Table 4.

Regression analysis results.

MDS-UPDRS-III Test	Position	R	R2 *	Coefficient **	95% CI	p
Postural tremor	Sitting	0.900	0.811	2.662	2.271, 3.052	<0.001
	Supine	0.862	0.743	2.873	2.360, 3.387	<0.001
Rest tremor	Sitting	0.905	0.818	3.604	3.088, 4.121	<0.001
	Supine	0.844	0.712	4.213	3.399, 5.027	<0.001

* Coefficient of determination; ** Contrast coefficient testing for linear trend.