title: Contribution of sociodemographic characteristics, occupation, diet and lifestyle to DDT and DDE concentrations in serum and adipose tissue from a Bolivian cohort.
abstract: The organochlorine pesticide p,p'-Dichlorodiphenyltrichloroethane (DDT) was widely used in the early 1960s-70s for vector control in tropical and subtropical areas of South America. Due to its persistence, DDT has a high potential to bioaccumulate in the food chain and living organisms and is a major public health concern, especially in South America. The main purpose of the present study was to investigate predictors of serum and adipose tissue concentrations of p,p'-DDT and its main metabolite, p,p'-dichlorodiphenyldichloroethylene (p,p'-DDE), in an adult cohort (n=112) from Santa Cruz de la Sierra, Bolivia, using multiple linear regression models. These models explained 29.3-47.8% of the variability in adipose tissue concentrations of p,p'-DDT and p,p'-DDE, respectively, and 32.9-47.0% of that in serum. Main exposure predictors included age, occupational class, residence, diet, smoking habit, and accumulated breastfeeding time. This is one of the few studies to explore predictors of human exposure to these chemicals using a multivariate approach in a South American population. Results show that predictors of human exposure to p,p'-DDT and p,p'-DDE in Santa Cruz de la Sierra may diverge from those found in other populations of the world, due to particular sociodemographic and lifestyle characteristics of this region.
authors: Laboratory of Medical Investigations, San Cecilio University Hospital, University of Granada, Spain. jparrebola@ugr.es
authors: J P
authors: JP
authors: Arrebola
authors: E
authors: E
authors: Mutch
authors: M
authors: M
authors: Rivero
authors: A
authors: A
authors: Choque
authors: S
authors: S
authors: Silvestre
authors: N
authors: N
authors: Olea
authors: R
authors: R
authors: Ocaña-Riola
authors: L A
authors: LA
authors: Mercado
mesh_terms: D000273:Adipose Tissue / Q000737:chemistry*; D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D001838:Bolivia; D001942:Breast Feeding; D015331:Cohort Studies; D003634:DDT / Q000032:analysis / Q000097:blood*; D003633:Dichlorodiphenyl Dichloroethylene / Q000032:analysis / Q000097:blood*; D004032:Diet; D004781:Environmental Exposure / Q000032:analysis*; D005260:Female; D006801:Humans; D008019:Life Style; D016014:Linear Models; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D009790:Occupations; D010575:Pesticides / Q000032:analysis / Q000097:blood; D011634:Public Health; D012111:Residence Characteristics; D012907:Smoking; D055815:Young Adult
chemical_list: D010575:Pesticides; D003633:Dichlorodiphenyl Dichloroethylene; D003634:DDT