Table 1.
Definitions for flagging disease outcomes and the respective prevalences in the final cohort table. Abbreviations used: Chronic Kidney Disease (CKD), Type 2 Diabetes (T2D), Inflammatory Bowel Disease (IBD), Rheumatoid Arthritis (RA), International Classification of Diseases, Tenth Revision (ICD-10)
| Disease | ICD-10 Code | Definition | Prevalence | Number of cases |
|---|---|---|---|---|
| Lung Cancer | C34 | Two lung cancer claims at least 30 days apart, no history of any cancer | 0.053% | 6,539 |
| Rheumatoid Arthritis (RA) | M05, M06 (Except M064) | At least one RA claim* | 0.10% | 12,174 |
| Prostate Cancer | C61 | Two prostate cancer claims at least 30 days apart, no history of any cancer | 0.12% | 14,925 |
| Type 2 Diabetes (T2D) | E11 | Two T2D claims at least 30 days apart | 0.59% | 73,540 |
| Inflammatory Bowel Disease (IBD) | K51, K52 | Two IBD claims at least one day apart | 0.32% | 39, 502 |
| Chronic Kidney Disease (CKD) | N18 | Two CKD claims at least 30 days apart | 0.63% | 78,786 |