Independent variables

ADL scores of cognitively impaired patients (n = 24)

ADL scores of cognitively unimpaired patients (n = 16)

Age

0.562*

0.528*

Duration of disease

−0.714**

0.57*

UPDRS

−0.834**

0.55*

Hoehn & Yahr staging

0.118

0.297

MMSE

0.581*

−0.396

MoCA

0.623*

−0.255