Task: Answer Verification
Input (English): Question: Does severity of mild cognitive impairment in early Parkinson 's disease contribute to poorer quality of life?
Answer: PD-MCI is a significant, independent factor contributing to poorer QoL in patients with newly diagnosed PD. Those classified with greatest impairment (2.0 SD below normal values) have lower QoL. This has implications for clinical practice and future interventions targeting cognitive impairments.
Output (English): yes