Table 2

Summary estimates of sensitivity, specificity, and positive and negative likelihood ratios for all included studies and for sensitivity analyses at a cut point of ≥2
Application of STRATIFY rule No. of studies (patients) Sensitivity (95% CI) Variance Logit Sensitivity (95% CI) Specificity (95% CI) Variance Logit Specificity (95% CI)
All studies 17 (n = 11,378) 0.67 (0.52-0.80) 1.49 (0.63-3.53) 0.57 (0.45-0.69) 1.04 (0.49-2.21)
Studies with spectrum bias excluded 14 (n = 11,063) 0.66 (0.54-0.76) 0.69 (0.28-1.72) 0.61 (0.51-0.69) 0.49 (0.22-1.09)
Studies with no definition ‘fall’ excluded 10 (n = 4,193) 0.61 (0.42-0.78) 1.26 (0.43-3.68) 0.65 (0.55-0.74) 0.42 (0.15-1.16)
Studies with a high prevalence of falls (>10%) 9 (n = 1479) 0.58 (0.41-0.73) 0.94 (0.32-2.77) 0.58 (0.43-0 .71) 0.76 (0.28-2.08)
Studies with a low prevalence of falls (<10%) 8 (n = 9899) 0.75 (0.42-0.93) 1.12 (-0.31-2.55) 0.63 (0.43-0.79) 0.53 (-0.28-1.33)

Billington et al.

Billington et al. BMC Family Practice 2012 13:76   doi:10.1186/1471-2296-13-76

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