Table 5 Validation of diagnostic codes for intracranial hemorrhage
From: Validation of diagnostic codes of major clinical outcomes in a National Health Insurance database
Intracranial hemorrhage | Total | True | False | PPV (%) | Sensitivity (%) | Specificity (%) |
|---|---|---|---|---|---|---|
Hospitalization + primary diagnostic code | 200 (100) | 143 (71.5) | 57 (28.5) | 71.5 | – | – |
Hospitalization + primary diagnostic code + imaging diagnosisa | 167 (100) | 136 (81.4) | 31 (18.6) | 81.4 | 95.1 | 45.6 |
Hospitalization + primary diagnostic code + prescriptionb | 179 (100) | 129 (72.1) | 50 (27.9) | 72.1 | 90.2 | 12.3 |
Hospitalization (over 3 days) + primary diagnostic code + imaging diagnosis | 153 (100) | 127 (83.0) | 26 (17.0) | 83.0 | 88.8 | 54.4 |
Hospitalization (over 3 days) + primary diagnostic code + prescription | 142 (100) | 118 (83.1) | 24 (16.9) | 83.1 | 82.5 | 57.9 |