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Epidemiology. 2017 Oct;28 Suppl 1:S82-S88. doi: 10.1097/EDE.0000000000000697.

Association Between Dioxin and Metabolic Syndrome by Age and Sex in an Endemic Area of Exposure in Taiwan.

Author information

1
From the aDepartment of Environmental and Occupational Health, College of Medicine, National Cheng Kung University, Tainan 704, Taiwan; bTainan Science Park Clinic, Chi-Mei Medical Center, Tainan 744, Taiwan; cResearch Center for Environmental Trace Toxic Substances, National Cheng Kung University, Tainan 704, Taiwan; dDepartment of Occupational and Environmental Medicine, College of Medicine, National Cheng Kung University, Tainan 704, Taiwan; eDepartment of Occupational and Environmental Medicine, National Cheng Kung University Hospital, Tainan 704, Taiwan; and fOccupational Safety, Health, and Medicine Research Center, National Cheng Kung University, Tainan 704, Taiwan.

Abstract

BACKGROUND:

Some of the effects of dioxins seem to be different between men and women, and exposures starting at an early age seem to have more prominent effects. Therefore, we conducted a study in Taiwan to evaluate the associations between exposure to polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) and metabolic syndrome (MetS) starting at different ages in both sexes.

METHODS:

We recruited participants from an area where residents were exposed to PCDD/Fs released from a factory and defined serum PCDD/Fs levels ≥20 pg WHO98-TEQDF/g lipid as high dioxin levels. MetS was defined as meeting three of the following criteria: fasting glucose ≥100 mg/dl or under treatment for diabetes, waist circumference ≥90 cm in men or ≥80 cm in women, triglycerides ≥150 mg/dl or under treatment for elevated triglycerides, high-density lipoprotein <40 mg/dl in men or <50 mg/dl in women, and blood pressures ≥130/85 mmHg or under treatment for hypertension.

RESULTS:

Of the 2758 participants, 785 patients with MetS were identified, and we observed positive associations between a high dioxin level and MetS. After adjusting for sex, age, and age at starting exposure, we found that a high dioxin level was an independent predictor for MetS (adjusted odds ratio =1.38; 95% confidence interval = 1.11, 1.72). When we stratified the participants by gender, we found that a high dioxin level remained an independent predictor of MetS in men, but not in women, regardless of the age at starting exposure.

CONCLUSIONS:

Exposure to PCDD/Fs was associated with MetS in men, independent of age and age at starting exposure.

PMID:
29028680
DOI:
10.1097/EDE.0000000000000697
[Indexed for MEDLINE]

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