A prospective research with a relative risk (RR) of 1.81 and a p-value of 0.03 reveals a relationship between alcohol use and transitional bladder cancer. They next divide the research participants into two groups, smokers and nonsmokers, and evaluate the relationship between alcohol use and bladder cancer once more: Which of the following best explains the difference between the overall and stratified results?

Question

A prospective research with a relative risk (RR) of 1.81 and a p-value of 0.03 reveals a relationship between alcohol use and transitional bladder cancer. They next divide the research participants into two groups, smokers and nonsmokers, and evaluate the relationship between alcohol use and bladder cancer once more:  Which of the following best explains the difference between the overall and stratified results?

Quizplus · Accepted Answer

Eductional Objective: Confounding arises when the influence of an extraneous component associated with both exposure and disease muddles the exposure-disease link. Confounding bias can lead to a misleading connection between an exposure and a disease.

A Prospective Research with a Relative Risk (RR) of 1