The entire population of a given community is examined, and all who are judged free of bowel cancer are questioned extensively about their diet. These people are then followed for several years to see whether their eating habits will predict their risk of developing bowel cancer. This is an example of which type of study?

Question

BlackTom AI · Accepted Answer

The scenario describes selecting a population at baseline who are free of bowel cancer, collecting detailed dietary information, and then following them over several years to observe the development of bowel cancer. This pattern is characteristic of a cohort study, where a defined group (the cohort) is followed prospectively to assess how baseline exposures relate to future outcomes.

Option 1: Cohort. This choice aligns with the design described: selection based on exposure status at baseline (diet information) and prospective follow-up for incidence of cancer.

Option 2: Clinical trial. In a clinical trial, researchers assign an intervention or exposure to participants, often randomly, to evaluate its effect on an outcome. The described study does not involve any intervention assignment or randomization; it merely observes natural dietary patterns and tracks outcomes.

Option 3: Ecologic. An ecologic study uses population-level data rather than individual-level data to examine associations (e.g., country-level cancer rates and average dietary patterns). The scenario uses individual dietary information and individual follow-up, not aggregate data.

Option 4: Community trial. A community trial (or community intervention trial) evaluates the impact of an intervention delivered to a community or group rather than individuals in a controlled exposure setting. Here, there is no deliberate intervention applied to communities; it’s observational and follows individuals based on their self-reported diet.

Putting it all together, the design described is best characterized as a cohort study, with prospective follow-up of an initially disease-free population to assess the relationship between diet and subsequent cancer risk.

PUBHEPI 2410 AU2025 (1751) Quiz Module 9: Experimental studies

View Explanation

Log in for full answers

Similar Questions

The most important longitudinal heart study in the world is being conducted in what American City since 1946:

Which of the following is not an advantage of a cohort study

A study was conducted in which 5,763 British children were recruited who had either resided or not resided with a parent that smoked. These children were then followed over a 10 year period to see if there was any development of asthma. This is an example of what type of study?

More Practical Tools for Students Powered by AI Study Helper

Homework AI Solver

Stylized AI Paper Writer

Plagiarism Checker Assistant

Citation AI Academic Writing Tool

In-Class Translation Assistant

AI Note Generator

AI Quiz Answers

Past Exam Questions from University Test Bank

Smart Practice Assistant

Adaptive Practice

Making Your Study Simpler