An exploratory study of the variables impacting preterm birth rates in New Mexico
BMC pregnancy and childbirth
NLM Title Abbreviation
Bmc Pregnancy Childbirth
BACKGROUND: Preterm birth (PTB) is a substantial health problem that accounts for significant infant morbidity and mortality and poses an economic burden to both individuals and the state of residence. The goal of this study was to identify maternal risk factors for PTB in New Mexico, a poor state with a unique ethnic background, in order to identify populations at increased risk that would benefit from intervention. METHODS: This was a cross-sectional retrospective exploratory analysis of 377,770 singleton live births in the state of New Mexico from 1991-2005. Gestational age of less than 37 weeks was defined as PTB. The Kotelchuck Index was used as a measure for level of prenatal care described as inadequate, intermediate, adequate, and intensive. RESULTS: Of the live births analyzed, 28,036 of these were preterm (7.4%). Overall the PTB rate rose at a rate of 0.18% per year from 1991-2005. Among patients with medical risk factors, the absence of prenatal care was associated with higher odds for PTB as compared to adequate prenatal care. Other risk factors were unmarried status, education less than high school, tobacco/alcohol use, black, Asian, and white Hispanic ethnicity, and the presence of one or more medical risk factors. Statistically significant protective factors for PTB were age 25-29, education surpassing high school, and Native American race. CONCLUSIONS: This study identified several factors that correlate with increased PTB in New Mexico, in particular ethnicity and level of prenatal care. The finding that Native American patients have a lower PTB rate compared to other groups, even though this group is traditionally one of low socioeconomic status in New Mexico, signifies that other factors yet to be identified affect PTB.
Adolescent, Adult, African Americans/statistics & numerical data, Age Factors, Alcohol Drinking/epidemiology, Asian Continental Ancestry Group/statistics & numerical data, Cross-Sectional Studies, Educational Status, Female, Hispanic Americans/statistics & numerical data, Humans, Indians, North American/statistics & numerical data, Marital Status/statistics & numerical data, New Mexico/epidemiology, Pregnancy, Pregnancy Complications/epidemiology, Pregnancy, High-Risk, Premature Birth/epidemiology/ethnology, Prenatal Care/statistics & numerical data, Retrospective Studies, Risk Factors, Smoking/epidemiology, Young Adult
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