Table 2. Odds ratios with confidence intervals obtained from unadjusted and adjusted logistic models for sick leave improvement

	Unadjusted models, n = 158^a			Adjusted model, n = 104
Characteristic	OR	P	95% CI	OR	P	95% CI
Depression	1.10	0.512	0.82 to 1.47	1.26	0.231	0.86 to 1.86
Female	0.97	0.946	0.41 to 2.31	1.08	0.899	0.31 to 3.76
Age	1.02	0.296	0.99 to 1.05	0.99	0.628	0.95 to 1.03
Number of children	1.31	0.106	0.94 to 1.81	1.41	0.150	0.88 to 2.24
Educational level
High school (10–13 years)	1.33	0.615	0.43 to 4.09	0.96	0.961	0.22 to 4.16
Higher education institutions (>13 years)	1.23	0.709	0.42 to 3.59	1.72	0.441	0.43 to 6.80
Living alone	1.94	0.065	0.96 to 3.91	3.23	0.032	1.11 to 9.42
Long-term benefits (>12 months)	0.97	0.960	0.32 to 2.91	1.38	0.654	0.33 to 5.73
Number of PPS symptoms	1.13	0.384	0.86 to 1.48	1.32	0.158	0.90 to 1.94

^aOwing to missing values, the number of observations varied between 120 and 158 in the unadjusted models. The adjusted model included all predictor variables from the unadjusted. OR = odds ratio. PPS = persistent physical symptoms.