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Table 3 Logistic regression models on sickness absence days during the last 12 months as response variable among Norwegian doctors in 2010 (method: enter)

From: Differences in sickness absence between self-employed and employed doctors: a cross-sectional study on national sample of Norwegian doctors in 2010

  Multivariate analysis
Model 1 Model 2 Model 3 Model 4
≥1 sick days (n = 236) 1-3 sick days (n = 100) 4-99 sick days (n = 122) 100 or more sick days (n = 14)
(vs. none sick days, n = 532) (vs. none sick days, n = 532) (vs. none sick days, n = 532) (vs. none sick days, n = 532)
OR 95% CI P OR 95% CI P OR 95% CI P OR 95% CI P
Age 1.01 0.99-1.02 0.529 1.00 0.98-1.02 0.994 1.00 0.98-1.03 0.790 1.07 1.00-1.14 0.048
Male (vs. female) 0.95 0.66-1.36 0.777 1.24 0.76-2.01 0.387 0.81 0.51-1.28 0.369 0.43 0.12-1.64 0.218
Self-rated health as very good/good (vs. average/poor) 0.29 0.18-0.47 0.0001 0.71 0.34-1.50 0.371 0.20 0.12-0.35 0.0001 0.09 0.03-0.30 0.0001
>40 work hours/week (vs. 40 hours) 0.51 0.35-0.72 0.0001 0.51 0.32-0.81 0.004 0.57 0.36-0.89 0.014 0.34 0.10-1.18 0.090
Professional autonomy (score 1–7) 0.82 0.71-0.94 0.005 0.87 0.72-1.06 0.157 0.82 0.69-0.97 0.023 0.56 0.35-0.88 0.012
High levels of psychosocial work stress (vs. low levels) 0.96 0.63-1.47 0.854 0.95 0.53-1.70 0.871 0.99 0.58-1.69 0.968 0.46 0.09-2.35 0.349
Employed doctors (vs. self-employed doctors) 3.34 2.24-4.98 0.0001 3.74 2.13-6.56 0.0001 3.32 1.95-5.66 0.0001 0.83 0.23-2.93 0.766