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Table 2 Comparison of the measured swelling according to the measurement method

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

Percentage difference with healthy side (mean SD)
  Volume mean (SD) Circumference mean (SD) BIS R0 mean (SD)
Baseline 3.0 (5.1) 2.6 (4.1) 3.5 (5.9)
Day 2 post surgery 14.7 (9.5)* 11.1 (5.7)* 29.9 (9.8)*
Day 8 post surgery 14.9 (8.2) 11.7 (4.1) 38.27 (7.8)
  1. *Significant difference with baseline P < 0.01.
  2. Significant difference with day 2 P < 0.01.
  3. Legends = BIS R0: Bioimpedance spectroscopy; SD: Standard Deviation.