[Risk factors for fractures in Parkinson's disease: a questionnaire survey].

This study investigated the risk factors for fractures in patients with Parkinson's disease (PD). A questionnaire specifically designed to examine these risk factors was mailed to 172 PD patients registered in our self-developed PD database. We subsequently received replies from 158 patients, 22(14.8%)of whom had experienced fractures after PD onset. A multiple logistic regression model was used to evaluate the responses, and together with the clinical information stored in our PD database, it was revealed that psychiatric symptoms and falls within 1 year of our investigation were statistically correlated with the occurrence of fractures (adjusted odds ratio: 4.8 and 3.6, respectively). Thus, these results emphasize that psychiatric symptoms are an essential risk factor for fracture in PD patients.