Intrauterine growth and neonatal weight gain in babies of women with anorexia nervosa

populations who are heterogeneous with regard to risk susceptibility.The patient with above average susceptibility may develop risk factors, though his or her behaviour may not be aberrant in statistical terms.The first approach confirms the importance of individual prevention and care, whereas the second shows that prevention is necessary also at the level of populations.We thank Ms G Cohier, M Lagrost, C Chabert, H Eydoux, C Marcoul, and S Perles for collecting the survey data and Dr B Krajevitch for examining the children.