Parkinsonics: A Randomized, Blinded, Cross-Over Trial of Group Singing for Motor and Nonmotor Symptoms in Idiopathic Parkinson Disease

Table 4

MDS-UPDRS subscales.

Comparison (adjusted for presinging baseline)		Part 1			Part 2			Part 3			Part 4
		Δ	value	R^2	Δ	value	R^2	Δ	value	R^2	Δ	value	R^2
Overall cohort (weeks compared)	12–BL	−0.4	0.839	0.006	−3.6	0.058	0.168	0.7	0.748	0.018	−2.7	0.109	0.358
	24–12	−1.4	0.370	0.354	−0.3	0.888	0.011	3.0	0.435	0.029	−1.4	0.275	0.142
	24–BL	−0.7	0.676	0.065	−3.3	0.118	0.096	3.7	0.285	0.11	−2.4	0.221	0.246
Singing 1st vs. singing 2nd	Δ from start to end interventions	−1.5	0.404	0.281	−3.6	0.051	0.171	−6.9	0.110	0.164	−1.0	0.427	0.264
	Δ final visit (week 30) vs. end interventions (week 24)	−0.7	0.620	0.018	−1.9	0.133	0.105	−3.9	0.350	0.189	−1.2	0.303	0.106