The Natural History of Depression in Parkinson’s Disease within 30-Month Follow-Up

Figure 1

Clinical and demographic correlates of change in HDRS were shown in a linear regression equation. value represents coefficient. Abbreviations: PD: Parkinson’s disease; HDRS: Hamilton Depression Rating Scale; MMSE: Mini-Mental State Examination; UPDRS-II: The Unified Parkinson Disease Rating Scale for motor; UPDRS-III: The Unified Parkinson Disease Rating Scale for Activities of Daily Living.

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