Table 3.

Summary of linear regression analyses on variables to explain variance in job satisfaction in the four different age groups

Independent variables	<35 years (N = 192)			35–44 years (N = 314)			45–54 years (N = 354)			>55 years (N = 252)
	β			β			β			β
Model	1	2	3	1	2	3	1	2	3	1	2	3
Control variables
Presence of chronic diseasea	−0.01	−0.01	−0.05	0.02	0.03	0.05	−0.04	−0.03	−0.01	−0.10	−0.12	0.02
Normal job performance is impeded by poor healtha	0.02	0.05	0.02	−0.18	−0.14	−0.10	−0.15	−0.06	−0.08	−0.29	−0.18	−0.14
Sex (woman)	−0.03	−0.03	0.01	0.03	−0.01	0.02	0.07	0.05	0.06	0.12	0.12	0.12
Job classification (staff)	−0.12	−0.11	0.07	−0.26	−0.28	−0.09	−0.09	−0.15	−0.08	−0.11	−0.18	−0.09
R 2 first model	0.01			0.09			0.03			0.14
Demands
Problems with workloada		−0.14	−0.09		−0.08	−0.05		−0.12	−0.08		−0.13	−0.07
Work-home facilitation		0.08	0.04		0.06	−0.03		0.08	0.01		0.02	−0.03
Conflicts at worka		−0.39	−0.15		−0.27	−0.07		−0.34	−0.03		−0.33	0.01
Able to relax sufficiently at home from job demands		0.10	0.03		0.07	0.05		0.14	0.12		0.06	−0.03
ΔR 2 second model		Δ0.20			Δ0.10			Δ0.18			Δ0.12
Resources
Skill discretion			0.55			0.60			0.47			0.49
Autonomy			−0.03			−0.03			0.10			−0.01
Support from supervisor			0.09			0.07			0.07			0.12
Relation with colleagues			0.14			0.08			0.24			0.25
Opportunities for further education			0.03			0.06			−0.04			0.14
ΔR 2 final model			Δ0.32			Δ0.36			Δ0.34			Δ0.39
R 2 final model			0.53			0.55			0.55			0.65

Bold values represent significance at ≤0.05

^aHigher scores indicate less favourable scores (range 1–5); mean scores of 2.5 and less were considered satisfactory