This statistic displays the percentage of U.S. individuals diagnosed with Parkinson's disease (PD) that experienced select cognitive changes as of 2018. According to the survey, 75 percent of PD patients experienced changes in their concentration/attention span. Parkinson's disease is a degenerative disorder that affects the nerve cells in the brain that produce dopamine. This causes muscle issues, tremors, speech changes, etc. There is currently no cure for Parkinson's disease.
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Health Union (parkinsonsdisease.net). (April 20, 2018). Percentage of U.S. Parkinson's disease (PD) patients that experienced select cognitive changes as of 2018 [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 22, 2026, from /statistics/914404/parkinsons-disease-patients-cognitive-changes-us/
Health Union (parkinsonsdisease.net). "Percentage of U.S. Parkinson's disease (PD) patients that experienced select cognitive changes as of 2018." Chart. April 20, 2018. ÌÇÐÄÆƽâ°æ. Accessed July 22, 2026. /statistics/914404/parkinsons-disease-patients-cognitive-changes-us/
Health Union (parkinsonsdisease.net). (2018). Percentage of U.S. Parkinson's disease (PD) patients that experienced select cognitive changes as of 2018. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 22, 2026. /statistics/914404/parkinsons-disease-patients-cognitive-changes-us/
Health Union (parkinsonsdisease.net). "Percentage of U.S. Parkinson's Disease (Pd) Patients That Experienced Select Cognitive Changes as of 2018." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 20 Apr 2018, /statistics/914404/parkinsons-disease-patients-cognitive-changes-us/
Health Union (parkinsonsdisease.net), Percentage of U.S. Parkinson's disease (PD) patients that experienced select cognitive changes as of 2018 ÌÇÐÄÆƽâ°æ, /statistics/914404/parkinsons-disease-patients-cognitive-changes-us/ (last visited July 22, 2026)
Percentage of U.S. Parkinson's disease (PD) patients that experienced select cognitive changes as of 2018 [Graph], Health Union (parkinsonsdisease.net), April 20, 2018. [Online]. Available: /statistics/914404/parkinsons-disease-patients-cognitive-changes-us/
