From: Evaluating the discriminatory power of the velocity field diagram and timed-up-and-go test in determining the fall status of community-dwelling older adults: a cross-sectional observational study
TUG
VFD
Test condition
Positive
Negative
Total
Estimated sensitivity of VFD
estimated specificity of VFD
70
130
200
63.63%
23.53%
negative
40
80
110
170
280