The authors designed a closed-ended, multiple choice set of questions related to patient nOH symptomology and perception of disease burden. The survey was conducted online by Harris Poll between August 26, 2016 and Oct 3, 2016 on behalf of Lundbeck. Patient organizations including The Michael J. Fox Foundation for Parkinson’s Research, American Parkinson Disease Association, Davis Phinney Foundation, MSA Coalition, National Parkinson Foundation, and Parkinson’s Disease Foundation helped to recruit patients for the US-based survey. Survey respondents included 363 patients and 128 care partners, and primary diagnosis of Parkinson’s disease was self-selected in 90 percent of patients. In addition, 10 percent of patients reported multiple system atrophy and 4 percent reported pure autonomic failure. Similar rates of patient diagnosis were reported by care partners. Despite meeting survey criteria, a formal diagnosis of OH or nOH was reported by 36 percent of patients. This study represents the views of a limited sample of nOH patients and may not be representative of all patients with nOH. Other limitations of this study include that care partners were not required to be paired with patients included in the survey, so it is not possible to draw conclusions regarding the consistency of responses between patients and their care partners.