Table 5 Original compared to refined RA case numbers according to definitions
From: A novel method to monitor rheumatoid arthritis prevalence using hospital and medication databases
Definition | Cases (Original) n | Prevalence % (95% CI) | Cases (Refined) n | Refined Prevalence % (95% CI) |
|---|---|---|---|---|
Self-reported RAa | 1367 | 5·4 (5·09 − 5·64) | 986 | 3·9 (3·63 − 4·11) |
Self-reported medications (strict) | 294 | 1·2 (1·02 − 1·28) | 136 | 0·5 (0·44 − 0·62) |
Self-reported medications (mid) | 725 | 3·3 (0·75 − 2·97) | 345 | 1·4 (1·21 − 1·49) |
PBS medications (strict) | 1038 | 2·8 (2·51 − 2·83) | 745 | 1·9 (1·78 − 2·06) |
Admitted/EDb | 292 | 1·1 (0·97 − 1·21) | N/A | N/A |