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Abstract
Introduction. Maternal obesity has long-term consequences for the offspring's later health, including an increased risk of type 2 diabetes and cardiovascular disease. The underlying mechanisms explaining these associations are, however, not fully understood.
Methods. A total of 2003 individuals from the Helsinki Birth Cohort Study born 1934–44, underwent measurements of body size, body composition, and clinical characteristics at a mean age of 62 years. Data on maternal anthropometry were available from hospital records.
Results. Maternal BMI was positively associated with BMI in the offspring. Higher maternal BMI was associated with less favorable body composition in the offspring. There was a significant interaction between birth weight and maternal BMI on offspring body fat percentage (P for interaction 0.003). In mothers with low BMI, a higher offspring birth weight was associated with lower fat percentage, while among those with maternal BMI in the highest fourth, higher offspring birth weight predicted higher body fat percentage.
Discussion. Our findings suggest that a disadvantageous body composition is programmed in early life. This may in part underlie the association between maternal obesity and later cardio-metabolic health of the offspring. These findings support the importance of prevention of overweight in women of child-bearing age.
Funding: HBCS has been supported by grants from Finska Läkaresällskapet, the Finnish Special Governmental Subsidy for Health Sciences, Academy of Finland, Samfundet Folkhälsan, Liv och Hälsa, the Signe and Ane Gyllenberg Foundation, and EU FP7 (DORIAN) project number 278603.
Declaration of interest: The authors report no conflicts of interest.