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Chinese Journal of Brain Diseases and Rehabilitation(Electronic Edition) ›› 2026, Vol. 16 ›› Issue (04): 220-225. doi: 10.3877/cma.j.issn.2095-123X.2026.04.004

• Short Article • Previous Articles    

Characteristics and influencing factors of dysphagia in Parkinson disease patients

Wanlan Zhang, Lifang Zhang†(), Qiaoyi Huang, Weiwei Huang, Keyi Chen, Xing Jiang   

  1. Department of Rehabilitation, The Eighth People's Hospital of Longgang District in Shenzhen, Shenzhen 518100, China
  • Received:2025-02-23 Online:2026-08-15 Published:2026-10-23
  • Contact: Lifang Zhang
  • Supported by:
    2023 Medical and Health Science and Technology Plan Project (Non-funded), Longgang District Health Bureau of Shenzhen(LGWJ2023-149)

Abstract:

Objective

To explore the characteristics of swallowing disorders and their influencing factors in Parkinson disease (PD) patients, aiming to provide a reference for the early detection, diagnosis, and intervention of swallowing disorders in this population.

Methods

Thirty-four PD patients admitted to The Eighth People's Hospital of Longgang District in Shenzhen from June 2023 to April 2025 were consecutively enrolled. Their general data, characteristics of swallowing disorders, and the relationship with disease duration and cognitive function were analyzed. The characteristics of swallowing disorders were analyzed using the incidence rates of various manifestations, and influencing factors were analyzed using binary Logistic regression.

Results

Among the 34 PD patients, swallowing delay had the highest incidence (88.2%), followed by premature spillage and residue (both 55.9%). As the intake volume increased, the incidence rates of all three swallowing disorder manifestations showed a significant upward trend (P<0.05). Binary Logistic regression analysis revealed that disease duration was not an independent influencing factor for swallowing delay, premature spillage or residue (P>0.05). The MoCA score was an independent protective factor for premature spillage with 10 mL low-thickened and 5 mL high-thickened boluses, and an independent risk factor for residue with 5 mL high-thickened boluses (all P<0.05).

Conclusions

Swallowing delay was a common feature of dysphagia in PD patients, with the risk of swallowing impairments rising as bolus volume increased. MoCA-evaluated cognitive function was associated with premature spillage and residue, whereas disease duration had no significant impact on these three swallowing outcomes.

Key words: Parkinson disease, Dysphagia, Cognitive function, Risk factors

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