Table 4. Differences at end of treatment in alpha diversity and median relative abundance of taxa between subjects who had or did not have a confirmed recurrence of C. difficile during the study.

Alpha diversity		Recurrence	No recurrence	P-value
	n	11	69
Chao	Mean	280	365	<0.05
	Stdev*	81.6	133
Shannon	Mean	2.89	3.67	<0.05
	Stdev	0.89	1.11
PD	Mean	7.33	10.56	<0.01
	Stdev	1.04	3.94
Median Relative Abundance		Recurrence	No recurrence	P-value
Taxa higher in subjects without recurrence
Firmicutes		3.18E-02	1.11E-01	<0.05
o_Clostridiales		1.57E-02	8.85E-02	<0.05
f_Lachnospiraceae		<LLD	2.68E-03	<0.05
g_Blautia		<LLD	1.91E-04	<0.05
f_Ruminococcaceae		<LLD	6.70E-04	<0.05
Taxa higher in subjects with recurrence
Proteobacteria
c_Gammaproteobacteria		5.70E-01	1.60E-01	<0.05
f_Enterobacteriaceae		5.70E-01	1.05E-01	<0.05
g_Erwinia		5.74E-04	9.57E-05	<0.05
g_Klebsiella		7.57E-02	5.74E-03	<0.05
Klebsiella oxytoca		3.11E-03	9.57E-05	<0.05
g_Salmonella		5.26E-04	<LLD	<0.01
Salmonella enterica		5.26E-04	<LLD	<0.01

*Stdev = standard deviation.

PD = phylogenetic diversity.

c = class, o = order, f = family, g = genus, s = species.