From: Validation of a case definition to define chronic dialysis using outpatient administrative data
Definitions | Admin (+) n (prev.) (a+b) | Registry (+) Admin (+) n (a) | Registry (-) Admin (+) n (b) | Registry (+) Admin (-) n (c) | Registry (-) Admin (-) n (d) | Positive agreement | Sensitivity | PPV | Kappa |
---|---|---|---|---|---|---|---|---|---|
1 outpatient claim | 2324 (0.21%) | 1805 | 519 | 422 | 1,115,351 | 0.793 | 0.811 | 0.777 | 0.793 |
2 outpatient claims | 2171 (0.19%) | 1751 | 420 | 476 | 1,115,450 | 0.796 | 0.786 | 0.807 | 0.796 |
2 outpatient claims at least 90 days apart | 1657 (0.15%) | 1406 | 251 | 821 | 1,115,619 | 0.724 | 0.631 | 0.848 | 0.724 |
Continuous outpatient claims for at least 90 days with no gaps greater than 21 days | 1508 (0.13%) | 1295 | 213 | 932 | 1,115,657 | 0.693 | 0.582 | 0.859 | 0.693 |