Skip to main content

Table 1 Description of the population characteristics of the three samples

From: Psychometric validation of an empowerment scale for Spanish-speaking patients with rheumatoid arthritis

Population characteristics N = 50 (Feasibility) N = 200 (Psychometric validation) N = 20 (Face validity)
Females, N (%) 46 (92) 184 (92) 19 (95)
Age, years 55 (47–63) 52 (41–61) 52 (32–61)
Marital status, patients married, N (%) 27 (54) 113 (56.5) 19 (95)
Formal education, years 9 (9–11) 9 (9–12) 12 (9–17)
Patients with medium-low SE level, N (%) 47 (94) 186 (98) 16 (80)
Disease duration, years 12 (6.8–19) 12 (6–18) 11 (3–5)
Patients with disease duration ≤5 years, N (%) 10 (5) 44 (22) 7 (35)
Patients with remission, N (%) NA 107 (53.5) NA
CRP, mg/dL NA 0.57 (0. 18–1.5) NA
ESR, mm/H NA 12 (5–24) NA
Patients with RF, N (%) NA 179 (89.5) NA
Patients with ACCP, N (%) NA 134 (72.4)* NA
Patients with major comorbidities, N (%) 11 (22) 38 (19) 4 (10)
Patients with joint replacement, N (%) 5 (10) 30 (15) 2 (10)
  1. Data as presented as median (25th–75th interquartile range) unless otherwise indicated ACCP antibodies to cyclic citrullinated peptides, CRP C-reactive protein, ESR erythrocyte sedimentation rate, N number, NA not available, SE socioeconomic, RF rheumatoid factor. *Data limited to 185 patients with sample available