[Newborn of more than 4000 grams birthweight (author's transl)].

Perinatal morbidity and mortality are well known to be higher in macrosomatic neonates, whose birthweight is 4000 g or more. 398 mothers of such macrosomatic infants and 7314 mothers of infants of normal weight were retrospectively reviewed for factors possibly influencing fetal weight. The following items were found to be statistically more frequent or predominant in the study group than in the controls: preconceptional obesity, weight gain of more than 20% during pregnancy, multiparae with an history of macrosomatic infants. Gestation-diabetes (prediabetes) and a family history of diabetes mellitus were observed rarely and did not seem to be of great significance.