Table 3. Results of the hierarchical conditional logistic regression predicting work disability (n = 772)*.
Step | ||||
---|---|---|---|---|
Variable | 1 | 2 | 3 | 4 |
Age, per 5 years | 1.3 (1.2–1.5) | 1.3 (1.2–1.5) | 1.3 (1.2–1.5) | 1.2 (1.1–1.4) |
Sex | 0.9 (0.6–1.4) | 0.8 (0.5–1.3) | 0.8 (0.5–1.3) | 1.0 (0.6–1.8) |
Education | 1.3 (0.9–1.8) | 1.2 (0.9–1.8) | 1.2 (0.9–1.7) | 1.1 (0.7–1.7) |
Personal income from employment ≤$25,000 | 2.7 (1.9–3.9) | 2.4 (1.7–3.5) | 2.4 (1.6–3.4) | 1.7 (1.0–2.7) |
Disease duration, per 5 years | 1.0 (0.9–1.1) | 1.0 (0.9–1.1) | 1.0 (0.9–1.2) | |
HAQ functional limitation score | 1.5 (1.1–2.0) | 1.4 (1.0–1.9) | 1.2 (0.8–1.7) | |
RA global severity† | 1.1 (1.0–1.2) | 1.1 (1.0–1.2) | 1.1 (0.9–1.2) | |
General health status | 1.2 (0.9–1.6) | 1.2 (0.8–1.7) | ||
Hours worked/week, per 4 hours | 0.9 (0.8–0.9) | |||
Occupational hand demand | 0.8 (0.7–1.1) | |||
Commuting difficulty | 1.0 (0.9–1.1) | |||
Self-employment | 1.5 (0.9–2.4) | |||
Professional/managerial job | 0.8 (0.5–1.2) | |||
Prefer to work part time‡ | 0.4 (0.2–0.6) | |||
Prefer to work full time‡ | 0.2 (0.1–0.4) |
Values are the odds ratio (95% confidence interval). HAQ = Health Assessment Questionnaire; RA = rheumatoid arthritis.
Measure of overall effect of rheumatoid arthritis
Versus preference to not work.