marginal significancep = 0.049
Comparison of the PA Intensities of the Cholesterol Polyps, Adenomas, and Adenocarcinomas The comparison of the normalized PA intensities among the cholesterol polyps, adenomas, and adenocarcinomas using the Kruskal-Wallis test demonstrated that there was marginal significance in their differences at 765 nm (median, 0.67 vs. 0.66 vs. 0.78; p = 0.049).