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. 2008 May 20;5(2):280–286. doi: 10.1111/j.1742-481X.2008.00485.x

Table 2.

Median percentage reduction in wound size (volume, area and depth)*

Combined data (95% CI) P value Progressed until NPWT no longer required Including NPWT discontinued prematurely
% reduction in volume 88·0 (59·8–94·1) (n = 17) <0·001 92·2 (n = 11) 63·7 (n = 6)
% reduction in area 68·0 (55·6–78·6) (n = 26) <0·001 81·7 (n = 17) 44·1 (n = 9)
% reduction in depth 57·4 (38·1–72·7) (n = 17) <0·005 71·8 (n = 10) 46·7 (n = 7)

95% CI, 95% confidence interval; NPWT, negative pressure wound therapy.

*

Wound size was measured at the onset of NPWT and immediately following discontinuation of the therapy. Median percentage reduction in wound size from initial measurements and 95% CI were calculated. Statistical significance of the reduction in size was calculated compared with the baseline measurement. A subanalysis was carried out to assess the percentage reduction in wound size according to whether therapy was discontinued because the wound had progressed to a stage where NPWT was no longer required or was discontinued for non wound‐related factors.