PPT-Moving Beyond Odds Ratios: Estimating and Presenting Absolute Risk Differences and Risk

Ashley H Schempf PhD MCH Epidemiology Training Course June 2 2012 Acknowledgements Jay Kaufman PhD McGill University Presentation at 17 th Annual MCH Epidemiology Conference New Orleans LA. Ratios ratios are one number expressed in relation to another by dividing the one number by the other For example the sex ratio of Delaware in 1990 was 343200 females to 322968 males or 106 This can easily be expressed in terms of males to females 9 Ashley H. Schempf, PhD. MCH Epidemiology Training Course. June 2, . 2012. Acknowledgements. Jay Kaufman, PhD. McGill University. Presentation . at 17. th. Annual MCH Epidemiology Conference. New Orleans, LA. Ashley H. Schempf, PhD. MCH Epidemiology Training Course. June 2, 2012. Acknowledgements. Jay Kaufman, PhD. McGill University. Presentation . at 17. th. Annual MCH Epidemiology Conference. New Orleans, LA. Outline:. Ratios!. What is a Ratio? . How to Use Ratios? . How to Simplify?. . Proportions!. What is a proportion?. Properties of proportions?. How to use proportions? . Mysterious Problems…. UNIT 6. Math 7 Plus. So far we have looked at the following ways to use ratios to find unit rates as well as to help us find other equivalent ratios. . GRAPHING IN A COORDINATE PLANE. Best used to make predictions about equivalent ratios. Statistical Significance,. Effect Size, and. Sample Size. Brief review. Causation vs. Correlation. When two variables A and B are correlated, there are four possibilities:. A causes B. B causes A. A common cause C causes both A and B. Statistical Significance,. Effect Size, and. Sample Size. Brief review. Causation vs. Correlation. When two variables A and B are correlated, there are four possibilities:. A causes B. B causes A. A common cause C causes both A and B. 3/28/17. How do we write ratios?. How do we write and simplify rates?. How do we decide whether two ratios/rates are proportional?. Today We’ll Discuss. Definition:. The . ratio. of two numbers . Warm-up 1. Practice multiplication facts at . http://www.aaastudy.com/mul39ex2.htm. . Now use this site to answer question #1. : . http://. illuminations.nctm.org/ActivityDetail.aspx?ID=64. . 2. Simplify each fraction:. Objective. I can use ratio language to describe the relationship between two quantities.. Ratios. What is a ratio?. A ratio is a comparison of two quantities. (Uses division to compare two number). It shows how many times as great one quantity is to another.. 2. Warm Up. How are these two groups alike? Different?. Group 1. Group 2. Ratio Flippable. Examples:. . 2 boys for every 3 girls. . 3 dollars for 5 pencils. Ratio. - A comparison of two or more things.. A comparison between two quantities . For every . x. units of one quantity, there are . y. units of another. A Ratio is…. Using a colon . Example:. . 2:3. As a fraction . Example: . Quiz 6A. . A comparison of two numbers by division. Ratio. . A comparison of two quantities that have different kinds of units. Rate. . A rate in which the second quantity is 1.. Unit Rate. . Ratios, Rates, Unit Rates, & Conversion Factors. . pay. . ratios. ?. Renzo Carriero. Department of Cultures, Politics and Society. University of Torino – Italy. & . Collegio. Carlo Alberto, Torino. 1st ISSP User Conference – Social Inequality – 12 December 2022.