- Note: Data are presented as the mean ± standard deviation (Mean ± SD)
- Abbreviations: NFL neurofilament light chain; PD Parkinson disease; PIGD postural instability/gait disturbances dominant; TD tremor dominant
- Parameters were analyzed with analysis of variance using Bonferroni as post hoc test in the case of normal distribution of data. For variables that did not display a normal distribution, data were compared between TD-PD and PIGD-PD groups by Mann-Whitney U test. Sex was analyzed using χ2 test.