Table 5:

The mean normalized abundance of phyla in control-period fecal samples (95% CI) compared to Post-OMM (95% CI; p-value of within-subject repeated measures ANOVA) with the percent change across sessions (p-values of Bonferroni pairwise comparison).

Phylum	Mean Normalized Abundance		% Change (P-value)	Effect Size (d)
	Pre-OMM (95% CI)	Post-OMM (95% CI; p-value)
Actinobacteria	61096 (42002, 88870)	39496 (28285, 55150; p = .040)*	2.2% (.001)	0.845
Bacteroidetes	354826 (273992, 459508)	305406 (262022, 355973; p = 1.000)	10.2% (< .001)	0.496
Euryarchaeota	40758 (18318, 90691)	15862 (7899, 31852; p = .160)	2.9% (< .001)	0.712
Fibrobacteres	71 (43, 117)	267.0 (127, 562; p = .080)	0.0% (< .001)	0.676
Firmicutes	480735 (415254, 556542)	599474 (537265, 668886; p = .080)	1.1% (< .001)	1.274
Lentisphaerae	1803 (427, 7625)	1639 (607, 4426; p = 1.000)	0.2% (.130)	0.047
Proteobacteria	26230 (20936, 32863)	31048 (14733, 65428; p = 1.000)	0.9% (.032)	0.208
Verrucomicrobia	111313 (68898, 179840)	28076 (13237, 59547; p = .024)*	8.5% (< .001)	0.675
Synergistetes	18047 (−9966, 46060)	4851 (−2780, 12481; p = .175)	1.3% (.175)	0.675
Deinococcus-Thermus	0 (0, 0)	5 (−7, 17; p = .363)	0.0% (.363)	0.577
Fusobacteria	4 (−6, 14)	7 (−11, 26; p = .720)	0.0% (.720)	0.237

Effect size Cohen’s d categories were: ≤ 0.2 = small, ≤ 0.5 = moderate, ≥ 0.8 = large for the change in abundance of phyla.

^*p ≤ .050.