Phthalates and Obesity: A Study of NHANES Data
Author Information
Author(s): Elizabeth E Hatch, Jessica W Nelson, M Mustafa Qureshi, Janice Weinberg, Lynn L Moore, Martha Singer, Thomas F Webster
Primary Institution: Boston University School of Public Health
Hypothesis
Do urinary phthalate metabolite concentrations correlate with body mass index and waist circumference?
Conclusion
The study found associations between phthalate metabolites and obesity outcomes, with variations by gender and age.
Supporting Evidence
- Phthalate metabolites were detected in most participants, with MEP and MBP detected in over 99%.
- The strongest associations were found in males aged 20-59 for MBzP and in adolescent girls for MEP.
- Inverse relationships were observed for MEHP in adolescent girls and females aged 20-59.
Takeaway
This study looked at how certain chemicals in our bodies, called phthalates, might be linked to being overweight, especially in adults.
Methodology
The study analyzed associations between six phthalate metabolites and BMI and waist circumference using NHANES data from 1999-2002.
Potential Biases
Potential biases due to self-reported data and the cross-sectional nature of the study.
Limitations
The cross-sectional design limits causal inferences, and there may be unmeasured confounders.
Participant Demographics
Participants were aged 6-80, with a diverse representation of gender and ethnicity.
Statistical Information
P-Value
p-trend = 0.0002 for MBzP in males aged 20-59
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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