Table 1 Characteristics of the rheumatoid arthritis group (RAG) and the control group (CG)
From: Hand strength in patients with RA correlates strongly with function but not with activity of disease
Variables | RAG n = 121 | CG n = 121 |
|---|---|---|
Age (years) | 57.50 ± 10.75 | 57.48 ± 10.48 |
BMI (kg/m 2) | 28.26 ± 5.84 | 29.74 ± 6.08 |
Sex (%) | ||
 Male | 14 (11.6) | 14 (11.2) |
 Female | 107 (88.4) | 107 (88.4) |
Ethnicity (%) | ||
 White | 81 (66.9) | 67 (55.4) |
 Black | 3 (2.5) | 12 (9.9) |
 Brown skin | 36 (29.8) | 42 (34.7) |
 Indian | 1 (0.8) | – |
Educational level (%) | ||
 None | 8 (6.6) | 5 (4.1) |
 Incomplete elementary school | 49 (40.5) | 52 (43.0) |
 Complete elementary school | 17 (14.0) | 15 (12.4) |
 Incomplete secondary school | 22 (18.2) | 5 (4.1) |
 Complete secondary school | 18 (14.9) | 37 (30.6) |
 Higher education | 7 (5.8) | 7 (5.8) |
Marital status (%) | ||
 Single | 19 (15.7) | 10 (8.3) |
 Married | 65 (53.7) | 72 (59.5) |
 Divorced | 19 (15.7) | 14 (11.6) |
 Widowed | 14 (11.6) | 18 (14.9) |
 Stable union | 4 (3.3) | 7 (5.8) |
Dominant hand (%) | ||
 Right | 114 (94.2) | 115 (95.0) |
Associated diseases (%) | ||
 Systemic arterial hypertension | 71 (58.7) | 74 (61.2) |
 Osteoporosis | 31 (25.6) | 3 (2.5) |
 Diabetes | 18 (14.9) | 32 (26.4) |