The following results are from a prospective study that considered predictors of mammography use in women....
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The following results are from a prospective study that considered predictors of mammography use in women. The investigators used logistic regression to analyze their data. If the responded had family history-associated risk group, they labelled "positive" and "negative" otherwise. The age was 18-65. Worry was measured in a 4 point scale ("Not at all or rarely" (1), "Sometimes" (2), "Often" (3), and "Almost all of the time" (4)). Table 3 Results of a logistic regression model for predicting annual mammography use i. ii. Variable name Family history-associated risk group Age Worry Worry-x family history-associated risk group iii. Parameter estimate (std error) .14 (.09) -.04 (.02) -.04 (.01) -.05 (.02) Significance value not sig. <0.05 <0.05 <0.05 What is the odds ratio for getting a mammogram for every 5-year increase in age? What are the odds of worry being 2? a. Among women with no family history of breast cancer, the odds ratio for worry = 2 is: (3) Among women with a family history of breast cancer, the odds ratio for worry = 1 is: (3) What is the odds ratio for having a negative family history? (2) b. (2) The following results are from a prospective study that considered predictors of mammography use in women. The investigators used logistic regression to analyze their data. If the responded had family history-associated risk group, they labelled "positive" and "negative" otherwise. The age was 18-65. Worry was measured in a 4 point scale ("Not at all or rarely" (1), "Sometimes" (2), "Often" (3), and "Almost all of the time" (4)). Table 3 Results of a logistic regression model for predicting annual mammography use i. ii. Variable name Family history-associated risk group Age Worry Worry-x family history-associated risk group iii. Parameter estimate (std error) .14 (.09) -.04 (.02) -.04 (.01) -.05 (.02) Significance value not sig. <0.05 <0.05 <0.05 What is the odds ratio for getting a mammogram for every 5-year increase in age? What are the odds of worry being 2? a. Among women with no family history of breast cancer, the odds ratio for worry = 2 is: (3) Among women with a family history of breast cancer, the odds ratio for worry = 1 is: (3) What is the odds ratio for having a negative family history? (2) b. (2)
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Applied Regression Analysis and Other Multivariable Methods
ISBN: 978-1285051086
5th edition
Authors: David G. Kleinbaum, Lawrence L. Kupper, Azhar Nizam, Eli S. Rosenberg
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