Some of the most common losses in Parkinson’s disease (PD) are the changes in executive functions. The Trail Making Test is an important test to evaluate the executive functions. The objective of this study was to verify the cutoff point of the Trail Making Test for individuals with PD compared to healthy controls. This was a cross-sectional case-control study. The inclusion criteria for the case group were a diagnosis of PD and having taken PD medicine before the evaluation. Individuals with other neurological disorders and atypical or secondary parkinsonism were excluded. The inclusion criterion for the control group was absence of neurological impairment, and participants were paired by age and level of education with patients with PD. The following protocols were applied to individuals from the two groups: Mini-Mental State Examination (MMSE) and Trail Making Test (TMT) A and B and verbal TMT (vTMT) A and B. The sample was composed of 78 individuals, with 39 persons in both groups. In the Mann-Whitney test, a significant difference was verified in TMT A and B and vTMT B between the groups, and the case group presented worse results. We suggest a cutoff point for TMT A of 103 seconds, TMT B of 297.5 seconds, and vTMT B of 77.5 seconds. In conclusion, the TMT B verbal and written test can differentiate patients with PD from healthy controls. It can be used as a fast application test for executive function screening.
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