12) The association between cellular telephone use and the risk of brain cancer was investigated in acase-control study. The study included 335 cases and 300 controls, and the following results wereobtained:Cellular YesPhoneUserNoTotalCellPhoneUsersCases Controls225Yes11033512a) Calculate the odds ratio based on these data and provide a brief interpretation.15012b) If the 95% confidence interval for the odds ratio is 1.75 -2.14, and a = 0.05, which of thefollowing represents an appropriate conclusion for this finding:111 100150a) The true strength of association could be estimated more precisely if the study were repeatedwith a larger sampleb) The association is "statistically significant"c) The "p-value" associated with this odds ratio is less than 0.05.d) All of the above30012 continued) Gender was considered a potential confounder and effect measure modifier in thisstudy, and the data were stratified accordingly:MalesCases Controls29 50No 95 5010012c) Calculate the odds ratios for the association between cell phone use and brain cancer risk,stratified by gender and provide a brief interpretation12d) Is gender a confounder in this study? ExplainYesNoFemales12e) Is gender an effect measure modifier in this study? ExplainCases Controls100

The association between cellular telephone use and the risk of brain cancer was investigated in a…

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Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

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12) The association between cellular telephone use and the risk of brain cancer was inve case-control study. The study included 335 cases and 300 controls, and the following res obtained: Cellular Yes Phone User No Total Cases Controls 225 150 110 335 300 150