Gastrointestinal Dysfunction Impact on Life Quality in a Cohort of Russian Patients with Parkinson’s Disease I-III H&Y Stage

Table 4

Regression coefficients in the linear model for the quality of life PDQ-39 with scores according to gastrointestinal GSRS, motor symptoms UPDRS III, depression BDI, and anxiety STAI scales.

Model; dependent variable: PDQ-39 SI		Nonstandardized coefficients		Standardized coefficient	t		95.0% CI	Correlation
		B	SE	β			Lower	Upper	Zeroth order
1	Constant	−2.787	12.058		−0.231	0.818	−26.807	21.234
	BDI	0.973	0.219	0.463	4.445	0.000	0.537	1.410	0.674
	GSRS-SI	0.451	0.121	0.333	3.719	0.000	0.209	0.692	0.614
	UPDRS III	0.285	0.135	0.163	2.117	0.038	0.017	0.553	0.237
	STAI-S	0.057	0.133	0.042	0.433	0.666	−0.207	0.321	0.400
	STAI-T	0.024	0.161	0.015	0.149	0.882	-0.297	0.345	0.386
	Age	0.022	0.155	0.011	0.140	0.889	−0.288	0.331	0.211
	Sex	0.673	2.607	0.021	0.258	0.797	−4.521	5.866	−0.153

Bold indicates values for regression equation predicting the dependent variable according to the independent variable; SE: standard error; β: beta; t: t-value; : 2-tailed value (significance level); CI: confidence interval.