RA patients (cases) | Non-RA patients (controls) | p valuea | |||
---|---|---|---|---|---|
N | % | N | % | ||
Total no. of patients | 46,030 | 100 | 46,030 | 100 | – |
Age (years) | |||||
Mean (SD) | 56.61 (14.79) | – | |||
Median (IQR) | 57 (19) | – | |||
18–29 | 1780 | 3.87 | 1780 | 3.87 | 1 |
30–39 | 4119 | 8.95 | 4119 | 8.95 | 1 |
40–49 | 8064 | 17.52 | 8064 | 17.52 | 1 |
50–59 | 12,735 | 27.67 | 12,735 | 27.67 | 1 |
60–69 | 10,428 | 22.65 | 10,428 | 22.65 | 1 |
≥70 | 8904 | 19.34 | 8904 | 19.34 | 1 |
Medical conditions | |||||
Cardiovascular disease | 8330 | 18.10 | 6489 | 14.10 | <0.0001 |
Chronic lung disease | 2470 | 5.37 | 1604 | 3.48 | <0.0001 |
Diabetes | 5284 | 11.48 | 5475 | 11.89 | 0.0501 |
Cancer | 9152 | 19.88 | 9362 | 20.34 | 0.0842 |
HIV/AIDS | 44 | 0.10 | 47 | 0.10 | 0.753 |
Transplant | 926 | 2.01 | 421 | 0.91 | <0.0001 |
Renal dysfunction | 474 | 1.03 | 425 | 0.92 | 0.1005 |
Neurological disorders | 3465 | 7.53 | 183 | 0.40 | <0.0001 |
Depression | 2555 | 5.55 | 2542 | 5.52 | 0.8514 |
Medications at baseline | |||||
DMARDs | 6413 | 13.93 | 642 | 1.39 | <0.0001 |
Biologics | 3276 | 7.12 | 104 | 0.23 | <0.0001 |
Influenza vaccination | 3500 | 7.60 | 4667 | 10.14 | <0.0001 |
High-dose corticosteroidsb | 10,056 | 21.85 | 4990 | 10.84 | <0.0001 |
Low-dose corticosteroidsb | 7903 | 17.17 | 1182 | 2.57 | <0.0001 |
Antibiotics | 28,847 | 62.67 | 24545 | 53.32 | <0.0001 |
Statins | 7408 | 16.09 | 7908 | 17.18 | <0.0001 |
RA patients who had received no active medication | |||||
No DMARDs, biologics or corticosteroidsc | 25,894 | 56.25 | NA | NA | – |
Sex | |||||
Male | 15,230 | 33.09 | 15230 | 33.09 | 1 |
Female | 30,800 | 66.91 | 30800 | 66.91 | 1 |