From: Validation of rheumatoid arthritis diagnoses in health care utilization data
Gold standard definition | A. At least 2 claims for RA | B. At least 3 claims for RA | C. At least 2 claims from a rheumatologista |
---|---|---|---|
DMARD prescription filling is not required | |||
Number | 131 | 110 | 84 |
RA per rheumatologists, number | 73 | 72 | 56 |
PPV (95% CI) | 55.7 (46.8-64.4) | 65.5 (55.8-74.3) | 66.7 (55.5-76.6) |
At least 4 ACR criteria, number | 44 | 44 | 33 |
PPV (95% CI) | 33.6 (25.6-42.4) | 40.0 (30.8-49.8) | 39.3 (28.8-50.6) |
At least 3 ACR criteria, number | 56 | 56 | 42 |
PPV (95% CI) | 42.8 (34.2-51.7) | 50.9 (41.2-60.6) | 50.0 (38.9-61.1) |
At least 1 DMARD prescription filling is required | |||
Number | 58 | 56 | 45 |
RA per rheumatologists, number | 50 | 49 | 40 |
PPV (95% CI) | 86.2 (74.6-93.9) | 87.5 (75.9-94.8) | 88.9 (76.0-96.3) |
At least 4 ACR criteria, number | 34 | 34 | 25 |
PPV (95% CI) | 58.6 (44.9-71.4) | 60.7 (46.8-73.5) | 55.6 (40.0-70.4) |
At least 3 ACR criteria, number | 42 | 42 | 33 |
PPV (95% CI) | 72.4 (59.1-83.3) | 75.0 (61.6-85.6) | 73.3 (58.1-85.4) |