Table 1.
Characteristics of CLEAR II participants included in the study (N = 516)
| Mean (SD) or Percent | |
|---|---|
| Participants (N)a | |
| Demographics and lifestyle | |
| Age (years) | 54.7 (11.2) |
| Gender (% Female) | 89.5 |
| Currently smoking (%) | 23.3 |
| Disease duration (years) | 10.8 (9.5) |
| Total smoking (pack years) | 9.1 (16.2) |
| Current medication use (%) | |
| Methotrexate or Leflunomide | 63.6 |
| Biological agents | 24.4 |
| Socioeconomic status (%) | |
| Less than or = HS | 47.5 |
| Homeownership | 56.0 |
| Parental education < HS | 55.2 |
| Parental homeownership | 43.2 |
| Self-reported health | |
| Fatigue (VAS cm) | 6.0 (3.0) |
| Pain (VAS cm) | 6.3 (2.8) |
| Disability (HAQ) | 1.3 (0.7) |
| Helplessness (RAI) | 2.8 (1.0) |
CLEAR Consortium for the Longitudinal Evaluation of African-Americans with Rheumatoid Arthritis, SD Standard deviation
aDataset restricted to the 516 participants with complete data on SES and covariates: age, sex, body mass index, disease duration, smoking status, current methotrexate/leflunomide use, and current biologic agent use