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Table 5 Comparison of the diagnostic power of the measurement methods

From: Bioimpedance spectroscopy for swelling evaluation following total knee arthroplasty: a validation study

Diagnostic power comparison
Stage Variable AUC [95% IC] Threshold Sensitivity (%) Specificity (%)
D2 BIS R0 0.99* [0.98 - 1.00] 13.4 0.96 0.96
Volume 0.84* [0.72 - 0.96] 6.1 0.83 0.79
Circumference 0.91* [0.81 - 1.00] 5.6 0.92 0.83
D8 BIS R0 1.00* [0.99 - 1.00] 13.8 1 0.96
Volume 0.92* [0.84 - 1.00] 7.7 0.92 0.92
Circumference 0.95* [0.90 - 1.00] 5.8 0.96 0.88
  1. Legends = AUC: area under the curve; [95% IC]: 95% confidence interval; *: P < 0.01; BIS R0: Bioimpedance spectroscopy.