. 2016 Apr 11;60(2):2609. doi: 10.4081/ejh.2016.2609

Table 3.

Fractal dimension of normal circumanal glands and circumanal gland tumors.

		Normal circumanal glands	Circumanal gland adenomas	Circumanal gland epitheliomas	Well differentiated circumanal gland carcinomas	Poorly differentiated circumanal gland carcinomas
Mean value of FD	FD100X	1.318	1.384	1.547	1.569	1.679
Mean value of FD	FD400X	1.372	1.408	1.597	1.607	1.723
Lowest recorded value of FD	FD100X	1.138	1.208	1.216	1.281	1.600
Lowest recorded value of FD	FD400X	1.188	1.199	1.311	1.338	1.675
Highest recorded value of FD	FD100X	1.435	1.649	1.719	1.710	1.779
Highest recorded value of FD	FD400X	1.531	1.701	1.733	1.746	1.785
Standard error of Mean FD	FD100X	0.029	0.032	0.050	0.026	0.028
Standard error of Mean FD	FD400X	0.030	0.037	0.046	0.026	0.019
Std. deviation of FD	FD100X	0.092	0.125	0.167	0.120	0.069
Std. deviation of FD	FD400X	0.096	0.142	0.153	0.117	0.047
Mean measurement std. deviation	FD100X	0.049	0.062	0.058	0.071	0.046
Mean measurement std. deviation	FD400X	0.077	0.059	0.048	0.055	0.033
Lilliefors’ statistic	FD100X	0.178 (P>0.20)	0.207 (P<0.10)	0.245 (P<0.10)	0.183^* (P<0.05)	0.159 (P>0.20)
(P-value)	FD400X	0.132 (P>0.20)	0.146 (P>0.20)	0.301^** (P<0.01)	0.173 (P<0.10)	0.230 (P>0.20)
Shapiro-Wilk’s statistic	FD100X	0.948 (P=0.64)	0.920 (P=0.19)	0.884 (P=0.12)	0.898^* (P=0.03)	0.955 (P=0.78)
(P-value)	FD400X	0.979 (P=0.96)	0.930 (P=0.27)	0.820^* (P=0.02)	0.894^* (P=0.03)	0.876 (P=0.25)

FD, fractal dimension; FD100X, fractal dimension estimated from vimentin IHC micrographs taken at magnification 100X; FD400X, fractal dimension estimated from vimentin IHC micrographs taken at magnification 400X;

*significant at 5%;

**significant at 1%.