Independent Validation of the SEND-PD and Correlation with the MDS-UPDRS Part IA

Table 3

Correlation between SEND-PD and MDS-UPDRS part IA related items and domains.

		MDS-UPDRS 1A
		Item 1.2; (hallucinations/psychosis)	Item 1.3; (depressive mood)	Item 1.4; (anxiety)	Item 1.5; (apathy)	Item 1.6; (dopaminergic dysregulation)
SEND-PD	Item 4; (hallucinations)	0.92	0.24	0.25	0.09	0.13
	Total subscale 1; (psychotic symptoms)	0.64	0.30	0.36	0.21	0.19
	Item 6; (apathy)	0.23	0.44	0.34	0.67
	Item 8; (depression)	0.20	0.96	0.47	0.37	0.18
	Item 9; (anxiety)	0.25	0.48	0.98	0.31	0.23
	Total subscale 2; (mood/apathy)	0.26	0.75	0.71	0.63	0.19
	Item 12; (abuse of dopaminergic drugs)	0.20	0.17	0.21		0.83