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Table 3 Stepwise multiple regression analysis for PDQoL7 and PDQ-8 scores

From: Evaluation and validation of a patient-reported quality-of-life questionnaire for Parkinson’s disease

Clinical features Estimate (95% CI) Standard error P-value Adjusted R2
PDQoL7     
Disability-Off index 0.15 (0.07, 0.23) 0.04 0.001 0.612
Disability-LID index 0.11 (0.02, 0.21) 0.05 0.024  
Non-motor questionnaire score 3.38 (1.98, 4.79) 0.70  < 0.001  
PDQ-8     
Disability-Off index 0.18 (0.09, 0.27) 0.05  < 0.001 0.536
Disability-LID index 0.15 (0.03, 0.27) 0.06 0.012  
Cognitive impairment 2.30 (0.85, 3.75) 0.72 0.002