Table 2.

Relative abundance of bacteria in fecal microbiota of children with ASD, DD/ID, and TD.

Variables	ASD	DD/ID	TD	p-value (ASD vs. DD/ID)	p-value (ASD vs. TD)	p-value (DD/ID vs. TD)
Bacteroides	0.381 ± 0.166	0.306 ± 0.173	0.311 ± 0.182	0.0090	0.0153	n.s.
Faecalibacterium	0.080 ± 0.071	0.044 ± 0.040	0.059 ± 0.052	0.0001	0.0364	n.s.
Sutterella	0.032 ± 0.029	0.022 ± 0.022	0.030 ± 0.025	0.0204	n.s.	0.0206
Prevotella	0.033 ± 0.102	0.053 ± 0.122	0.055 ± 0.139	0.0043	0.0036	n.s.
Megamonas	0.014 ± 0.042	0.025 ± 0.052	0.009 ± 0.036	0.0015	n.s.	0.0178
Coprococcus	0.006 ± 0.014	0.010 ± 0.012	0.011 ± 0.013	0.0181	0.0049	n.s.
Collinsella	0.007 ± 0.030	0.007 ± 0.010	0.007 ± 0.011	0.0080	0.0246	n.s.
Desulfovibrio	0.005 ± 0.009	0.006 ± 0.008	0.007 ± 0.007	0.0069	0.0046	n.s.

Data show only the significantly (P < 0.05) different abundances at genus level. P-values were obtained from the Mann–Whitney U-test. ASD, autism spectrum disorder; DD/ID, developmental delay or intellectual disability; TD, typically developing; n.s., non-significant.