The PRIAMO study: urinary dysfunction as a marker of disease progression in early Parkinson's disease.

Background and purpose: New venues are currently being explored to predict disease progression in Parkinson's disease (PD), such as non-motor subtypes and models merging motor and non-motor symptoms (NMS). By involving a subgroup of 585 patients from the PRIAMO (Parkinson Disease Non-motor Symptoms) study, the present 24-month longitudinal prospective analysis aimed to demonstrate that urinary dysfunction is an early marker of higher motor and non-motor burden as well as lower health-related quality of life. Methods and results: Multivariable mixed-effect logistic regression models controlling for demographic and clinical variables showed that the following NMS domains were associated with urinary dysfunction: gastrointestinal [odds ratio (OR) 2.57, 95% confidence interval (CI) 1.67–3.97, P < 0.001], cardiovascular (OR 2.22, 95% CI 1.18–4.17, P = 0.013), skin (OR 1.81, 95% CI 1.06–3.08, P = 0.029), sleep (OR 2.06, 95% CI 1.34–3.16, P = 0.001), pain (OR 1.85, 95% CI 1.21–2.83, P = 0.004...