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Winnicott Research Unit, School of Psychology, University of Reading, Reading, UK
Correspondence: Professor Peter J. Cooper, Winnicott Research Unit, School of Psychology, University of Reading, 3 Earley Gate,Whiteknights, Reading RG6 6AL, UK. E-mail p.j.cooper{at}rdg.ac.uk
Declaration of interest None. Funding detailed in Acknowledgements.
Previous studies have suggested that collecting psychiatric data on relatives in family studies by asking probands to provide information on them leads to a bias in estimates of morbidity risk, because probandsaccounts are influenced by their own psychiatric histories. We investigated this in a UK sample and found that daughtersanxiety disorder histories did not influence their reports of anxiety disorder in mothers, but their history of mood disorder/alcohol dependence made them more sensitive in predicting mood disorder/alcohol dependence in mothers.