OBJECTIVE To assess the frequency of somatization and its association with motor, nonmotor symptoms, and quality of life in persons with Parkinson disease (PD). METHODS A cross-sectional case-control study was carried out. Assessments included the List of 90 Symptoms somatic factor (SCL-90-R SOM), Movement Disorder Society Unified Parkinson's Ratings Scale (MDS-UPDRS), Non-Motor Symptom Scale (NMSS), Montreal Cognitive Assessment (MoCA), and Parkinson Questionnaire-8 (PDQ-8). RESULTS A total 93 persons with PD and 93 controls were included. Somatization within the PD group was 2 times more frequent compared to the control group (43% vs 21.5%, P = .003). Persons with PD had higher NMSS total scores (48.6 ± 42.6 vs 28.3 ± 30.4, P = .001). Patients with PD with somatization had worst MDS-UPDRS, NMSS, MoCA, and PDQ-8 (all P < .05). CONCLUSION Somatization is more frequent in persons with PD compared to healthy controls. Somatization in PD is associated with nonmotor symptoms and worst quality of life.

中文翻译：

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帕金森病患者的躯体化与非运动症状严重程度之间的关联。

目的评估帕金森病（PD）患者的躯体化频率及其与运动，非运动症状和生活质量的关系。方法进行横断面病例对照研究。评估包括90种症状的躯体因素（SCL-90-R SOM），运动障碍学会统一帕金森氏量表（MDS-UPDRS），非运动症状量表（NMSS），蒙特利尔认知评估（MoCA）和帕金森问卷调查表-8（PDQ-8）。结果总共包括93名PD患者和93名对照。与对照组相比，PD组的躯体化频率高出2倍（43％比21.5％，P = 0.003）。PD患者的NMSS总分较高（48.6±42.6 vs 28.3±30.4，P = .001）。患有躯体化的PD患者的MDS-UPDRS，NMSS，MoCA和PDQ-8最差（所有P <.05）。结论与健康对照组相比，PD患者的躯体化更为频繁。PD的躯体化与非运动症状和最差的生活质量有关。