1:Exploring data and unadjusted (univariate) effect estimates

The summary adjusted odds ratios calculated for each level of the variable ‘Smoke_Share’ (adjusted for ethnic group) can now be added to a 2x2 table (as below) to help you interpret them. The odds ratios can be evaluated on the assumption that the effects from maternal smoking and bed sharing are additive, or are multiplicative. ................
................