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What kind of controls to use in case control studies of malformed infants: Recall bias versus ?teratogen nonspecificity? bias

✍ Scribed by Hook, Ernest B.

Publisher: John Wiley and Sons
Year: 2000
Tongue: English
Weight: 30 KB
Volume: 61
Category: Article
ISSN: 0040-3709
DOI: 10.1002/(sici)1096-9926(200005)61:5<325::aid-tera1>3.0.co;2-m

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✦ Synopsis

that are prospective non-case control. In the absence of random or at least nondifferential assignment of exposure, the possibility of undetected confounding due to association of exposure or defect with some uncontrolled variable complicates causal interpretation of the association of a birth defect and maternal exposure or other parental variables concerning the pregnancy.

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