Predicting Cognitive Decline in Parkinson’s Disease with Mild Cognitive Impairment: A One-Year Observational Study

Table 3

Binary logistic regression of predictors for cognitive decline in participants with PD-MCI.

Cognitive Decline
Independent Variables	B	S. E.	Wald	value
(Intercept)	0.315	6.074	0.003	0.959
Female	7.534	3.600	4.379	0.036
CDR-SB	3.502	1.681	4.342	0.037
Forwards digit recall	−0.938	0.703	1.782	0.182
Boston naming test	−0.154	0.278	0.306	0.580
PSQI > 5	−4.710	3.056	2.375	0.123
Multivariate classification results	Full model (all variables)		Reduced model (female + CDR-SB)
Area under the curve	0.974		0.822
value	0.000		0.000
Sensitivity	88.89%		40.00%
Specificity	95.24%		92.00%
Positive predictive value	88.89%		66.67%
Negative predictive value	95.24%		79.31%
Positive likelihood ratio	18.67		5
Negative likelihood ratio	0.12		0.65
Accuracy	93.33%		77.14%

Statistically significant values compared between the groups.