Table 2.

Mediation Analyses

Model 1	Predictor: UPDRS-A		DL DV: Stigma		Mediator: GDS
	Path	B	SE	T	P	95% CI
	a	0.36	0.04	9.13	<.0001	0.28, 0.43
	b	0.93	0.23	4.14	<.0001	0.49, 1.38
total effect	c	0.49	0.15	3.37	0.0008	0.20, 0.77
direct effect	c - (a*b)	0.16	0.14	1.11	0.27	−0.12, 0.44
indirect effect	c’	0.33	0.10			0.18, 0.56

Model 2	Predictor: UPDRSMotor		DV: Stigma		Mediator: GDS
	Path	B	SE	T	P	95% CI
	a	0.14	0.02	7.73	<.0001	0.11, 0.18
	b	1.05	0.27	4.86	<.0001	0.63, 1.48
total effect	c	0.14	0.08	1.79	0.07	−0.01, 0.30
direct effect	c - (a*b)	−0.01	0.08	−0.11	0.92	−0.16, 0.14
indirect effect	c’	0.15	0.04			0.09, 0.25

Model 3	Predictor: UPDRS-A		DL DV: Stigma		Mediator: Age
	Path	B	SE	T	P	95% CI
	a	0.21	0.06	3.46	0.0006	0.09, 0.33
	b	−0.37	0.12	−2.98	0.0031	−0.61, −0.13
total effect	c	0.51	0.14	3.58	0.0003	0.23, 0.80
direct effect	c - (a*b)	0.59	0.15	4.04	<.0001	0.30, 0.88
indirect effect	c’	−0.08	−0.03			−0.16, −0.03

Model 4	Predictor: UPDRSMotor		DV: Stigma		Mediator: Age
	Path	B	SE	T	P	95% CI
	a	0.15	0.04	4.15	<.0001	0.08, 0.23
	b	−0.37	0.14	−2.71	0.007	−0.64, −0.10
total effect	c	0.16	0.08	2.00	0.046	0.003, 0.31
direct effect	c - (a*b)	0.21	0.08	2.63	0.009	0.05, 0.37
indirect effect	c’	−0.06	0.02			−0.11, −0.03

UPDRS-ADL = Unified Parkinson’s Disease Rating Scale Activities of Daily Living Section; UPDRS-Motor = Unified Parkinson’s Disease Rating Scale Motor Section; DV = dependent variable; B = unstandardized regression coefficient; SE = Standard Error; t = t-value; 95% CI = 95% confidence interval