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NBME 22 Answers
The risk for hemorrhagic stroke from drug X is ...
As Aristotle once quipped, “A ‘single-point in time’ doth not a cross-sectional study make.” The design of a cross-sectional study would not define “ahead of time” two cohorts (two groups); said another way, a cross-sectional design would not “split people into two groups.” In the design of a cross-sectional study there is only “one group”, and then you ask all members of that group some question (“Do you have asthma?”). At the end of a cross-sectional study, the authors will be able to make a statement like this: “We called 10,000 phone numbers with area code 415 at random and asked ‘Do you take Drug X?’ 500 responded ‘I don’t know’, 633 responded ‘Yes’, and 8,867 responded ’No’.”
this is one of those Qs where you just dont over think it and focus on your first point, that they are comparing a group with the disease vs (potentially) one without it.
Thats what i took from it at least
(sorry fi this is too late)