[The problem of low-weight newborns (author's transl)].

The authors had on their own ward 5.242 deliveries, over the past five years. Relative underweight was recorded from 311 in 5.282 newborns. The case histories of mothers of the low-weight newborns were taken down by means of a questionnaire and statistically evaluated. The results then were compared with data obtained from a control group equal in number. The conclusion was drawn that birth of a low-weight child could be expected in situations in which conditions were adverse prior to and during pregnancy. The birth of a low-weight child could be predicted with mathematical accuracy, if unfavourable conditions accumulated. - Perinatal problems and mortality were analysed, with reference being made to diagnoses and therapeutic steps. - The point was also made that decline in the number of newborns with underweight will probably result from further enhancement of cultural and social living standards. At present, almost eleven per cent of all newborns in Hungary are delivered prematurely.