Initial identification of confounding factors in an epidemiologic study : confounding in a case-control study of maternal serum alpha fetoprotein and breast cancer /
2) it must be associated with the disease independent of its
| Main Author: | |
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| Format: | Thesis eBook |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
1995.
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| Subjects: | |
| Online Access: | Link to OAKTrust copy |
| Summary: | 2) it must be associated with the disease independent of its a data set which was used to analyze the association between age at first full-term pregnancy, age at menarche, alcohol association between MSAFP and alcohol intake, age at first association with maternal serum alpha fetoprotein was found between the potential confounders and the exposure. The characteristics: 1) it must be associated with the exposure; confounder states that a true confounder must have three Confounding in epidemiologic studies occurs when there is a distortion in the estimate of the disease-exposure effect on exposure; and 3) it should not be an intervening fails to meet the criterion of association with the exposure. four factors have the potential to act as confounders in the full-term pregnancy and age at menarche indicates that these intake and number of previous pregnancies. Evidence of an maternal serum alpha fetoprotein (MSAFP) and breast cancer. MSAFP-breast cancer relationship. The absence of an of a third factor. The traditional definition of a of breast cancer which included age, race, body mass index, potential confounders of interest were the known predictors pregnancies and age. The study findings suggest that these relationship due to the mixing of the true effect with that The criterion examined in this analysis is the relationship This investigation examined one criterion for confounding in to exist for race, body mass index, number of previous variable on the causal pathway between exposure and disease. variables do not lead to confounding because each factor |
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| Item Description: | "Major subject: Epidemiology". Vita. |
| Physical Description: | viii, 105 leaves : illustrations ; 28 cm. Also available online. Issued also on microfiche from Lange Micrographics. |
| Bibliography: | Includes bibliographical references. |