Show complete solutions and round off your answers up to 4 decimal places. A prospective study on the relationship between aspirin use and heart attacks by the Physicians' Health Study Research Group at Harvard Medical School is presented below. The Physicians' Health Study was a 5-year randomized study of whether regular aspirin intake reduces risk of myocardial infarction or heart attack. Every other day, physicians participating in the study took either one aspirin tablet or a placebo. The study was blind those in the study did not know whether they were taking aspirin or a placebo. Of the 11,034 physicians taking a placebo, 189 suffered heart attacks over the course of the study, whereas of the 11,037 taking aspirin, 104 had heart attacks. Can we say that the intake of aspirin appears to diminish the risk of myocardial infarction? Myocardial Infarction No Group Total Yes Placebo 189 Aspirin 104 Total 293 10845 11034 10933 11037 21778 22071 Let patients taking placebo be the first group and those taking aspirin in the second group. Calculate the following and make an interpretation: 1. risk difference 2. relative risk 3. odds ratio

Indicate whether the statement is true or false, and justify your answer.Patients in Bismarck model countries are able to choose which health care provider they see.correct answer

answer

Race is a biologically valid concept. Group of answer choices True False

nb/ui/evo/index.html?elSBN=9781337705646&id%3D1305686584&snapshotld%3D2617334& College Board E ES ONLINE - Google.. * APES Book A History documenta.. AGE MINDTAP w Questions for Unit 2 gnment: AP® Review Questions for Unit 2 (Practice) tions mi6ee01h_Unit02.01m Which of the following is the lowest level of organization of biotic organisms? O a. Community O b. Population O C. Ecosystem O d. Biosphere O e. Habitat DELL

Likert scale is often used as a qualitative measurement tool  Group of answer choices TRUE FALSE

answer both to get a like.or don't attempt plz.Thanks.

Which of the following threats to internal validity can apply even when a control group is used?a.  Attrition b.  History threats c.  Instrumentation threats d.  Demand characteristics     D is the answer to this question but why? It looks to me all of them can apply. why a,b,c cannot apply? (Pleae type your answer. No handwriting)

Question 40 Intention to treat analysis is done to determine if there are differences between the intervention group and control group related to: Question 40 options: Blinding Allocation Randomization Dropout rate

This is NOT graded!