Intestinal microflora and body mass index during the first three years of life: an observational study

Table 3 Correlation between BMI SDS and the intestinal microflora: regression coefficient ± standard error

Bacteria	at age 3 weeks	at age 26 weeks	at age 52 weeks
Bacteroides fraglis	0.05 ± 0.02*	0.05 ± 0.02*	- 0.01 ± 0.02
Staphylococcus	- 0.04 ± 0.02*	0.04 ± 0.02	- 0.05 ± 0.02*
Ratio Staph./B. frag.	- 0.05 ± 0.01**	0.00 ± 0.02	0.01 ± 0.03
Enterobacteriaceae	- 0.02 ± 0.02	0.03 ± 0.02	0.02 ± 0.02
Bifidobacterium	- 0.02 ± 0.02	- 0.02 ± 0.02	0.00 ± 0.01
Clostridium	- 0.02 ± 0.02	- 0.02 ± 0.03	- 0.01 ± 0.02
Lactobacillus	0.01 ± 0.01	- 0.01 ± 0.02	- 0.01 ± 0.02
Enterococcus	0.01 ± 0.02	0.03 ± 0.02	- 0.02 ± 0.02
Total Anaerobes	- 0.03 ± 0.03	0.02 ± 0.04	0.03 ± 0.04

* p < 0.05; ** p < 0.01. P-values were adjusted for confounders (formula and/or breastfeeding, use of antibiotics by the child and socio-economic status) and for known risk factors of childhood obesity (BMI mother, smoking status of the mother and birth weight SDS).

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