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. 2015 Jan 25;13(5):833–842. doi: 10.1111/iwj.12389

Table 3.

Primary outcome results from 36 patients randomised to receive either NLFU + SOC or SOC alone. Results are shown for percentage and actual area reduction following 8 weeks of treatment. Values which have been adjusted for the influence of the covariate (wound area at the beginning of treatment) are shown alongside non‐adjusted values

NLFU + SOC (n = 17) SOC (n = 19) Difference (95% CIs) P‐value
Adjusted (planned)
Mean percentage change in wound area (%) −46·6 (SD, 38·1) −39·2 (SD, 38·0) −7·4 (−33·4 to 18·6) 0·565
Actual change in wound area (cm2) −6·2 (SD, 5·5) −5·3 (SD, 5·5) −0·9 (−4·7 to 2·9) 0·618
Non‐adjusted
Percentage change in wound area (%) −47·8 (SD, 40·3) −38·2 (SD, 35·6) −9·6 (−35·3 to 16·1) 0·453
Actual change in wound area (cm2) −5·6 (SD, 6·6) −5·8 (SD, 6·2) 0·1 (−4·2 to 4·5) 0·954

CI, confidence interval; NLFU, non‐contact low frequency ultrasound; SD, standard deviation; SOC: standard of care.