I got this wrong but Case contrOl (O for Odds ratio): compares group who has DISEASE vs no disease - trying to find out what caused it CohoRt (R for Relative risk): compares group with RISK FACTORS/ EXPOSURE vs no exposure - trying to figure out if they will develop disease
So...case-control studies compare a group of people with the disease and a group of people without the disease. I'm not sure I understand why you can call people randomly and call that a control group. What if among those called randomly, some of them have also had hemorrhagic strokes?
submitted by sunny(9)
why is this not a cross sectional survey? ... since we are asking at a particular time