Table 3.

Antibody Intensity Scoring.

Sex	% BMI-for-age	Uroguanylin staining		Guanylin staining		GUCY2C staining (intestine)		GUCY2C staining (colon)
F	25–75	1.92, 0.58	P <.03	2.35, 0.71	P <.01	2.21, 0.59	P =.06	2.22, 0.71	P =.24
F	>95	1.50, 0.59		1.86, 0.48		1.96, 0.46		2.10, 0.48
M	25–75	1.63, 0.50	P = 1.0	2.13, 0.52	P =.19	2.25, 0.58	P = 1.0	2.33, 0.62	P =.46
M	>95	1.63, 0.50		1.94, 0.68		2.25, 0.58		2.31, 0.48

BMI: Body mass index; F: Female; GUCY2C: Guanylyl cyclase C; M: Male.

Average intensity staining scores of specimens from patients by sex and BMI-for-age percentile (BMIFA) for each antibody tested. Values are expressed as mean intensity and standard deviation with P values representing Student’s t test.