11. Study Table 2 that reports the odds-ratios comparing various measures of pesticide exposures in childhood to RA status. In one (1) sentence explain the difference between the age-adjusted and fully-adjusted model.
Odds Ratio is the measure of association between an exposure and an outcome.
Fully Adjusted Odds Ratio is the odds ratio calculated after taking all the potential confounding factors into account when looking into the association between an exposure and an outcome. ( In this problem, the confounding factors are age, race or ethnicity, college education, pack years of smoking and childhood socio-economic status score)
Age Adjusted Odds Ratio is the odds ratio calculated by taking only age factor into account when looking at the association.
11. Study Table 2 that reports the odds-ratios comparing various measures of pesticide exposures in childhood...
12. The only finding in Table 2 that is statistically significant (p<0.05) using the fully-adjusted model is: a. Personally applying residential pesticides most or all of the time b. Ever exposed to residential pesticides on a monthly basis c. Not living on a farm or near a farm D. Both A and B are correct d. Table2. Childhood Residential Factors, Potential Pesticide Exposures, and Association With Rheumatoid Arthritis Sister Study, United States, 2004-2009 Case Patients Patients (n 48,919) Fully Adjusted...
9. Look at the footnotes in table 1 and choose the correct statement: a. Missing data on pack-years of smoking may introduce bias given that non-cases are more likely to have missing smoking data compared with cases. b. It is unlikely that missing pack-years of smoking will bias the results given that cases and non-cases have similar proportions of missing pack-years data. c. The rate of missingness of pack-year data in non-cases is unacceptably high therefore this variable should not...
7. What is the purpose of Table 1 ? a. To display the main analytical findings of the study. b. To display the most pertinent sub-analyses findings. c. To display descriptive participant characteristics by exposure or outcome group (depending on study design). d. Both A and B are correct. Table 1. Characteristics of Case and Noncase Patients With Rheumatoid Arthritis, Sister Study, United States, 20042009 Case Patients Noncase Patients With RA Characteristic (n 424)(n 48,919) No. % 57.9 (8.2) 55.1...