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Table 2 Detailed prevalence of major comorbidities at baseline

From: Chinese Registry of rheumatoid arthritis (CREDIT): II. prevalence and risk factors of major comorbidities in Chinese patients with rheumatoid arthritis

  Total cohort (n = 13,210) Men (n = 2558) Women (n = 10,652) Age < 60 y (n = 8891) Age ≥ 60 y (n = 4319)
Comorbidities N Prevalence (95% CI) N (%) N (%) N (%) N (%)
Any major comorbidity 559 4.2 (3.9–4.6) 125 (4.9) 434 (4.1) 185 (2.1) 374 (8.7)
Cardiovascular disease 293 2.2 (2.0–2.5) 92 (3.6) 201 (1.9) 72 (0.8) 221 (5.1)
 Stroke 108 0.8 (0.7–1.0) 40 (1.6) 68 (0.6) 23 (0.3) 85 (2.0)
 Coronary artery diseasea 204 1.5 (1.3–1.8) 59 (2.3) 145 (1.4) 50 (0.6) 154 (3.6)
  Angina pectoris 132 1.0 (0.8–1.2) 34 (1.3) 98 (0.9) 38 (0.4) 94 (2.2)
  Myocardial infarction 50 0.4 (0.3–0.5) 17 (0.7) 33 (0.3) 4 (0.04) 46 (1.1)
Fragility fracture 222 1.7 (1.5–1.9) 26 (1.0) 196 (1.8) 85 (1.0) 137 (3.2)
Malignancyb 78 0.6 (0.5–0.7) 15 (0.6) 63 (0.6) 32 (0.4) 46 (1.1)
Overlap of comorbidities
 CVD + fracture 28 0.21 (0.13–0.29) 7 (0.05) 21 (0.16) 4 (0.03) 24 (0.18)
 CVD + malignancy 5 0.04 (0–0.07) 1 (0.01) 4 (0.03) 0 (0) 5 (0.04)
 Fracture + malignancy 1 0.01 (0–0.05) 0 (0) 1 (0.01) 0 (0) 1 (0.01)
 CVD + fracture + malignancy 0 0 (0) 0 (0) 0 (0) 0 (0) 0 (0)
  1. CVD cardiovascular disease
  2. aData on detailed type of CAD were missing from 22 patients
  3. bData on organ of malignancy were missing from three RA patients with malignancies