HCQ use prior to index date/HF diagnosis in patients with RA by HF status.
| HF, n = 71 | Non-HF, n = 69 | P | |
|---|---|---|---|
| Cumulative duration of HCQ use, yrs, median (IQR) | 2.8 (0.6–10) | 2.5 (0.7–8.2) | |
| Years from first ever HCQ start to index date, median (IQR) | 9.9 (5.4–16.9) | 8.2 (3.8–15.0) | 0.26 |
| HCQ cumulative dose, g, median (IQR) | 371 (71–1159) | 302 (89–1043) | 0.98 |
| Patients with HCQ cumulative dose ≥ 300 g, n (%) | 39 (55) | 37 (54) | 0.88 |
HCQ: hydroxychloroquine; HF: heart failure; RA: rheumatoid arthritis.