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. 2022 Apr 1;12(2):e2022072. doi: 10.5826/dpc.1202a72

Table 2.

Keloid Thickness by CDU Before and After Treatment For Each Group of the Studied Cases

Group I
No. = 15
Group II
No. = 15
Group III
No. = 15
Test value P-value
Thickness before (cm 2 ) Median (IQR) 0.81 (0.27 – 1.35) 1.82 (0.8 – 6.32) 0.36 (0.23 – 0.73) 11.131 0.004 (HS)
Range 0.07 – 24.5 0.36 – 23.85 0.09 – 1.4
Thickness after (cm 2 ) Median (IQR) 0.48 (0.14 – 2.07) 1.12 (0.36 – 5.11) 0.32 (0.17 – 0.59) 6.162 0.046 (S)
Range 0.06 – 8 0.12 – 15.6 0.01 – 1.04
Difference Mean ± SD −1.55 ± 5.22 −1.24 ± 2.13 −0.12 ± 0.15 11.599 0.003 (HS)
Range −19.6 – 1.41 −8.25 – 0 −0.41 – 0.06
Willcoxon Rank test −2.480 −3.296 −2.513
P 0.013 (S) 0.001 (HS) 0.012 (S)

CDU= Color Doppler Ultrasound; No = number; IQR= interquartile range; S= Significant; HS= highly significant; SD= standard deviation.