Table 1.

Measures of relative abundance of bacterial genera in feces that differed between time points in children with ASD and CONT.

Bacterial taxa (% of sequences)	Baseline (n = 26)	6-weeks p.-b. (n = 25)	6 months p.-b. (n = 22)
ASD
Bacterial order
Streptophyta	0 (0–0.001)	0 (0–0.005)	0.002 (0–0.02)†
Bacterial family
Clostridiaceae	0.28 (0.14–1.5)	0.53 (0.16–1.47)	0.25 (0.08–0.49)†
Bacterial genus
Clostridaceae_Clostridium	0.33 (0.05–0.66)	0.19 (0.07–0.42)	0.06 (0.03–0.14)*
CONT
Bacterial taxa (% of sequences)	Baseline (n= 32)	6-weeks p.-b. (n= 32)	6 months p.-b. (n= 29)
Bacterial family
Enterobacteriaceae	0.02 (0.007–0.12)	0.02 (0.01–0.39)	0.03 (0.005–0.11)†
Bacterial genus
Enterococcus	0 (0–0.001)	0 (0–0.002)	0.001 (0–0.002)†

Data expressed as median (IQR); within same group and row, significant at FDR-corrected

^*p ≤ 0.05;

^†p ≤ 0.1; p.-b., post-baseline.