Comparison of risk and protective factors for preterm birth in rural, suburban, and urban Fresno County, California

Rebecca J. Baer; Lauren Lessard; Marta Jankowska; James G. Anderson; Jessica Block; Christina D. Chambers; Jonathan Fuchs; Miriam Kuppermann; Monica R. McLemore; Gail Newel; Scott P. Oltman; Elizabeth E. Rogers; Kelli K. Ryckman; Martina A. Steurer; Jiue-An Yang; Linda S. Franck; Larry Rand; Laura L. Jelliffe-Pawlowski

doi:10.5430/jer.v4n2p50

Journal of Epidemiological Research ›› 2018, Vol. 4 ›› Issue (2) :50 -58. DOI: 10.5430/jer.v4n2p50

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Comparison of risk and protective factors for preterm birth in rural, suburban, and urban Fresno County, California

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¹ Department of Pediatrics, University of California San Diego, La Jolla, California, USA

² California Preterm Birth Initiative, University of California San Francisco, San Francisco, California, USA

³ Central Valley Health Policy Institute, California State University Fresno, Fresno, California, USA

⁴ Calit2/Qualcomm Institute, University of California San Diego, La Jolla, California, USA

⁵ Department of Pediatrics, University of California San Francisco, San Francisco, California, USA

⁶ San Francisco Department of Public Health, San Francisco, California, USA

⁷ Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, California, USA

⁸ Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California San Francisco, San Francisco, California, USA

⁹ Department of Family Health Care Nursing, School of Nursing, University of California San Francisco, San Francisco, California, USA

¹⁰ Department of Obstetrics and Gynecology, University of California San Francisco Fresno Center for Medical Education and Research, Fresno, California, USA

¹¹ Departments of Epidemiology and Pediatrics, University of Iowa College of Public Health and Carver College of Medicine, Iowa City, Iowa, USA

*Rebecca J. Baer, MPH; Email: rjbaer@ucsd.edu; Address: Department of Pediatrics, University of California San Diego, La Jolla, California, USA.

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Abstract

Preterm birth (PTB, < 37 weeks’ gestation) may impose lifelong sequelae or death. Fresno County reports the highest rate of PTB in California. A place-based approach investigating local risk factors for PTB may provide important opportunities for intervention and prevention. In this study, we examine risk and protective factors for PTB in rural, suburban, and urban Fresno County, California. The sample was drawn from Fresno County, California singleton births 2007-2012 (n = 81,021). Multivariate models of maternal risk and protective factors for PTB were stratified by rural, suburban, and urban residence. Women with diabetes, hypertension, infection, fewer than three prenatal care visits, previous PTB, interpregnancy interval less than six months, or were of Black race/ethnicity were at increased risk of PTB. The risk of PTB was highest for women residing in rural locations with preeclampsia superimposed on preexisting hypertension (adjusted relative risk (aRR) 5.7, 95% confidence interval (CI) 4.4-7.4). For women living in urban residences, maternal birth in Mexico and overweight body mass index (BMI) offered protection from PTB (aRRs 0.9), whereas participation in the Women, Infants and Children program was protective for women in either urban or rural residences (aRRs 0.8). Public insurance, < 12 year of education, underweight BMI, and interpregnancy interval of five years or more were risk factors only for women in urban residences. These findings may provide important opportunities for local intervention.

Keywords

Preterm birth / Risk factor / Place-based / Fresno County / California / Protective factor

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Rebecca J. Baer, Lauren Lessard, Marta Jankowska, James G. Anderson, Jessica Block, Christina D. Chambers, Jonathan Fuchs, Miriam Kuppermann, Monica R. McLemore, Gail Newel, Scott P. Oltman, Elizabeth E. Rogers, Kelli K. Ryckman, Martina A. Steurer, Jiue-An Yang, Linda S. Franck, Larry Rand, Laura L. Jelliffe-Pawlowski. Comparison of risk and protective factors for preterm birth in rural, suburban, and urban Fresno County, California. Journal of Epidemiological Research, 2018, 4(2): 50-58 DOI:10.5430/jer.v4n2p50

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References

Publishing order | Descend order by publishing year | Descend order by cited within

[1]	Goldenberg RL, Culhane JF, Iams JD, et al. Epidemiology and causes of preterm birth. Lancet. 2008; 371(9606): 75-84. PMid: 18177778. https://doi.org/10.1016/s0140-6736(08)60074-4

[2]	Stoll BJ, Hansen NI, Bell EF, et al. Neonatal outcomes of extremely preterm infants from the NICHD Neonatal Research Network. Pediatrics. 2010; 126(3): 443-56. PMid: 20732945. https://doi.org/10.1542/peds.2009-2959.

