TABLE 1.

Considerations for nomenclature

Young‐onset Parkinson's disease (YOPD) Might stigmatize younger patients further as being “too young” to develop Parkinson's disease. Might stigmatize patients who are older than the age cutoff as being old, while many are still in their 50s or early 60s, with the definition of “old” being constantly revised with the progress of medical care and increase in life expectation.

Early‐onset Parkinson's disease (EOPD) Delineates that Parkinson's disease developed earlier than average, without stigmatizing patients one way or the other.