Serial cross-sectional study for the association between urinary bisphenol A and paediatric obesity: Recent updates...

Area of Science:

• Environmental Health
• Pediatric Endocrinology
• Epidemiology

Background:

• Bisphenol A (BPA) is a potential risk factor for pediatric obesity.
• Previous research on BPA and childhood obesity has yielded inconsistent findings.
• Understanding these associations is crucial for public health initiatives.

Purpose of the Study:

• To examine the association between urinary BPA levels and pediatric obesity.
• To investigate how these associations vary across different survey years (2003-2014).
• To assess the impact of urinary creatinine adjustments on the observed associations.

Main Methods:

• Serial cross-sectional study using National Health and Nutrition Examination Survey data (2003-2014).
• Inclusion of children aged 6-19 years.
• Multivariable regression and cubic spline models used for analysis, with and without urinary creatinine adjustments.

Main Results:

• Urinary BPA concentrations showed decreasing trends from 2003 to 2014.
• Associations between urinary BPA and obesity were inconsistent across survey years and adjustment methods.
• Positive association between obesity and urinary creatinine concentrations was observed, but not in adjusted models.
• Higher urinary BPA was linked to elevated obesity odds from 2003-2008, but this association became inconsistent from 2009-2014.

Conclusions:

• The relationship between pediatric obesity and urinary BPA concentrations is complex and varies significantly by survey year and adjustment methods.
• Observed discrepancies highlight the need for further investigation into the environmental and biological factors influencing BPA-obesity links.
• Continued research is essential to clarify these inconsistent findings and inform effective prevention strategies.