[3]	Committee on Understanding Premature Birth and Assuring Healthy Outcomes BoHSP. Preterm Birth: Causes, Consequences, and Prevention. 2007.

[4]	Saigal S, Doyle LW. An overview of mortality and sequelae of preterm birth from infancy to adulthood. Lancet. 2008; 371(9608): 261-9. PMid: 18207020. https://doi.org/10.1016/s0140-6736(08)60136-1.

[5]	Jelliffe-Pawlowski LL, Baer RJ, Blumenfeld YJ, et al. Maternal characteristics and mid-pregnancy serum biomarkers as risk factors for subtypes of preterm birth. BJOG. 2015. PMid: 26111589. https://doi.org/10.1111/1471-0528.13495

[6]	Baer RJ, Chambers CD, Ryckman KK, et al. Risk of preterm birth among women using drugs during pregnancy with elevated alpha-fetoprotein. J Perinatol. 2016. PMid: 27929528. https://doi.org/10.1038/jp.2016.224

[7]	Cnattingius S, Villamor E, Johansson S, et al. Maternal obesity and risk of preterm delivery. JAMA. 2013; 309(22): 2362-70. PMid: 23757084. https://doi.org/10.1001/jama.2013.6295

[8]	Shachar BZ, Mayo JA, Lyell DJ, et al. Interpregnancy interval after live birth or pregnancy termination and estimated risk of preterm birth: a retrospective cohort study. Bjog. 2016. PMid: 27405702. https://doi.org/10.1111/1471-0528.14165

[9]	Hamilton BEM JA, Osterman MJK, Driscoll AK, et al. Births: Provisional Data for 2016. Natl Vital Stat Rep. 2017; 12(64): 1-64.

[10]	March of Dimes [Internet].Aug 2017 [cited 2017 Aug 17]. Available from: http://www.marchofdimes.org/

[11]	Healthy People 2020 [Internet]. Aug 2017 [cited 2017 Aug 17]. Available from: https://www.healthypeople.gov/2020/topics-objectives/topic/maternal-infant-and-child-health/objectives

[12]	UCSF Preterm Birth Initiative [Internet]. Aug 2017 [cited 2017 Aug 17]. Available from: http://pretermbirth.ucsf.edu/

[13]	Romero R, Dey SK, Fisher SJ. Preterm labor: one syndrome, many causes. Science. 2014; 345(6198): 760-5. PMid: 25124429. https://doi.org/10.1126/science.1251816

[14]	Romero R, Espinoza J, Kusanovic JP, et al. The preterm parturition syndrome. BJOG. 2006; 113 Suppl 3: 17-42. PMid: 17206962. https://doi.org/10.1111/j.1471-0528.2006.01120.x

[15]

Henderson JJ, McWilliam OA, Newnham JP, et al. Preterm birth aetiology 2004-2008. Maternal factors associated with three phenotypes: spontaneous preterm labour, preterm pre-labour rupture of membranes and medically indicated preterm birth. J Matern Fetal Neonatal Med. 2012; 25(6): 642-7. PMid: 21827362. https://doi.org/10.3109/14767058.2011.597899.

