[Associated factors in newborns with intrauterine growth retardation].

OBJECTIVE: To identify the risk factors implicated in the intrauterine growth retardation (IUGR) of neonates born in a social security institution.

METHODS: Case controls design study in 376 neonates: 188 with IUGR (weight < 10 percentile) and 188 without IUGR. When they born, information about 30 variables of risk for IUGR were obtained from mothers. Risk analysis and logistical regression (stepwise) were used.

RESULTS: Odds ratios were significant for 12 of the variables. The model obtains by stepwise regression included: weight gain at pregnancy, prenatal care attendance, toxemia, chocolate ingestion, father's weight, and the environmental house.

CONCLUSIONS: Must of the variables included in the model are related to socioeconomic disadvantages related to the risk of RCIU in the population.