TABLE 3.

Results of PERMANOVA on unweighted and weighted UniFrac distances (all samples combined)

Parameter	df	pseudo-F	R2	P valuea
Unweighted UniFrac distance
Body site	2	3.703	0.052	<0.001
C-section	1	1.987	0.014	<0.01
Infant age	1	4.034	0.028	<0.001
Siblings	1	1.239	0.009	0.185
Household size	6	1.534	0.064	<0.001
Alloparents	6	1.598	0.066	<0.001
Population	3	1.888	0.039	<0.001
Weighted UniFrac distance
Body site	2	20.337	0.219	<0.001
C-section	1	2.334	0.013	<0.05
Infant age	1	3.105	0.017	<0.05
Siblings	1	1.670	0.009	0.113
Household size	6	1.972	0.064	<0.01
Alloparents	6	2.003	0.065	<0.01
Population	3	3.103	0.050	<0.001

^aP values in boldface indicate significance.