Skip to main content

Table 2 The median percentage change from preoperative limb circumference in control and NPWT groups and the difference in medians measured 24 and 72 h postoperatively

From: A preliminary study of the effect of closed incision management with negative pressure wound therapy over high-risk incisions

   Median (25th to 75th Quartile) Difference in medians (95 % CI)  
Measurement Time Control (n = 10) NPWT (n = 10) p-valuea
Proximal interphalangeal joint 24 h 19.1 (10.2 to 24.6) −8.0 (−14.1 to −0.6) −27.1 (−38.7 to −11.3) 0.002
72 h 14.6 (4.7 to 23.2) −10.2 (−16.7 to 0.8) −24.8 (−44.7 to −7.7) 0.002
Distal interphalangeal joint 24 h 20.3 (14.0 to 27.0) −8.2 (−11. to −1.4) −28.7 (−37.2 to −15.8) 0.0008
72 h 16.7 (8.6 to 35.0) −9.8 (−12.0 to 2.7) −26.5 (−50.0 to −7.0) 0.009
Surgical site 24 h 11.0 (7.2 to 19.0) 3.1 (1.5 to 6.3) −7.9 (−19.3 to −1.7) 0.02
72 h 11.6 (6.2 to 18.6) 1.5 (−1.6 to 4.6) −10.1 (−22.7 to −1.4) 0.04
Joint proximal to surgical site 24 h 8.2 (2.4 to 13.3) 0.0 (−0.6 to 1.0) −8.2 (−15.2 to −1.1) 0.02
72 h 5.6 (1.5 to 8.9) 0.0 (−2.0 to 0.9) −5.6 (−11.4 to −3.6) 0.16
Joint distal to surgical site 24 h 17.7 (10.5 to 30.9) 2.1 (−1.5 to 4.5) −15.6 (−33.1 to −3.8) 0.007
72 h 13.4 (8.8 to 24.4) 1.8 (−2.6 to 4.4) −11.6 (−25.4 to −4.3) 0.009
Mid-bone of affected bone* 24 h 10.4 (4.7 to 12.7) 1.9 (1.3 to 4.7) −8.5 (−12.7 to −0.6) 0.05
72 h 5.0 (−0.3 to 18.8) 0.6 (−4.1 to 2.4) −4.4 (−20.9 to −1.8) 0.11
Average measurement 24 h 15.0 (11.7 to 21.6) −2.0 (−3.5 to 1.4) −17 (−24.7 to −9.9) 0.008
72 h 14.0 (7.2 to 19.4) −2.5 (−3.6 to 2.5) −16.4 (−24.5 to −6.8) 0.0003
  1. aMann–Whitney U test