Using the Satisfaction with Life Scale in People with Parkinson’s Disease: A Validation Study in Different European Countries

Table 3

Concurrent validity 1: multiple linear regression models’ results for SWLS-dependent variables are WHOQOL general perceived quality of life (q1), self-rated health (q2), four WHOQOL-BREF dimensions (physical, psychological, social relationships, and environmental well-being), and WHOQOL disability module.

	Dependent variables
	Overall QoL^1	Self-rated health^2	Physical health; (WHOQOL)	Psychological health; (WHOQOL)	Social relationships; (WHOQOL)	Environment; (WHOQOL)	WHOQOL disability module
	Model 1	Model 2	Model 3	Model 4	Model 5	Model 6	Model 7
	Beta	Beta	Beta	Beta	Beta	Beta
(Constant)	𝑃<0.001	𝑃=0.01	𝑃<0.001	𝑃<0.001	𝑃<0.001	𝑃<0.001	𝑃<0.001
Age	−0.05	0.02	−0.002	−0.12*	−0.10*	−0.10*	−0.19**
S1 In most ways my life is close to my ideal	0.03	0.05	0.11	0.07	0.05	−0.04	0.02
S2 The conditions of my life are excellent	0.20**	0.08	0.12	0.02	−0.001	0.21**	0.12*
S3 I am satisfied with my life	0.36**	0.37**	0.12	0.35**	0.24**	0.18**	0.15*
S4 So far I have gotten the important things I want in life	0.02	0.04	0.14*	0.07	0.17**	0.24**	0.09
S5 If I could live my life over, I would change almost nothing	−0.04	0.07	0.06	0.08	0.12*	0.11*	0.16**
	Model 8	Model 9	Model 10	Model 11	Model 12	Model 13	Model 14
(Constant)	𝑃<0.001	𝑃<0.001	𝑃<0.001	𝑃<0.001	𝑃<0.001	𝑃<0.001	𝑃<0.001
Age	−0.073	0.01	−0.01	−0.13*	−0.11*	−0.10*	−0.18**
Total SWLS	0.46**	0.48**	0.41**	0.46**	0.43**	0.52**	0.40**

^∗𝑃<0.05.
^∗∗𝑃<0.001.
1Overall QoL (q1). “How would you rate your QoL?.”
2Satisfaction with health (q2). “How satisfied are you with your health?.”