A big prospective research is looking into the link between alcohol intake and breast cancer. Through a random selection of residence locations, 4000 middle-aged women are included in the research. Periodic surveys are used to examine daily alcohol intake and breast cancer incidence. The authors report a relative risk of 1.32 (95 percent confidence range = 0.90-1.85) for alcohol intake and breast cancer after a five-year follow-up; 800 participants were lost to follow-up at the conclusion of the research, the majority of whom were moderate to heavy alcohol drinkers. Which of the following biases is most likely to be present and may have influenced the results, based on this information?

Question

Quizplus · Accepted Answer

Eductional Objective: A disproportionate loss to follow-up between the exposed and unexposed groups in prospective research introduces the possibility of attrition bias, which is a type of selection bias. As a result, in prospective trials, investigators often strive for high patient follow-up rates.

A Big Prospective Research Is Looking into the Link Between