Application of STRATIFY rule | Pre test probability (%) | + LR (95% CI) | Post test probability (%) + LR | -LR (95% CI) | Post test probability (%) -LR |
---|---|---|---|---|---|
All studies | 6.27% (5.84%-6.74%) | 1.58 (1.34-1.86) | 9.58% (8.26%-11.09%) | 0.57 (0.43-0.75) | 3.67% (2.8%-5.03%) |
Studies with spectrum bias excluded | 5.93% (5.51%-6.39%) | 1.67 (1.43-1.95) | 9.53% (8.29%-10.93%) | 0.56 (0.45-0.71) | 3.44% (2.75%-4.29%) |
Studies with no definition ‘fall’ excluded | 11.9% (10.96%-12.92%) | 1.76 (1.48-2.12) | 19.27% (16.62%-22.24%) | 0.59 (0.41-0.85) | 7.4% 5.25%-10.32% |
Studies with a high prevalence of falls (>10%) | 24.41% (22.24%-26.68%) | 1.39 (1.21-1.60) | 30.98% (28.08%-34.03%) | 0.72 (0.59-0.87) | 18.82% (15.99%-22.03%) |
Studies with a low prevalence of falls (<10%) | 3.57% (3.22%-3.95%) | 2.03 (1.69-2.44) | 6.99% (5.89%-8.28%) | 0.39 (0.18-0.86) | 1.42% (0.65%-3.08%) |