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. Author manuscript; available in PMC: 2018 Jan 1.
Published in final edited form as: Lancet Neurol. 2016 Nov 18;16(1):66–75. doi: 10.1016/S1474-4422(16)30328-3

Table 4.

Model for prediction of cognitive impairment in patients with newly diagnosed Parkinson’s disease

Regression coefficient Odds ratio (95% CI) p value
RBDSQ 0·123 1·131 (1·001–1·277) 0·048
CSF Aβ42 −0·006 0·994 (0·990–0·997) 0·001
UPSIT −0·061 0·941 (0·896–0·988) 0·015
Mean caudate uptake −0·578 0·561 (0·283–1·113) 0·090
Age 0·051 1·053 (1·005–1·103) 0·029
Intercept −1·051 0·350 0·605

Bootstrapped results of multivariate logistic regression with all statistically significant (p<0·0005) clinical and biomarker variables (including imputed missing values). RBDSQ=Rapid Eye Movement Sleep Behaviour Disorder Screening Questionnaire. UPSIT=University of Pennsylvania Smell Inventory Test.