Weight gain in infancy and vascular risk factors in later childhood

Area of Science:

• Pediatric Health
• Cardiovascular Health
• Metabolic Health

Background:

• Early life growth trajectories significantly influence long-term health.
• Infant weight gain patterns are critical determinants of later-life health outcomes.

Purpose of the Study:

• To investigate the association between early weight gain (0-18 months) and health indicators in later childhood.
• To determine if early weight gain predicts overweight, obesity, blood pressure, inflammation, and arterial wall thickness.

Main Methods:

• Longitudinal birth cohort study of 395 children in Sydney, Australia (1997-1999).
• Data collected antenatally and followed up to age 8 years.
• Analysis of early weight gain (adjusted for height gain) and its correlation with childhood health markers.

Main Results:

• Excess early weight gain was predicted by male gender, shorter gestation, longer birth length, and not breastfeeding to 6 months.
• Height-adjusted early weight gain was significantly associated with increased odds of childhood overweight, obesity, and central adiposity.
• Early weight gain correlated with higher systolic blood pressure, elevated C-reactive protein (systemic inflammation), and increased carotid intima-media thickness.

Conclusions:

• Early postnatal weight gain (0-18 months) is a significant predictor of adverse health outcomes in childhood.
• These outcomes include overweight, obesity, central adiposity, elevated blood pressure, inflammation, and arterial wall thickening.
• Findings underscore the critical role of early infant growth in establishing long-term cardiovascular and metabolic health.