Table 3.

Maternal consumption of ASB during pregnancy and urine succinate are associated with higher infant BMI at one-year-old. Linear models showing the explanatory power of maternal ASB consumption and urine succinate at 3 M old on infant BMI z-score at one year old, as well as the two main axes of ordination of bacterial community structure (beta-diversity) on samples acquired at 3 M and 12 M old. The full models are: [1]BMI at 1y ~ Succinate; [2]BMI at 1y ~ ASB + PCoA1 + PCoA2. Microbial variables were transformed (squared root and order quantile normalized respectively) to achieve normality. Here we present only the best model for 12 months fitted by stepwise selection by Akaike information criterion because we detected no association between BMI at one year old and microbiota composition at 3 M old

Variables	Infant BMI z-score at 1 year				Total adj. R2
	ß-est.	95% CI	P-value	R2
Model 1 Urine succinate (3 months)	0.45	[0.15,0.76]	0.004	7.4%	7.4%
Model 2 Maternal ASB (daily vs. no consumption)	0.42	[0.03,0.81]	0.037	4.1%	8.1%
PCoA axis 1	−0.71	[−1.40, −0.01]	0.048	3.9%
PCoA axis 2	NS	NS	NS	NS