A descriptive analysis of updated information and an evaluation of the effects of non-response in a case-control study of breast cancer and maternal serum alpha-fetoprotein /
'exposure' categories of selected characteristics among
| Main Author: | |
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| Format: | Thesis eBook |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
1997.
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| Subjects: | |
| Online Access: | Link to OAKTrust copy |
| Summary: | 'exposure' categories of selected characteristics among (2.253︢.59 glasses per week vs. 1.89 3︢.20 glasses per (60.09% vs. 34.78%). Respondents compared to non- (83.70% vs. 69.86%). Among respondents being a case was (AFP) and breast cancer (target population) were invited to about health and reproductive events. The response rate about the target population using only questionnaire alcohol almost perfect agreement with baseline data when giving also strongly associated with having a family history of among the target population was low (40%) but was similar for bias was not adequately addressed due to theoretical and breast cancer (X2,=19.25, p<0.001). The distribution of cases and controls. The internal validity of inferences coding inconsistencies between baseline versus collected at baseline for the target population to the same collected at baseline. Respondents were considered to be in complete a mail questionnaire to gather updated information details about year of termination of the first full-term and evident when baseline data for respondents was compared exposure odds ratios (OR) for selected characteristics first full-term pregnancy at 21 years of age or older found for most other variables. Comparing the measure of association calculated for questionnaire questionnaire data affected the level of agreement questionnaire responses about selected pregnancy and questionnaire. reproductive details to information about the same details respondents compared to non-respondents. The third compared respondents only. The second calculated the odds of being in respondents to non-respondents, respondents drank more respondents was assessed in three ways. The first compared respondents were also more likely to have experienced a selected for evaluation. These biases should not affect Selection bias due to non- or differential response was technical problems associated with each variable the index pregnancies (k=0.93 and k=0.98), but The participants or their proxies of a case-control study of the relationship between maternal serum alpha-fetoprotein the utility of the updated information obtained on the to that of the target population. Misclassification week), were more likely to be white(82.89% vs. 62.03%) and have attended college women in the high AFP category among respondents was |
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| Item Description: | "Major subject: Epidemiology". Vita. |
| Physical Description: | x, 97 leaves ; 28 cm. Also available online. Issued also on microfiche from Lange Micrographics. |
| Bibliography: | Includes bibliographical references: pages 93-96. |