Are my answers correct? Group # Randomized # Free of Hypertension at 12 week Placebo 50 6 New Drug 50 12 A clinical trial is run to assess the efficacy of a new drug to reduce high blood pressure. Patients with diagnosis of hypertension (high blood pressure) are recruited to particpate in the trial and randomized to receive either the new drug or placebo. Participants take the assigned drug for 12 weeks and their blood pressure status is recorded. At the end of the trial, participants are classified as still having hypertension or not. a. What is the prevalence of hypertension at the end of the trial? Prevalence2005 = 20/100 b. Estimate the relative risk comparing the proportions who are free of hypertension at 12 weeks between groups. Relative Risk = .1363/.3888 = 3.5
Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
Are my answers correct?
| Group | # Randomized | # Free of Hypertension at 12 week |
| Placebo | 50 | 6 |
| New Drug | 50 | 12 |
A clinical trial is run to assess the efficacy of a new drug to reduce high blood pressure. Patients with diagnosis of hypertension (high blood pressure) are recruited to particpate in the trial and randomized to receive either the new drug or placebo. Participants take the assigned drug for 12 weeks and their blood pressure status is recorded. At the end of the trial, participants are classified as still having hypertension or not.
a. What is the prevalence of hypertension at the end of the trial?
Prevalence2005 = 20/100
b. Estimate the relative risk comparing the proportions who are free of hypertension at 12 weeks between groups.
Relative Risk = .1363/.3888 = 3.5
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