Non-motor symptoms in Parkinson's disease – a cross sectional analysis of 3414 patients enrolled in the German Network on Parkinson's disease (KNP e.V.)

It is increasingly recognised that non-motor symptoms contribute considerably to the burden of illness in Parkinson's disease (PD) patients but little information is available on the frequency of autonomic symptoms in PD. The German Competence Network on Parkinson's disease (KNP e.V.) is a nation-wide network, founded to promote information and research on PD and related disorders in Germany. A central internet-accessible database is used to collect and store the pseudonymised clinical data. The registry data collected up to 28.03.2006 were used for the present analysis; at that time over 5000 patients and relat…