Table 3
Laboratory and Prescription Medication Validation of Patients in the CCR: HCV From 1998–2007 and in 2007 Only For Any Infection and Chronic Infection
| Laboratory Evidence of Infection | Number Patients (%) with Laboratory Evidence | In Absence of Positive Laboratory Test, Number Patients with HCV Antivirals | Number (%) Patients with Positive Laboratory or Antiviral Evidence of Infection |
| HCV infection | |||
| 1998–2007 | |||
| Positive | 292,205 (91.9) | 292,205 (91.9) | |
| Indeterminate | 209 (0.1) | 0 | 0 (0.0) |
| Untested | 11,541 (3.6) | 224 | 224 (0.1) |
| Negative | 14,043 (4.4) | 320 | 320 (0.1) |
| Total | 544 | 292,749 (92.1) | |
| 2007 Only | |||
| Positive | 23,587 (92.3) | — | 23,587 (92.3) |
| Indeterminate | 12 (0.0) | 0 | 0 (0.0) |
| Untested | 1,652 (6.5) | 22 | 22 (0.1) |
| Negative | 310 (1.2) | 40 | 40 (0.2) |
| Total | 25,561 (100.0) | 62 | 23,649 (92.5) |
| HCV chronic infection | |||
| 1998–2007 | |||
| Positive | 190,608 (59.9) | 190,608 (59.9) | |
| Indeterminate | 349 (0.1) | 15 | 15 (0.0) |
| Untested | 81,940 (25.8) | 658 | 658 (0.2) |
| Negative | 45101 (14.2) | 761 | 761 (0.2) |
| Total | 1434 | 192,042 (60.4) | |
| 2007 Only | |||
| Positive | 19,969 (78.1) | — | 19,967 |
| Indeterminate | 4 (0.0) | 0 | 0 |
| Untested | 3,904 (15.3) | 26 | 26 |
| Negative | 1,684 (6.6) | 56 | 56 |
| Total | 25,561 (100.0) | 82 | 20,051 (78.4) |
-
CCR = clinical case registries; HCV = hepatitis C virus.
