A research team enrolls 150150 adults without diabetes and records their diets and physical activity now, then follows them for 1010 years to observe who develops type 22 diabetes. Which statement best characterizes this design?

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Problem 35Multiple Choice

A research team enrolls $150$ adults without diabetes and records their diets and physical activity now, then follows them for $10$ years to observe who develops type $2$ diabetes. Which statement best characterizes this design?

This is a prospective cohort study because participants are free of the outcome at baseline and are followed forward in time to observe incident diabetes.

This is a cross-sectional study because exposures and outcomes are measured at a single time point.

This is a randomized controlled trial because the researchers assign participants to different diets.

This is a case-control study because investigators start with people who already have diabetes and compare their past exposures.

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