title: Assessment of questionnaire-based PCB exposure focused on food frequency in birth cohorts in Japan.
abstract: We investigated the relationship between food frequency questionnaire (FFQ) responses and serum polychlorinated biphenyl (PCB) levels of mothers and fathers recruited from the Chiba Regional Center, which is one of the 15 regional centers of the Japan Environment and Children's Study (mothers: n = 1477, fathers: n = 219). The expected PCB values were estimated from the participants' FFQ answers and medical records (age, body mass index and number of deliveries). Based on the stepwise forward selection results of Bayesian regression models, age and fish and egg consumption were positively associated with PCB concentrations and a number of deliveries were negatively associated with PCB concentrations in mothers, whereas only age was positively associated with PCB concentrations in fathers.These findings indicated that the estimation of daily dietary intake may be useful for the prediction of PCB concentration for mothers.
authors.affiliation: Center for Preventive Medical Sciences, Chiba University, Inage-ku Yayoi-cho 1-33, Chiba City, Japan.
authors.forename: Akifumi
authors.initials: A
authors.lastname: Eguchi
authors.affiliation: Center for Preventive Medical Sciences, Chiba University, Inage-ku Yayoi-cho 1-33, Chiba City, Japan.
authors.forename: Masae
authors.initials: M
authors.lastname: Otake
authors.affiliation: Center for Preventive Medical Sciences, Chiba University, Inage-ku Yayoi-cho 1-33, Chiba City, Japan.
authors.forename: Masamichi
authors.initials: M
authors.lastname: Hanazato
authors.affiliation: Center for Preventive Medical Sciences, Chiba University, Inage-ku Yayoi-cho 1-33, Chiba City, Japan.
authors.forename: Norimichi
authors.initials: N
authors.lastname: Suzuki
authors.affiliation: Center for Preventive Medical Sciences, Chiba University, Inage-ku Yayoi-cho 1-33, Chiba City, Japan.
authors.forename: Yoshiharu
authors.initials: Y
authors.lastname: Matsuno
authors.affiliation: Center for Preventive Medical Sciences, Chiba University, Inage-ku Yayoi-cho 1-33, Chiba City, Japan.
authors.forename: Hiroko
authors.initials: H
authors.lastname: Nakaoka
authors.affiliation: Center for Preventive Medical Sciences, Chiba University, Inage-ku Yayoi-cho 1-33, Chiba City, Japan.
authors.forename: Emiko
authors.initials: E
authors.lastname: Todaka
authors.affiliation: Center for Preventive Medical Sciences, Chiba University, Inage-ku Yayoi-cho 1-33, Chiba City, Japan. cmori@faculty.chiba-u.jp.|Department of Bioenvironmental Medicine, Graduate School of Medicine, Chiba University, Chuo-ku Inohana 1-8-1, Chiba City, Japan. cmori@faculty.chiba-u.jp.
authors.forename: Chisato
authors.initials: C
authors.lastname: Mori
mesh_terms: D000328:Adult; D000818:Animals; D001499:Bayes Theorem; D015992:Body Mass Index; D015331:Cohort Studies; D004531:Eggs; D004781:Environmental Exposure / Q000032:analysis; D005247:Feeding Behavior; D005260:Female; D005399:Fishes; D005502:Food; D006801:Humans; D007564:Japan; D008297:Male; D009035:Mothers; D011078:Polychlorinated Biphenyls / Q000032:analysis*; D011795:Surveys and Questionnaires
chemical_list: D011078:Polychlorinated Biphenyls
keywords: Diet; Food frequency; Human serum; PCBs