Table 3.
Performance of Using International Classification of Diseases, Tenth Revision, Clinical Modification, Codes (B180, B181, B191) to Identify Patients with Chronic Hepatitis B Virus in Taiwan National Health Insurance Outpatient Claims Data, by Characteristics, 2018
| Sen | (95% CI) | Spe | (95% CI) | PPV | (95% CI) | NPV | (95% CI) | |
|---|---|---|---|---|---|---|---|---|
| All patients | 46.3 | (45.8−46.7) | 83.1 | (82.9−83.3) | 44.6 | (44.1−45.0) | 84.1 | (83.9−84.3) |
| Sex | ||||||||
| Men | 49.9 | (49.3−50.5) | 79.5 | (79.2−79.8) | 43.9 | (43.4−44.4) | 83.1 | (82.9−83.4) |
| Women | 41.5 | (40.8−42.2) | 87.1 | (86.9−87.3) | 45.7 | (45.0−46.5) | 85.0 | (84.8−85.3) |
| Age | ||||||||
| ≤44 years | 48.0 | (47.1−48.9) | 85.3 | (85.0−85.7) | 51.4 | (50.5−52.3) | 83.5 | (83.2−83.9) |
| 45–64 years | 46.5 | (45.9−47.1) | 79.0 | (78.7−79.3) | 42.6 | (42.0−43.2) | 81.5 | (81.2−81.8) |
| ≥65 years | 42.9 | (41.8−44.0) | 86.8 | (86.5−87.2) | 39.6 | (38.6−40.6) | 88.3 | (88.0−88.6) |
| Region | ||||||||
| Taipei | 47.5 | (46.7−48.3) | 83.2 | (82.9−83.5) | 46.0 | (45.2−46.8) | 84.0 | (83.7−84.4) |
| North | 29.6 | (28.6−30.6) | 90.9 | (90.6−91.3) | 54.2 | (52.8−55.6) | 78.1 | (77.6−78.6) |
| Central | 59.4 | (58.2−60.5) | 79.8 | (79.3−80.3) | 45.2 | (44.2−46.2) | 87.5 | (87.1−87.9) |
| South | 54.6 | (53.3−56.0) | 79.0 | (78.5−79.5) | 34.3 | (33.3−35.3) | 89.7 | (89.3−90.0) |
| Kauping | 46.8 | (45.7−47.9) | 83.2 | (82.7−83.6) | 46.8 | (45.7−47.9) | 83.2 | (82.7−83.6) |
| East | 32.0 | (29.4−34.5) | 85.1 | (84.0−86.2) | 42.2 | (39.1−45.3) | 78.6 | (77.4−79.9) |
| Clinical setting | ||||||||
| Medical centers | 46.8 | (46.0−47.5) | 82.1 | (81.8−82.5) | 51.1 | (50.4−51.9) | 79.4 | (79.0−79.8) |
| Regional hospitals | 53.8 | (53.0−54.7) | 79.8 | (79.4−80.1) | 39.1 | (38.4−39.8) | 87.8 | (87.5−88.0) |
| District hospitals | 47.6 | (46.5−48.8) | 85.0 | (84.5−85.4) | 44.7 | (43.6−45.8) | 86.4 | (86.0−86.8) |
| Clinics | 16.6 | (15.4−17.7) | 94.0 | (93.7−94.4) | 39.9 | (37.6−42.2) | 82.4 | (81.9−82.9) |
| Physician specialty | ||||||||
| GI & Hepa | 65.8 | (65.2−66.4) | 57.3 | (56.9−57.8) | 45.4 | (44.9−45.9) | 75.7 | (75.2−76.1) |
| Others | 21.1 | (20.5−21.7) | 94.5 | (94.4−94.6) | 41.5 | (40.5−42.4) | 86.6 | (86.4−86.8) |
Abbreviations: GI & Hepa, gastroenterology and hepatology; Sen, sensitivity; Spe, specificity; PPV, positive predictive value; NPV, negative predictive value.