Childhood consequences of maternal obesity and excessive weight gain during pregnancy

Area of Science:

• Public Health
• Pediatrics
• Reproductive Health

Background:

• Obesity prevalence in pregnant women is increasing globally, reaching 30% in Western countries.
• Excessive gestational weight gain affects up to 40% of pregnant women.
• Maternal obesity and weight gain during pregnancy are associated with adverse child health outcomes.

Purpose of the Study:

• To investigate the long-term impact of maternal obesity and excessive gestational weight gain on offspring health.
• To explore the causality and underlying mechanisms of these associations.
• To assess the potential for disease prevention in future generations through interventions targeting maternal weight.

Main Methods:

• Review of observational studies and meta-analyses.
• Discussion of study designs to explore causality: parent-offspring, sibling comparison, Mendelian randomization, and randomized trials.
• Emphasis on identifying confounding factors like sociodemographic and lifestyle influences.

Main Results:

• Observational data suggest a link between maternal adiposity during pregnancy and programming of common health problems in offspring.
• The causal nature of these associations requires further investigation.
• Potential for preventive strategies targeting maternal weight during pregnancy.

Conclusions:

• Maternal obesity and excessive gestational weight gain may have lasting effects on child health.
• Causality needs to be established using robust study designs.
• Interventions aimed at maternal weight management during pregnancy could offer a pathway for preventing common diseases in offspring.