Table 4 Sensitivity, specificity, PPV, and NPV of ICD-10-CA with ED definite TIA as reference standard
Diagnosis | Coding algorithm n (%) | Sensitivity | Specificity | PPV | NPV |
|---|---|---|---|---|---|
Definite TIA Prevalence 121 (29.0%) | Main position 79 (18.9%) | 45.5 [36.4, 54.8] | 91.9 [88.2, 94.7] | 69.6 [58.3, 79.5] | 80.5 [75.8, 84.6] |
Any position 99 (23.7%) | 50.4 [41.2, 59.6] | 87.2 [82.8, 90.8] | 61.6 [51.3, 71.2] | 81.1 [76.4, 85.3] | |
Main position +/− Q 122 (29.3%) | 62.0 [52.7, 70.7] | 84.1 [79.5, 88.1] | 61.5 [52.2, 70.1] | 84.4 [79.8, 88.4] | |
Any position +/− Q 151 (36.2%) | 67.8 [58.7, 76.0] | 76.7 [71.5, 81.4] | 54.3 [46.0, 62.4] | 85.3 [80.5, 89.4] |