tendency toward significancep = 0.066
However, after post hoc analysis, only a tendency toward significance was found between HC and FGD groups ( p = 0.066).
However, after post hoc analysis, only a tendency toward significance was found between HC and FGD groups ( p = 0.066).
To reduce the effect of age which showed an almost significant difference between FGD subjects and the two groups of iPD participants ( p = 0.07 and 0.06, respectively), between-group comparisons were assessed by analysis of covariance (ANCOVA) with one between-group factor (group: HC, iPD-FOG, iPD-noFOG, and FGD) and the factor “age” as covariate.