Associations of Nonmotor Symptom Burden, Activities of Daily Living, and Fear of Falling in Parkinson Disease

ABSTRACT: BACKGROUND: Parkinson disease (PD), a neurodegenerative disease characterized by motor and nonmotor symptoms, can affect the daily activities of individuals. This study was conducted to determine nonmotor symptom burden in patients with PD and to reveal the relationship of nonmotor symptom burden with activities of daily living and fear of falling. METHODS: This cross-sectional and correlational study was carried out with 309 patients given a diagnosis of PD. The data were collected using a personal information form, the Non-Motor Symptoms Scale, the Katz Activities of Daily Living Scale, and the Fear of Falling Questionnaire. RESULTS: Whereas 70.2% of the patients had very high nonmotor symptom severity levels, 33.7% were semidependent or dependent in terms of performing their activities of daily living. The fear of falling was experienced by 32.7% of the patients. A statistically significant inverse relationship was found between the mean Non-Motor Symptoms Scale scores of the patients and their mean Katz Activities of Daily Living Scale and Fear of Falling Questionnaire scores ( P < .05). Nonmotor symptom burden independently explained 66% of the total variance in the performance of activities of daily living and 69% of the total variance in fear of falling ( P < .01). CONCLUSION: Nonmotor symptom burden in PD patients is a significant determinant for participation in activities of daily living and fear of falling. Nurses should approach patients with PD with a focus not only on assessing motor symptoms but also on assessing nonmotor symptoms.