Table 3.

Validity (Spearman r) of the Functional Gait Assessment (FGA) and Balance Evaluation Systems Test (BESTest) With Measures of Disease Severity (Hoehn and Yahr Scale, Movement Disorders Society Revision of the Unified Parkinson's Disease Rating Scale [MDS-UPDRS], and Movement Disorders Society Revision of the Unified Parkinson's Disease Rating Scale Part 3 [Motor Examination] [MDS-UPDRS-3]), Self-Perceived Balance (Activities-specific Confidence Scale [ABC]), and the Balance Reference Standard (Berg Balance Scale [BBS])^a

^aAll correlations were significant at P<.001 (2-tailed).