Table 2. Effect of secretor status on children’s unweighted and weighted UniFrac distances.

		Unweighted UniFrac		Weighted UniFrac
	Sample size (secretor)	R2	p	R2	p
Child Secretor Status	28 (20 S)	0.069	0.030	0.023	0.699
Mother’s Secretor Status	17 (11 S)	0.071	0.256	0.104	0.111
Mother’s Secretor Status—ABF	14(10 S)	0.111	0.102	0.116	0.138
Mother’s Secretor Status–EBF	11 (8 S)	0.167	0.028	0.159	0.081

Results of Adonis analysis (total sample size (number of secretors), R² and p value) of association of unweighted and weighted UniFrac distances with child secretor status, mother secretor status, mother secretor status—ABF (Any Breast-Feeding) subgroup, with the 2 formula-fed children excluded, and mother secretor status—EBF (Exclusively Breast-Fed) sub-group, containing only children who had been exclusively breast-fed for at least 4 months.