Prevalence and Factors Associated with Drooling in Parkinson’s Disease: Results from a Longitudinal Prospective Cohort and Comparison with a Control Group

Figure 2

(a) Number of patients reporting drooling at V0, V1, and V2 when they were divided in patients with vs. without dysphagia and with vs. without hypomimia (the whole cohort). A comparison between the percentage is shown for each analysis. (b) Number of patients from the PD ≤ 2 y group reporting drooling at V0, V1, and V2 when they were divided in patients with vs. without dysphagia and with vs. without hypomimia. A comparison between the percentage is shown for each analysis. PD: Parkinson’s disease. PD ≤ 2 y group: patients with ≤2 years since symptom onset.

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