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