Accuracy measure | Overall (n = 357) | < 5 years (n = 163) | ≥ 5 years (n = 194) |
---|---|---|---|
 | % (95% CI) | % (95% CI) | % (95% CI) |
Sensitivity | 98 (94–99) | 98 (93–100) | 97(86–100) |
Specificity | 72 (65–77) | 54 (41–67) | 78 (71–85) |
Positive predictive value | 69 (62–75) | 78 (58–70) | 51 (39–64) |
Negative predictive value | 98 (95–100) | 94 (81–99) | 99 (96–100) |
ICT true positives, n(% pos) | 136(69%) | 36(51%) | 100(78) |
ICT true negatives, n(% neg) | 156(98%) | 123(99%) | 33(94%) |