Question

In a clinical trial to study if an experimental drug can lower diastolic blood pressure, 780 participants suffering from high blood pressure were randomly assigned to one of three groups. Over a one-month period, the first group received a low dosage of the experimental drug, the second group received a high dosage of the drug, and the third group received a placebo. Neither the patients nor those analyzing the results knew what type of treatment each patient received. The diastolic blood pressure (in mmHg) of each participant was measured at the beginning and at the end of the period and the change in blood pressure was recorded.

a) Describe the 5 W’s and How, if the information is given. If the information is not given, state that it is not specified.

b) List the variables. Indicate whether each variable is categorical or quantitative. If the variable is quantitative, give the units.

Answer 1

ANSWER::

a)

Change in diastolic blood pressure.

To identify the level of factor the diastolic pressure of each participant should measure at beginning and at the end.

The 5W's are:-

1. When is consuming sodium healthy for your heart?

A. All the time. The more high-sodium foods you consume, the better your health.

B. Minimally. Consuming extra sodium can lead to a rise in blood pressure.

C. Never, avoiding salt at all costs is crucial for preventing heart disease.

D. Whenever it feels right. Eating salt has no affect on my heart’s health

2. What are the benefits of aspirin to the heart?

A. Prevents a heart attack.

B. Increases your chance of surviving a heart attack.

C. Reduces your risk of a second heart attack.

D. All of the above.

3. Why is a cigarette smoker at greater risk for heart attack?

A. The smoke passes from the lungs to the heart, making it beat slower or faster.

B. Smoking can damage blood vessels and cause clots, potentially leading to heart attack.

C. A life-long smoker is more likely to have a heart attack than someone who has been smoking for a few years because it builds up.

D. Smoking does not affect a person’s heart health.

4. Where should you have your cholesterol checked?

A. Do a home cholesterol check.

B. Drive to the ER to get an emergency cholesterol test.

C. Have a doctor perform a cholesterol test.

D. Let a neighbor take the cholesterol reading.

5. Who is your most important partner for your heart health?

A. Your mother.

B. Your true love.

C. Your kids.

D. Your primary care physician on.

b)

These are quantitative variables(or continuous variables) , which can assume as infinite range if values.

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