Comparison of strict versus single-criterion vegetarianism interactions.

For each of the three lead variants in vegetarianism interactions, the strict vegetarianism selection we developed produced stronger interaction effects and more significant P-values than a single-criterion vegetarianism definition based only on one survey question. Results for standard and BMI-adjusted models are shown. All models (single and strict crierion) used robust standard errors to correct for heteroskedasticity. CHR, chromosome; POS, position; Nveg, number of vegetarians in interaction analysis; Nnonveg, number of nonvegetarians in the interaction analysis; EA, effect allele; NEA, non-effect allele; EA Freq, frequency of effect allele; G, genotype; SE, standard error.
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