b3-prevalence-snapshot {ctfepi}sealed case file
Prevalence Snapshot
Case B3, The Map in the PaperCross-Sectional and Ecological Studiesscene 1easy100 pts
Case
A newspaper map links district salt sales to stroke; you test what district data can and cannot say.
What this scene will ask
A cross-sectional survey of a common condition.
Planned flag: prevalence, 3 dp; prevalence ratio, 3 dp; prevalence odds ratio, 3 dp, to show the gap.
Status
[#] Sealed. This scene opens when it is written and passes review. Nothing on CTFEpi expires, so there is no rush.