Question

Question Help Use the data in the companying table that summarizes out from a clinical a drug. Find the odds rato and relative risk for an infection in the group treated with the drug compared to the placebo group. Based on this result, does the drug appear to increase the risk of an infection? Why of why not? O Infection No Infectio Drug Treatment 784 Placebo 27 250 The odds ratios Round to the decimal places as needed The relative risk is Hound to three decimal places as needed) The drug to increase the risk of infection. The odds ratio shows that the odds in favor of an infectionare treatment group are times more likely to get an infection to the people in the placebo group Round to three decimal places as needed) times higher for someone using the drug as opposed to inga placebo The relative shows that people in the

Answer 1

Risk is the probability of occurrence of an outcome (Here infection occurence)

Risk of Drug treatment group = 97/(97+764) = 11.2696% or 0.112696

Risk of Placebo group = 27/(27+250) = 9.7473% or 0.097473

Relative Risk

= Risk in Drug treatment group/ Risk in Placebo group

= 11.2696%/9.7473% = 1.156

Odds means the probability of occurrence of an event divided by the probability of non occurence of that event.

Odds in Drug treatment group = 97/764 = 0.12696 or 12.696%

Odds in Placebo group = 27/250 = 0.108 or 10.8%

Odds ratio

= Odds in Drug treatment group/Odds in Placebo group

= 12.696%/10.8%

= 1.176

1. Odds Ratio = 1.176

2. Relative Risk = 1.156

3. For the given blank we do not have the options to choose from, so we are giving a word which suits the given case. You have to select an option which is similar to the mentioned word here.

"Seems" is the word

4. 1.176 times

5. 1.156 times