Question

Epidemiological principles state that the selection of a comparison group in a cohort study should follow the "counterfactual ideal:" 1. Define the term counterfactual ideal. and Select the scenario that comes closest to meeting the "counterfactual ideal." (write the number in your answer and explain) 1. A study that compares male breast cancer rates among U.S. marines who were stationed at Camp Lejeune, North Carolina and were exposed to solvents in the local drinking water with breast cancer rates among men from the general U.S. population

Answer 1

The term "counterfactual ideal" refers to the concept in epidemiology where the selection of a comparison group should follow an ideal scenario that represents what would have happened if the exposed group was not exposed.

Step-by-step explanation:

The term "counterfactual ideal" refers to the concept in epidemiology where the selection of a comparison group should follow an ideal scenario that represents what would have happened if the exposed group was not exposed. This means that the comparison group should be similar to the exposed group in all aspects except for the exposure to the risk factor being studied. In the given scenario, the study that comes closest to meeting the "counterfactual ideal" is 1. A study that compares male breast cancer rates among U.S. marines who were stationed at Camp Lejeune, North Carolina and were exposed to solvents in the local drinking water with breast cancer rates among men from the general U.S. population. In this study, the comparison group (men from the general U.S. population) is similar to the exposed group (U.S. marines stationed at Camp Lejeune) in all aspects except for the exposure to solvents in the drinking water.