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Table 1 Characteristics of the study populations

From: Risk for cardiovascular disease in Japanese patients with rheumatoid arthritis: a large-scale epidemiological study using a healthcare database

Characteristics

RA patients

OA patients

All cohort

Sub-cohorta

Number of patients, n

8658

2472

32,202

Female, n (%)

5819 (67.2)

1711 (69.2)

22,046 (68.5)

Age, mean (SD) (years)

63.8 (15.1)

62.4 (15.3)

70.3 (12.0)

 Median (years)

66.0

64.0

72.0

Diabetes complications, n (%)

424 (4.9)

90 (3.6)

2571 (8.0)

CRP at baseline, mean (SD) (mg/dl)

2.4 (4.1)

 Median (mg/dl)

0.7

Total cholesterol at baseline, mean (SD) (mg/dl)

186.9 (39.9)

 Median (mg/dl)

183.0

  1. RA rheumatoid arthritis, OA osteoarthritis, SD standard deviation, CRP C-reactive protein
  2. aPatients with laboratory data who were included in risk factor analysis