Fig. 2: Survival plots by ePIRS quartile in PPMI.
From: The emerging postural instability phenotype in idiopathic Parkinson disease
Properties of the ePIRS are shown in the full sample (Top) and in two validation sets. In both validation sets, membership in ePIRS quartile 4 is a significant predictor of later development of postural instability (HY 3) compared to both controls, and membership in Quartile I.