[16]	Barros FC, Papageorghiou AT, Victora CG, et al. The distribution of clinical phenotypes of preterm birth syndrome: implications for prevention. JAMA Pediatr. 2015; 169(3): 220-9. PMid: 25561016. https://doi.org/10.1001/jamapediatrics.2014.3040

[17]	Muglia LJ, Katz M. The enigma of spontaneous preterm birth. N Engl J Med. 2010; 362(6): 529-35. PMid: 20147718. https://doi.org/10.1056/NEJMra0904308

[18]	Canada PH. The Evaluation of Place-Based Approaches 2011 [Internet]. Jun 2017 Aug 2017 [cited 2017 Jun 12]. Available from: http://www.horizons.gc.ca/sites/default/files/Publication-alt-format/2011_0074_evaluationpb_e.pdf

[19]	March of Dimes.Premature Birth Report Card 2015 [Internet]. Jun 2015 [cited 2015 Jun 15]. Available from: http://www.marchofdimes.org/materials/premature-birth-report-card-california.pdf

[20]	United States Census Bureau [Internet].Aug 2010 [cited 2017 Aug 17]. Available from: https://www.census.gov/quickfacts/fact/table/fresnocountycalifornia/PST045216

[21]	Fresno County Governments. Fresno County at a Glance 2011 [Internet] Jul 2017 [cited 2017 Jul 26]. Available from: http://www.fresnocog.org/sites/default/files/publications/One_Voice_Sacramento/Fresno_County_at_a_glance_2012_8-5X11.pdf

[22]	Office of of Statewide Health Planning and Development [Internet].Jul 2015 [cited 2015 Jul 14]. Available from: http://www.oshpd.ca.gov/hwdd/mssa/maps/Fresnopc.pdf

[23]	American Medical Association.International Classification of Diseases: ICD-9-CM 2008. 2008 ed. Chicago, IL: American Medical Association; 2007.

[24]	Baer RJ, Norton ME, Shaw GM, et al. Risk of selected structural abnormalities in infants after increased nuchal translucency measurement. Am J Obstet Gynecol. 2014; 211(6): 675 e1-19. PMid: 24949541. https://doi.org/10.1016/j.ajog.2014.06.025

[25]	United States Department of Agriculture [Internet].Aug 2017 [cited 2017 Aug 17]. Available from: https://www.fns.usda.gov/wic/women-infants-and-children-wic

[26]	Catov JM, Nohr EA, Olsen J, et al. Chronic hypertension related to risk for preterm and term small for gestational age births. Obstet Gynecol. 2008; 112(2 Pt 1): 290-6. PMid: 18669725. https://doi.org/10.1097/AOG.0b013e31817f589b

[27]

Sibai BM, Caritis SN, Hauth JC, et al. Preterm delivery in women with pregestational diabetes mellitus or chronic hypertension relative to women with uncomplicated pregnancies. The National institute of Child health and Human Development Maternal-Fetal Medicine Units Network. Am J Obstet Gynecol. 2000; 183(6): 1520-4. PMid: 11120521.

[28]	Rosenberg D, Handler A, Rankin KM, et al. Prenatal care initiation among very low-income women in the aftermath of welfare reform: does pre-pregnancy Medicaid coverage make a difference? Matern Child Health J. 2007; 11(1): 11-7. PMid: 16763773. https://doi.org/10.1007/s10995-006-0077-z

[29]	Vintzileos AM, Ananth CV, Smulian JC, et al. The impact of prenatal care in the United States on preterm births in the presence and absence of antenatal high-risk conditions. Am J Obstet Gynecol. 2002; 187(5): 1254-7.

[30]	Gueorguieva R, Morse SB, Roth J. Length of prenatal participation in WIC and risk of delivering a small for gestational age infant: Florida, 1996-2004. Matern Child Health J. 2009; 13(4): 479-88. PMid: 18661219. https://doi.org/10.1007/s10995-008-0391-8

[31]	Khanani I, Elam J, Hearn R, et al. The impact of prenatal WIC participation on infant mortality and racial disparities. Am J Public Health. 2010; 100 Suppl 1: S204-9. PMid: 20147683. https://doi.org/10.2105/ajph.2009.168922

[32]	Baumeister L, Marchi K, Pearl M, et al. The validity of information on "race" and "Hispanic ethnicity" in California birth certificate data. Health Serv Res. 2000; 35(4): 869-83. PMid: 11055453.

[33]	Barradas DT, Dietz PM, Pearl M, et al. Validation of obstetric estimate using early ultrasound: 2007 California birth certificates. Paediatr Perinat Epidemiol. 2014; 28(1): 3-10. PMid: 24117928. https://doi.org/10.1111/ppe.12083