Why is it important to use rates for comparison of health and disease among subpopulations?

2 answers

subpopulations have different diets, culture, habits, genes and all these generate different risk factors for health and disease. Coal miners in West Virgina are substantially different in those things listed above as compared to Indians in Oregon.
subpopulations have different diets, culture, habits, genes and all these generate different risk factors for health and disease. Coal miners in West Virgina are substantially different in those things listed above as compared to Indians in Oregon.