Table 4.

Pearson correlations (95% confidence intervals) for concurrent (convergent) validity involving NPI-C and selected scales by CDR (patient severity) rating.

	CDR 1(mild) N=60	CDR 2 (moderate) N=54	CDR 3 (severe) N=43
NPI-C Apathy × AI	0.89 (0.82–0.93)	0.910 (0.85–0.95)	0.796 (0.65–0.89)
NPI-C Agitation × CMAI	0.691 (0.53–0.80)	0.619 (0.42–0.76)	0.745 (0.57–0.85)
NPI-C Aggression × CMAI	0.615 (0.43–0.75)	0.717 (0.56–0.83)	0.710 (0.52–0.83)
NPI-C Depression × CSDD	0.701 (0.54–0.81)	0.648 (0.46–0.78)	0.579 (0.34–0.75)
NPI-C Delusion × BPRS	0.514 (0.300–0.68	0.53 (0.30–0.69)	0.645 (0.43–0.79)
NPI-C Aberrant Vocalization X CMAI	0.650 (0.47–0.77)	0.631 (0.44–0.77)	0.09 (−0.22–0.38)
NPI-C Hallucinations × BPRS	0.146 (−0.11–0.39)	0.080 (−0.19–0.34)	0.258 (−0.05–0.52)