Table 4.

Multivariate comparisons between employment and full work disability

	Fully work-disabled (reference: employed)
	Model 1: Block 1 + 2	Model 2: Block 1 + 2 + 3	Model 3: Block 1 + 2 + 3 + 4
	R 2 = 38.2%	R 2 = 65.4%a	R 2 = 77.4%a
	OR (95% CI)	OR (95% CI)	OR (95% CI)
1a. Socio-demographic characteristics
Age	1.08 (1.05–1.11)	1.07 (1.03–1.12)	1.08 (1.01–1.14)
Female (reference: male)	3.33 (1.98–5.59)	3.00 (1.33–6.80)	5.33 (1.64–17.36)
Level of education (reference: low)
Middle	0.57 (0.32–1.02)	0.45 (0.18–1.10)	0.32 (0.09–1.15)
High	0.20 (0.10–0.42)	0.21 (0.07–0.57)	0.20 (0.05–0.79)
1b. Illness characteristics
Time since diagnosis	1.00 (0.98–1.03)	0.99 (0.94–1.04)	0.98 (0.91–1.05)
Presence of comorbidity (reference: absence)	1.70 (0.96–3.01)	2.04 (0.86–4.85)	3.45 (0.98–12.14)
2. Medical health status
Life-threatening	1.62 (0.84–3.11)	3.09 (1.00–9.53)	2.80 (0.54–14.60)
Progressive deterioration	2.80 (1.68–4.69)	1.67 (0.77–3.64)	2.48 (0.85–7.25)
Changing course	0.78 (0.48–1.28)	1.13 (0.52–2.43)	1.07 (0.33–3.41)
Controllability by medical care	0.70 (0.42–1.15)	0.86 (0.38–1.91)	0.80 (0.24–2.61)
3. Self-reported health
Functional limitations (reference: none)
Light		3.15 (1.09–9.06)	4.31 (0.93–19.87)
Moderate		11.94 (4.06–35.10)	14.27 (2.90–70.23)
Severe		49.47 (11.55–211.87)	21.92 (2.78–172.61)
Fatigue		2.42 (1.11–5.29)	1.65 (0.56–4.87)
Pain		1.56 (0.66–3.70)	1.79 (0.55–5.79)
4. Illness perceptions
Consequences			5.34 (2.31–12.34)
Chronic timeline			0.76 (0.29–2.03)
Cyclical timeline			1.19 (0.62–2.26)
Treatment control			0.48 (0.20–1.17)
Personal control			0.91 (0.42–1.99)
Coherence			1.38 (0.69–2.75)
Causal dimensions
Psychological attributions			1.85 (0.91–3.77)
Risk factors			0.98 (0.34–2.86)
Immunity			1.05 (0.54–2.04)

R ² percentage of explained variance (Nagelkerke R ²), OR odd’s ratio, CI confidence interval of the odd’s ratio

^aModel is significantly different from previous model (P < 0.001); bold type: P < 0.05