What is the definition of the risk difference?Question 4Answera.The difference in proportion of subjects with the outcome of interest in each groupb.The number of patients you need to give an intervention to in order to prevent one additional negative outcomec.One minus the risk ratiod.The probability of an event in the treatment group divided by the probability of an event in the control group

What is the definition of relative risk?Question 1Answera.One minus the risk ratiob.The number of patients you need to give an intervention to to prevent one additional negative outcomec.The difference in proportion of subjects with the outcome of interest in each groupd.The probability of an event in the treatment group divided by the probability of an event in the control group

What is the definition of relative risk reduction?Question 2Answera.The number of patients you need to give an intervention to in order to prevent one additional negative outcomeb.The difference in proportion of subjects with the outcome of interest in each groupc.The probability of an event in the treatment group divided by the probability of an event in the control groupd.One minus the risk ratio

Risk _____ refers to reducing the impact of a risk event by reducing the probability of its occurrence

Risk difference is also known asQuestion 12Answera.Relative riskb.Number needed to treatc.Relative risk reductiond.Absolute risk reduction

What is the primary difference between risk and prevalence?1 pointPrevalence describes the number of diseased persons present in the population divided by the number of persons in the population in a specified time period, whereas risk describes the number of newly diseased person present in the population divided by the number of at-risk persons in the population in a specified time period. Prevalence describes the number of diseased person present in the population in a specified time period whereas risk describes the number of people who die from the disease in the population in a specified time period.Risk describes the number of diseased persons present in the population divided by the number of persons in the population during a specified time period, whereas prevalence describes the number of newly diseased person present in the population in a specified time period divided by the number of at- risk persons in the population.