To ensure equal exposure between cases, restrict to those born >=5 years before survey date
For consistency of household composition, restrict cases to births within, say, 10 (or 8/7/6 etc) years of the survey date, assuming household composition within the past decade would be more similar to current composition
To ensure equal exposure between cases, restrict to those born >=5 years before survey date
For consistency of household composition, restrict cases to births within, say, 10 (or 8/7/6 etc) years of the survey date, assuming household composition within the past decade would be more similar to current composition