Table 3.

Correlation between IgA flow rate of saliva per weight of submandibular gland tissue and concentration of short-chain fatty acids (SCFA) in cecal digesta, weight of cecal tissue, weight of cecal digesta, pH in cecal digesta, or concentration of IgA in cecal digesta.

Variable	IgA Flow Rate of Saliva per Weight of Submandibular Gland Tissue
	rs $	p	n
SCFA concentration in cecal digesta	0.86	0.0006	12
Weight of cecal tissue	0.52	0.0001	48
Weight of cecal digesta	0.34	0.02	48
pH in cecal digesta	0.39	0.006	48
Concentration of IgA in cecal digesta	0.15	0.3	48

SCFA: short-chain fatty acids, which was the sum of concentration of acetate, propionate, and n-butyrate. ^$ Spearman’s rank correlation coefficient. The concentration of SCFA was measured only at eight weeks, so only 12 samples were included. For all other parameters, 48 individuals were included.