Fig. 5

Adjusted associations between infant fucosyltransferase-2 (FUT2) heterozygosity and change in infant body mass index (BMI) in the first year of life stratified by secretor and non-secretor milk in the Ulm Birth Cohorts. Results (β, 95% CI) from general linear models adjusted for sex, age, maternal milk and/or ABO blood group, birthweight, and gestational age. Change in BMI defined as difference between BMI at 4–5 weeks and subsequent time points. Bonferroni-adjusted significance threshold: α = 0.0035. Abbreviations: BMI, body mass index; CI, confidence interval; FUT2, fucosyltransferase-2; SNP, single nucleotide polymorphism; HMO, human milk oligosaccharide; SPATZ, Ulm SPATZ Health Study; UBCS, Ulm Birth Cohort Study.