 to 97) | 97 (96 to 98) | 35 (21 to 50) | 100 (99 to 100) |
| Major depression | 96 (87 to 99) | 69 (66 to 72) | 15 (11 to 19) | 100 (99 to 100) |
| Anxiety | 88 (80 to 93) | 74 (70 to 76) | 29 (24 to 34) | 98 (97 to 99) |
| Abuse | ||||
| Verbal abuse CTS | 62 (41 to 79) | 95 (93 to 96) | 25 (15 to 38) | 99 (98 to 100) |
| Physical abuse CTS | 80 (38 to 99) | 94 (92 to 95) | 1 (0 to 2) | 100 (99 to 100) |
| Victim according to HITS | 49 (34 to 64) | 96 (94 to 97) | 4 (2 to 5) | 97 (96 to 98) |
| Anger | ||||
| Verbal abuse | 63 (41 to 81) | 88 (86 to 90) | 12 (1 to 19) | 99 (98 to 100) |
| Physical abuse | 50 (15 to 85) | 87 (85 to 89) | 1 (0 to 1) | 100 (99 to 100) |
| Exercise | 26 (22 to 30) | 40 (36 to 45) | 27 (23 to 32) | 39 (35 to 44) |
| Eating disorder | 91 (84 to 95) | 67 (64 to 70) | 30 (26 to 36) | 98 (96 to 99) |
CHAT = Case-finding and Help Assessment Tool. CTS = Conflict Tactics Scale. HITS = ‘Hurts, Insults, Threatens, Screams’ tool. NPV = negative predictive value. PPV = positive predictive value.