Table 2

Correlations of neuropsychiatric inventory (NPI) composite scores, motor, and global cognitive scores in corticobasal degeneration

	Depression	Apathy	Irritability	Agitation	Anxiety	Disinhibition	Delusions	Aberrant motor behaviour	Total NPI	Duration	Motor score	MMSE	MDRS
Depression
Apathy	−0.05
Irritability	0.03	0.72^**
Agitation	0.05	0.10	0.25
Anxiety	0.26	0.62^†	0.33	0.36
Disinhibition	−0.23	0.67^*	0.85^***	0.36	0.42
Delusions	0.03	0.49	0.58^†	0.62^†	0.68^**	0.68^**
Aberrant motor behaviour	0.03	0.49	0.58^†	0.62^†	0.68^**	0.68^**	1.0^***
Total NPI score	0.60^†	0.58^†	0.67^*	0.31	0.55	0.59^†	0.44	0.44
Duration	0.15	0.13	0.31	0.22	0.27	0.53^†	0.31	0.31	0.51
Motor score	0.26	−0.03	0.18	0.17	0.36	0.27	0.31	0.31	0.35	0.69^**
MMSE	0.01	0.01	0.37	0.25	−0.02	0.48	0.41	0.41	0.29	0.51	0.50
MDRS	−0.26	−0.22	0.31	−0.13	−0.30	0.31	—	—	−0.12	0.27	0.39	0.78^**
Verbal fluency	−0.23	−0.78^†	−0.65	−0.12	−0.58	−0.42	−0.49	−0.49	−0.64	0.12	0.13	0.07	0.55

Adjusted α= 0.01 was required for significance. ^†p<0.03;^*p⩽0.01; ^**p⩽0.005; ^***p⩽0.001.