b3-standardize-the-survey {ctfepi}sealed case file
Standardize the Survey
Case B3, The Map in the PaperCross-Sectional and Ecological Studiesscene 3medium200 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
Two survey waves with different age structures.
Planned flag: age standardized prevalence in each wave, 4 dp each; crude prevalence in wave 2, 4 dp.
Status
[#] Sealed. This scene opens when it is written and passes review. Nothing on CTFEpi expires, so there is no rush.