The non-motor symptoms of Parkinson’s disease of different motor types in early stage

OBJECTIVE: We aimed to compare the different non-motor symptoms of different motor phenotype Parkinson's disease (PD) at an early stage.

PATIENTS AND METHODS: From January 2013 to November 2016, 120 cases of PD patients who were hospitalized in Neurology Department of the First Hospital of Huai'an in Jiangsu Province and 120 cases of healthy controls with matched age and gender, were included into the research. PD patients were administered with Non-Motor symptom questionnaire (NMSQuest), the Unified Parkinson's Disease Rating Scale III (UPDRS-III), the Mini-Mental State Examination score (MMSE), the Hoehn-Yahr classification, the MoCA, and GDS-15. The relationship between NMS burden and PD subtypes, age, gender and disease severity were examined using linear regression models. The prevalence of each NMS among different PD motor subtypes was analyzed using x2 test.

RESULTS: Compared with the healthy controls, PD patients had a higher number of NMS. The prevalence of NMS in postural instability gait difficulty (PIGD) group is higher than that in tremor dominant (TD) group. There is no significant correlation between age, gender, MMSE scores, MoCA scores and the number of NMS. PD patients with higher UPDRS-III scores and a longer course of disease had a higher prevalence of NMS.

CONCLUSIONS: NMS is also common in PD patients at an early stage. The PIGD group who have more axial injuries and more severe motor symptoms, have a higher risk of NMS burden than PD patients in TD group.

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