Work environment, job satisfaction and burnout among Spanish dentists: a cross-sectional study

Table 5 Multiple regression analysis for different outcomes (dimensions of work environment, job satisfaction and burnout) according to independent variables (working hours per week, years worked and age)

	Beta	95% CI	p value	R² (%)
Model 1. Communication
Working hours per week	0.079	0.027–0.131	0.003**	2.8
Model 2. Decision making
Years worked	0.012	0.005–0.019	0.001**	3.7
Model 3. Stress/chaos
Age	− 0.020	− 0.029 to − 0.011	< 0.001***	6.2
Model 4. History of change
Working hours per week	0.125	0.034–0.216	0.007**	3.7
Age	0.010	0.001–0.018	0.025*
Model 5. Overall work environment
Working hours per week	0.078	0.040–0.117	< 0.001***	4.9
Model 6. Overall job satisfaction
Years worked	0.022	0.009–0.035	0.001**	3.5
Model 7. Burnout
Working hours per week	0.107	0.004–0.210	0.042*	1.3

The stepwise method was used to enter significant independent variables into the model. Beta coefficients and 95% confidence intervals, p value and R² of the model
^***Significant association (p < 0.001, two-tailed); **Significant association (p < 0.01, two-tailed); *Significant association (p < 0.05, two-tailed)