Newborn adiposity by body mass index predicts childhood overweight

Area of Science:

• Pediatric endocrinology
• Childhood obesity research
• Nutritional science

Background:

• Childhood overweight is a growing public health concern.
• Early life adiposity is increasingly recognized as a critical factor in long-term health outcomes.
• Understanding predictors of childhood overweight is essential for timely intervention.

Purpose of the Study:

• To investigate the association between adiposity at birth and in infancy with overweight status at age 5 years.
• To determine if body mass index (BMI) at birth can predict childhood fatness.
• To evaluate the predictive value of early infant BMI on later overweight status.

Main Methods:

• Utilized anthropometric data collected from birth to 5 years of age.
• Calculated body mass index (BMI) percentiles for infants and children.
• Employed multiple logistic regression to assess the association between elevated BMI percentile (>=85th) at 2 weeks and overweight status at 6, 12, 36, and 60 months.

Main Results:

• An elevated BMI percentile (>=85th) at 2 weeks of age was significantly associated with increased risk of overweight at all measured time points up to 5 years.
• Infants with a BMI percentile >=85th at 2 weeks had an adjusted odds ratio of 3.42 (95% CI = 1.79, 6.50) for being overweight at 60 months.
• These infants also had an adjusted risk ratio of 2.12 (95% CI = 1.71, 2.61) for overweight at age 5.

Conclusions:

• Adiposity at birth, as indicated by BMI, is a significant predictor of being overweight at 5 years of age.
• Early infant adiposity is a crucial factor that can forecast later childhood overweight.
• These findings highlight the importance of monitoring infant growth and adiposity for early identification of overweight risk.