RESUMO
OBJECTIVE: To determine the risk factors associated with having a very low birth weight (VLBW) infant as a follow-up to the first phase of a Perinatal Periods of Risk approach. DESIGN AND SAMPLE: Retrospective cohort analysis of birth certificates. Population-based sample of 53,427 birth certificates for the city under study during the years 1999-2006. MEASURES: The relationship of selected maternal characteristics as predictors of VLBW using multivariate logistic regression analysis. RESULTS: The maternal characteristics associated with VLBW were as follows: no prenatal care (OR = 4.04), inadequate weight gain (OR = 3.97), Black, non-Hispanic race (OR = 1.50), less than 20 years old (OR = 1.42) and more than 35 years old (OR = 1.43). After analyzing age and race/ethnicity together, Black non-Hispanic women less than 20 years of age (OR = 2.70) or over 35 years of age (OR = 2.45) still had an increased odds for having a VLBW infant whereas Black non-Hispanic women between the ages of 20 and 35 did not. CONCLUSIONS: The findings of this study suggest educating women on the importance of preconception care, prenatal care, and adequate pregnancy weight gain to reduce the odds of having a VLBW infant.
