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Questionnaire results on exposure characteristics of pregnant women participating in the Japan Environment and Children Study (JECS).


ABSTRACT: The Japan Environment and Children's Study (JECS) is a nation-wide birth cohort study investigating environmental effects on children's health and development. In this study, the exposure characteristics of the JECS participating mothers were summarized using two questionnaires administered during pregnancy.Women were recruited during the early period of their pregnancy. We intended to administer the questionnaire during the first trimester (MT1) and the second/third trimester (MT2). The total number of registered pregnancies was 103,099.The response rates of the MT1 and MT2 questionnaires were 96.8% and 95.1%, respectively. The mean gestational ages (SDs) at the time of the MT1 and MT2 questionnaire responses were 16.4 (8.0) and 27.9 (6.5) weeks, respectively. The frequency of participants who reported "lifting something weighing more than 20 kg" during pregnancy was 5.3% for MT1 and 3.9% for MT2. The Cohen kappa scores ranged from 0.07 to 0.54 (median 0.31) about the occupational chemical use between MT1 and MT2 questionnaires. Most of the participants (80%) lived in either wooden detached houses or steel-frame collective housing. More than half of the questionnaire respondents answered that they had "mold growing somewhere in the house". Insect repellents and insecticides were used widely in households: about 60% used "moth repellent for clothes in the closet," whereas 32% applied "spray insecticide indoors" or "mosquito coil or an electric mosquito repellent mat."We summarized the exposure characteristics of the JECS participants using two maternal questionnaires during pregnancy.

SUBMITTER: Iwai-Shimada M 

PROVIDER: S-EPMC6138908 | biostudies-other | 2018 Sep

REPOSITORIES: biostudies-other

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Questionnaire results on exposure characteristics of pregnant women participating in the Japan Environment and Children Study (JECS).

Iwai-Shimada Miyuki M   Nakayama Shoji F SF   Isobe Tomohiko T   Michikawa Takehiro T   Yamazaki Shin S   Nitta Hiroshi H   Takeuchi Ayano A   Kobayashi Yayoi Y   Tamura Kenji K   Suda Eiko E   Ono Masaji M   Yonemoto Junzo J   Kawamoto Toshihiro T  

Environmental health and preventive medicine 20180915 1


<h4>Background</h4>The Japan Environment and Children's Study (JECS) is a nation-wide birth cohort study investigating environmental effects on children's health and development. In this study, the exposure characteristics of the JECS participating mothers were summarized using two questionnaires administered during pregnancy.<h4>Methods</h4>Women were recruited during the early period of their pregnancy. We intended to administer the questionnaire during the first trimester (MT1) and the second  ...[more]

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