. 2021 Aug 11;16(8):e0255835. doi: 10.1371/journal.pone.0255835

Table 3. Comparisons of texture analysis-derived parameters among normal tonsil, early tonsil cancer, and advanced tonsil cancer.

	SSF	Mean	SD	Entropy	MPP	Skewness	Kurtosis
p value	0	0.635	<0.001^*	<0.001^*	0.444	<0.001^*	0.005^*
	2	<0.001^*	<0.001^*	<0.001^*	0.569	<0.001^*	<0.001^*
	3	<0.001^*	<0.001^*	<0.001^*	0.763	<0.001^*	<0.001^*
	4	<0.001^*	<0.001^*	<0.001^*	0.771	0.012^*	<0.001^*
	5	<0.001^*	<0.001^*	<0.001^*	0.809	0.861	0.001^*
	6	<0.001^*	<0.001^*	<0.001^*	0.833	0.044^*	0.043^*
Early vs normal	0	0.997	<0.001^*	<0.001^*	0.786	<0.001^*	0.002^*
	2	<0.001^*	<0.001^*	<0.001^*	0.312	<0.001^*	<0.001^*
	3	<0.001^*	<0.001^*	<0.001^*	0.930	<0.001^*	<0.001^*
	4	<0.001^*	<0.001^*	<0.001^*	0.953	0.021^*	<0.001^*
	5	<0.001^*	<0.001^*	<0.001^*	0.899	0.909	<0.001^*
	6	0.001^*	<0.001^*	<0.001^*	0.661	0.749	0.021^*
Early vs advanced	0	0.669	0.556	0.927	0.727	0.871	0.745
	2	0.072	0.988	1.000	0.515	0.420	0.471
	3	0.032^*	0.871	0.935	0.438	0.281	0.871
	4	0.022^*	0.614	0.442	0.369	0.973	0.858
	5	0.014^*	0.525	0.372	0.321	0.974	0.914
	6	0.20	0.520	0.567	0.485	0.214	0.975
Advanced vs normal	0	0.622	<0.001^*	<0.001^*	0.432	0.006^*	0.43
	2	<0.001^*	0.002^*	<0.001^*	0.829	0.002^*	<0.001^*
	3	<0.001^*	<0.001^*	<0.001^*	0.532	<0.001^*	<0.001^*
	4	<0.001^*	<0.001^*	<0.001^*	0.613	0.099	<0.001^*
	5	<0.001^*	<0.001^*	<0.001^*	0.819	0.878	0.010^*
	6	<0.001^*	<0.001^*	<0.001^*	0.971	0.043^*	0.111

* Statistically significant.

SD standard deviation, MPP mean positive pixel, SSF spatial scaling factor.