Table 2—

Adjusted odds ratio (OR) and 95% CI of prevalent diabetes by category of six BFRs (n = 1,367)*

AnalyteNot detectableDetectable
P trendP quadratic
<25th25th to <50th50th to <75th≥75th
PBB-153
    Median serum concentration (ng/g of lipid)1.22.33.813.1
    Cases/n11/16616/30639/30341/29249/300
    Adjusted OR (95% CI)Referent0.7 (0.3–1.6)1.4 (0.7–3.0)1.6 (0.8–3.5)1.9 (0.9–4.0)<0.010.88
PBDE-28
    Median serum concentration (ng/g of lipid)0.71.22.05.4
    Cases/n37/27919/29632/26231/25937/271
    Adjusted OR (95% CI)Referent0.5 (0.3–1.0)1.2 (0.7–2.0)0.9 (0.5–1.6)0.8 (0.5–1.4)0.930.97
PBDE-47
    Median serum concentration (ng/g of lipid)6.513.728.273.3
    Cases/n2/3643/33334/33340/33237/333
    Adjusted OR (95% CI)Referent3.4 (0.8–15.7)2.9 (0.6–13.5)3.8 (0.8–17.4)2.7 (0.6–12.5)1.000.16
PBDE-99
    Median serum concentration (ng/g of lipid)3.15.39.226.9
    Cases/n45/45637/23125/22222/23027/228
    Adjusted OR (95% CI)Referent2.0 (1.2–3.2)1.5 (0.9–2.6)1.2 (0.7–2.2)1.3 (0.7–2.2)0.570.06
PBDE-100
    Median serum concentration (ng/g of lipid)1.42.85.616.8
    Cases/n10/9437/33037/30535/32237/316
    Adjusted OR (95% CI)Referent1.3 (0.6–2.8)1.6 (0.7–3.5)1.6 (0.7–3.5)1.4 (0.6–3.0)0.500.20
PBDE-153
    Median serum concentration (ng/g of lipid)1.93.66.624.6
    Cases/n9/10134/31740/31442/31631/319
    Adjusted OR (95% CI)Referent1.6 (0.7–3.6)2.6 (1.2–5.8)2.7 (1.2–6.0)1.8 (0.8–4.0)0.15<0.01
  • * Adjusted for age, sex, race, poverty income ratio, and BMI.

  • Displayed is the median serum concentration in each category.

  • P trend was calculated without a quadratic term in the model, while P quadratic was calculated including the linear term.