Adolescent eating disorder behaviours and cognitions: gender-specific effects of child, maternal and family risk factors.

Although boys and girls with maternal lifetime eating disorder had high odds of purging (maternal lifetime anorexia for boys and girls and lifetime bulimia for boys), these results did not reach statistical significance, probably owing to low prevalence of predictors and outcome.

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However, despite our large sample size we were able to estimate the effect of uncommon predictors on uncommon outcomes with less precision, potentially resulting in some false negatives and near-significant results.

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