Psychometric attributes of the rating scale for gait evaluation in Parkinson's disease.

BACKGROUND:: The RSGE-PD-V2.0 is a specific measure for evaluation of gait impairment in PD. OBJECTIVE:: To check the RSGE-PD-V2.0 metrics attributes. METHODS:: In addition to demographic and historical data of PD, applied assessments were: Hoehn and Yahr staging (HY impact in daily activities with Schwab and England scale (SE SCOPA Motor; mental status with Short portable mental status questionnaire (SPMSQ); quality of life with Parkinson's impact scale (PIMS), the Hamilton Depression Rating Scale-6 items (HDRS-6); and, the Clinical Impression of Severity Index-PD (CISI-PD). RESULTS:: 151 PD patients were included (n = 102 (67.5%) were male). Most patients were in HY SPMSQ: 1.8; HADS-6: 9.2; PIMS: 18.7;RSGE-PD-V2.0: 25.4; and, CISI-PD were 10.8. Full computable scores were 100%; Guttman's lambda, 0.954; and the item-total correlation, 0.408-0.830. Correlation coefficients (Spearman's rho) between RSGE-PD-V2.0 and HY -0.75; 0.74; 0.46; and, 0.78 respectively. RSGE-PD-V2.0 scale significantly discriminated among PD severity levels (based on H&Y staging) Kruskal-Wallis (p Language: en