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Phthalates, insulin resistance, and race gaps
In NHANES 2001–2008, several urinary phthalates tracked higher glucose and HOMA-IR, with stronger signals in Mexican-Americans than whites.
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What survey and years?
NHANES 2001–2008.
Source: Gender and racial/ethnic differences in the associations of urinary phthalate metabolites with markers of diabetes risk: National Health and Nutrition Examination Survey 2001-2008 · DOI · quote verified
How many people remained in the analysis?
3,083 nondiabetic participants.
Source: Gender and racial/ethnic differences in the associations of urinary phthalate metabolites with markers of diabetes risk: National Health and Nutrition Examination Survey 2001-2008 · DOI · quote verified
What ages were included?
Men and women aged 12 to under 80 without diagnosed diabetes.
Source: Gender and racial/ethnic differences in the associations of urinary phthalate metabolites with markers of diabetes risk: National Health and Nutrition Examination Survey 2001-2008 · DOI · quote verified
How many phthalate metabolites?
8 urinary phthalate metabolites.
Source: Gender and racial/ethnic differences in the associations of urinary phthalate metabolites with markers of diabetes risk: National Health and Nutrition Examination Survey 2001-2008 · DOI · quote verified
Who had higher creatinine-adjusted phthalates?
Women, for all six selected metabolites.
Source: Gender and racial/ethnic differences in the associations of urinary phthalate metabolites with markers of diabetes risk: National Health and Nutrition Examination Survey 2001-2008 · DOI · quote verified
Which metabolites associated most with diabetes markers?
MnBP, MiBP, MCPP, and ΣDEHP with FBG, insulin, and HOMA-IR.
Source: Gender and racial/ethnic differences in the associations of urinary phthalate metabolites with markers of diabetes risk: National Health and Nutrition Examination Survey 2001-2008 · DOI · quote verified
How did MiBP–glucose associations differ by ethnicity?
Largest FBG rise in Mexican-Americans, smaller in Black participants, nonsignificant in whites.
Source: Gender and racial/ethnic differences in the associations of urinary phthalate metabolites with markers of diabetes risk: National Health and Nutrition Examination Survey 2001-2008 · DOI · quote verified
ΣDEHP and HOMA-IR in men vs women?
Fourth quartile: +0.67 in men and +0.68 in women.
Source: Gender and racial/ethnic differences in the associations of urinary phthalate metabolites with markers of diabetes risk: National Health and Nutrition Examination Survey 2001-2008 · DOI · quote verified
Which group had the highest levels of most phthalates?
Black participants had the highest MEP, MnBP, MiBP, MBzP, and ΣDEHP.
Source: Gender and racial/ethnic differences in the associations of urinary phthalate metabolites with markers of diabetes risk: National Health and Nutrition Examination Survey 2001-2008 · DOI · quote verified
Proposed biological link?
Phthalates can interact with PPAR-gamma and disrupt glucose metabolism.
Source: Gender and racial/ethnic differences in the associations of urinary phthalate metabolites with markers of diabetes risk: National Health and Nutrition Examination Survey 2001-2008 · DOI · quote verified
Key design limit?
Cross-sectional design plus one-time urine cannot support causal claims.
Source: Gender and racial/ethnic differences in the associations of urinary phthalate metabolites with markers of diabetes risk: National Health and Nutrition Examination Survey 2001-2008 · DOI · quote verified