An exploratory study of the variables impacting preterm birth rates in New Mexico

BMC Pregnancy and Childbirth

Kimberly K Leslie²  Kristina W Thiel⁵  Armida Moreno¹  Kimberley Peters⁴  Ronald Schrader³  Kara M Gwin¹ 

[1] Department of Obstetrics and Gynecology, University of New Mexico, Albuquerque, NM, USA;Holden Comprehensive Cancer Center, University of Iowa, Iowa City, IA, USA;Department of Internal Medicine, University of New Mexico, Albuquerque, NM, USA;Department of Health of the State of New Mexico, Albuquerque, NM, USA;Department of Obstetrics and Gynecology, University of Iowa, Iowa City, IA, USA

关键词: Maternal age;    Ethnicity;    Education;    Prenatal care;    Preterm birth;   

Others  :  1152822
DOI  :  10.1186/1471-2393-12-53

 received in 2011-04-04, accepted in 2012-06-21,  发布年份 2012

【 摘 要 】

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.

【 授权许可】

   
2012 Gwin et al.; licensee BioMed Central Ltd.

【 图 表 】

Figure 1.

Figure 2.

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