Table 2.

Sensitivity and specificity of different cut-off values

Cut-offSensitivity (%)Specificty (%)
<0.8539.3 (31.1 to 47.8)96.8 (94.9 to 98.2)
<0.9049.0 (40.6 to 57.4)94.8 (92.5 to 96.6)
<0.9553.1 (44.7 to 61.4)93.2 (90.7 to 95.3)
<1.0064.1 (55.8 to 71.9)91.0 (88.2 to 93.4)
<1.0574.5 (66.6 to 81.4)84.4 (81.0 to 87.5)
<1.1078.6 (71.2 to 85.0)75.9 (71.9 to 79.5)
<1.1586.9 (80.3 to 91.9)62.9 (58.5 to 67.1)
  • 95% confidence interval.