4. Two investigators were interested in testing the hypothesis that high educational attainment is associated with more

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4 Two Investigators Were Interested In Testing The Hypothesis That High Educational Attainment Is Associated With More 1 (67.08 KiB) Viewed 11 times

4. Two investigators were interested in testing the hypothesis that high educational attainment is associated with more frequent unintentional injuries in the home. To test their hypothesis the investigators selected a random sample of 5,000 men and women, 21 years of age and older, living in owner-occupied, single-family dwellings in Seattle, Washington. Data were also collected on potential confounders, such as age, sex, income level, and health status. The results of this analytic cross-sectional study were as follows: • 10% of the sample had high educational attainment (defined as a college degree or 500 higher) and unintentional injuries in the home in the previous 12 months . 10% of the sample had high educational attainment but no unintentional injuries in 500 the home in the previous 12 months 20% of the sample had low educational attainment (defined as having less than a 1000 college degree) and unintentional injuries in the home in the previous 12 months • 60% of the sample had low educational attainment but no unintentional injuries in 300 the home in the previous 12 months Based on this information, calculate and interpret: (a) the crude prevalence of unintentional injuries in the home, (b) the prevalence ratio and, (c) the prevalence odds ratio and (d) the statistical significance of the prevalence. Assuming that the study was designed to minimize bias and confounding, was the investigators' hypothesis supported, and why or why not? مله