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A RCT compared occurrence of flares in patients with gout. T…

A RCT compared occurrence of flares in patients with gout. The results showed febuxostat compared with allopurinol resulted in a HR of 1.07 (95%CI 1.02–1.09). Which of the following statements best describes the interpretation of these results?

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The following 4 scenarios are all from double-masked RCTs. W…

The following 4 scenarios are all from double-masked RCTs. Which of the following situations would be at the highest risk for decreased internal validity due to compromised masking?

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The magnetic field is uniform over each face of the box in t…

The magnetic field is uniform over each face of the box in the diagram. With 3.8 T and 9.8 T, the magnetic field at the front surface marked with a ‘?’ is given by:

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When is it appropriate to exclude patients with childbearing…

When is it appropriate to exclude patients with childbearing potential from enrollment in a clinical trial? (SELECT ALL THAT APPLY)

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An investigator conducts a study comparing lowopril (a new A…

An investigator conducts a study comparing lowopril (a new ACE-inhibitor) to lisinopril in patients with uncontrolled hypertension. The NI margin is set at 6 mmHg. Lowopril lowered blood pressure by 6.1 mmHg and lisinopril lowered by 7.8 mmHg. The difference in blood pressure lowering was 1.7 mmHg (95%CI -0.1 to 3.5). Describe the appropriate interpretation of the results in the context of the NI margin.

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An investigator would like to determine the impact of dietar…

An investigator would like to determine the impact of dietary vitamin D on the incidence of bone fracture among children ages 8-10 years. Which of the following study designs would be best for reducing the likelihood of recall bias?

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A RCT was conducted to test the efficacy of a new failure he…

A RCT was conducted to test the efficacy of a new failure heart medication compared to placebo to prevent major adverse cardiac events (MACE). The new medication was found to decrease MACE compared to placebo (RR 0.74; 95%CI 0.46 to 1.02). How is this best interpreted?

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Which of the following algorithms has a time complexity of O…

Which of the following algorithms has a time complexity of O(logn) in the best-case scenario?

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What is the primary purpose of top-down design in simulation…

What is the primary purpose of top-down design in simulation programming?

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What is the relative risk for no exacerbations in the last 6…

What is the relative risk for no exacerbations in the last 6 months in the azithromycin group compared to placebo?

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