Interaction analysis of alcohol with BMI.

aModels are adjusted as described in Table 5 (primary study) and Table 6 (ESTHER study), but include smoking categories instead of the smoking intensity trend variable. bP-values refer to a 2 degrees of freedom Wald test for the significance of an interaction term of the alcohol drinking variable with the BMI category. Given are results of trend modelsa estimating the association of alcohol consumption with serum γ-GT levels nested in BMI strata.