Nikolas
Created page with "* Ecological study ** Also called a correlational study ** A study which aims to identify a correlation between a risk factor or protective factor and a disease ** Use data which is already collected, from *** Census data *** Registries *** Etc. ** Doesn’t use data based on individual cases ** Uses data based on the whole population, like disease prevalence, incidence, mortality ** Focuses on specific problems, like within a region or population ** Advantages *** Inexp..."