End of Module C2 Quiz

A prospective cohort study was conducted in an Italian population with hypertension to examine whether uncontrolled blood pressure despite antihypertensive treatment is associated with higher risk of type 2 diabetes. The following Kaplan-Meier curve presents the cumulative hazard of incident diabetes in individuals with controlled and uncontrolled blood pressure.

Source: Izzo R et al. Insufficient control of blood pressure and incident diabetes. Diabetes Care 2009; 32(5): 845-850

Which of the following statements is true?

Which one of the following statements is true for Cox regression:

Which one of the following approaches is NOT appropriate to assess if the proportionality assumption is violated in a Cox regression model:

Which one of the following approaches is appropriate to deal with the violation of the proportionality assumption in a Cox regression model:

We design a cohort study to examine the effect of smoking behavior on all-cause mortality by fitting a crude Cox regression model. Which one of the following variables is NOT necessary to be available in the dataset:

Which of the following is a disadvantage of the stratified Cox regression model?

A prospective cohort study examined the association of serum urate with the risk of diabetes, finding a hazard ratio of 1.16 per 1 mg/dL increase in serum urate for diabetes risk. What is the hazard ratio for a 10 mg/dL increase in serum urate?

Which one of the following statements about censoring is false?

Based on a study of smoking’s effect on cardiovascular diseases in diabetics, which statement is FALSE?

In a study on cannabis use and lung cancer risk, which statement is false?