CHILD - Mothers
The population is composed of women aged 18 years and older, who are in their second or third trimester of pregnancy at time of recruitment, and living in the four selected communities across Canada.
The population is composed of women aged 18 years and older, who are in their second or third trimester of pregnancy at time of recruitment, and living in the four selected communities across Canada.
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Sex
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Women
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Minimum age
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18
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Pregnant Women
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Second trimester
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Third trimester
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Newborns
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Twins
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Countries
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Territory
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Vancouver, Edmonton, Winnipeg, Morden, Winkler, Toronto
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Ethnic Origin
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Health Status
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Other Criteria
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Second or third trimester of pregnancy
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Supplementary Information about selection criteria
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Approximately 25% non-Caucasian families
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Sources of recruitment
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General population
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Specific population
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General Population
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Specific Population
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Supplementary Information
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Parents are recruited at routine antenatal obstetrical ultrasound visits, person to person referrals, social media advertising, at kiosks at community events, malls and baby shows, and in health care locations.
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Number of Participants
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3,579
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Number of Participants with Biological Samples
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3,487
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Supplementary Information about selection criteria
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82 children failed inclusion criteria or met exclusion criteria at birth resulting in 3542 eligible mothers for follow-up.