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Table 5 GRADE system quality of evidence analysis for the Berg Balance Scale and the Timed Up and Go (TUG) test

From: Virtual reality therapy for rehabilitation of balance in the elderly: a systematic review and META-analysis

Quality assessment Quality Importance
Number of studies Design Serious limitations (risk of bias)? Inconsistency of results (heterogeneity)? Indirect evidence? Inaccuracy? Publishing bias?
Berg Scale
6 Quasi-experimental studies and RCTs No No No Very important Sim ++ / ++++ Low Critical
TUG Test
5 Quasi-experimental studies and RCTs No Low No Very important Sim +++ / ++++ Very Low Critical
  1. TUG Timed Up and Go
  2. GRADE Grading of Recommendations Assessment, Development and Evaluation