ko pathway ratio_in_study ratio_in_pop p_value ko00740 Riboflavin metabolism 1/14 8/7206 0.0154447772987 ko00100 Steroid biosynthesis 1/14 21/7206 0.0400709034293 ko04966 Collecting duct acid secretion 1/14 26/7206 0.0493892407379