Table 3 Post-test probability of a fall in patients classified as high risk (≥13.5 seconds) and low risk (<13.5 seconds) using the TUG score
Application of TUG test | Pre test probability (%) | + LR (95% CI) | Post test probability (%) + LR | -LR (95% CI) | Post test probability (%) -LR |
|---|---|---|---|---|---|
All studies | 51% (49%-53%) | 1.20 (0.82-1.75) | 56% (54%-58%) | 0.93 (0.78-1.10) | 49% (47%-51%) |
Studies where TUG was administered as fast as possible excluded | 52% (49%-54%) | 1.53 (1.31-1.79) | 62% (59%-64%) | 0.79 (0.62-1.01) | 46% (44%-48%) |
Studies with duration of follow up > or < one year excluded | 53% (51%-56%) | 1.11 (0.64-1.92) | 56% (54%-59%) | 0.95 (0.73-1.24) | 52% (50%-55%) |
Studies with selection bias excluded | 52% (50%-55%) | 0.81 (0.40-1.16) | 47% (45%-50%) | 1.10 (0.72-1.71) | 54% (52%-57%) |
Studies with unclear/no details on index test excluded | 56% (54%-58%) | 1.14 (0.67-1.91) | 59% (57%-61%) | 0.95 (0.74-1.21) | 55% (53%-57%) |
Studies with unclear/no definition ‘fall’ excluded | 54% (51%-56%) | 1.50 (1.15-1.94) | 64% (61%-66%) | 0.89 (0.75-1.04) | 51% (48%-53%) |