Curva de crecimiento intrauterino de recién nacidos peruanos

Abstract

Objectives: To obtain peruvian intrauterine growth curves and analyze the influence of fetal sex, parity, maternal height and natural region in the fetal weight. Method: Prospective enrollment of successive live newborns of 29 Hospitals of Peru, born in 2005, and registered in the Perinatal Information System (SIP2000). Anthropometrics techniques recommended by the CLAP-OPS/OMS were used. Diagnosis of gestational age was made by date of the last menstrual period. Were selected newborns without risk factors for intrauterine growth retardation. Newborns weights distribution was made in percentile curves. Results: 50,568 newborns were selected from 99,439 births. Percentile 10, 50 and 90 and was calculated, and also percentile 2.5 and 5 to classify the newborn small for gestational age in mild, moderate or severe. The 55.7% of newborns had 39 or 40 weeks of gestation, with an average birth weight of 3,295 and 3,400 g, with a 10 percentile of 2,750 and 2,875 grams, respectively. The multiparity, high maternal height, male fetal sex and birth on the coast produced significantly higher birth weight, between weeks 36 to 42 weeks. Conclusions: It is recommended to use these intrauterine growth curves for better classification of the peruvians newborns.