Objective To examine birth weight and risk of low birth weight (≤2 499g, LBW) in relation to milk intake.
Design Questionnaire-based study.
Setting Southeast Sweden
Population Single birth infants within the ABIS project included during a two-year period (ABIS = All Babies In Southeast Sweden).
Main outcome measures Birth weight and LBW.
Results Low milk intake during pregnancy was associated with a decrease in infant birth weight (P<0,01l, Kruskal-Wallis) but did not correlate with LBW (P=0.434, Chi-2) (10 489 infants with complete data)
When adjusting for confounders (regression analyses) low milk intake during pregnancy was associated with a decrease in infant birth weight (adjusted P for trend<0,001) and with an increased risk of LBW (adjusted P for trend= 0.028) (9 097 infants with complete data).
Conclusion This study suggests that low milk intake in the pregnant mother is associated with lower birth weight of the newborn. Further research is needed to evaluate the relationship between low milk intake and the risk of LBW.