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Differential effects of delivery hospital on mortality and morbidity in minority premature and low birth weight neonates

Abstract

Objective

To describe variation in mortality and morbidity effects of high-level, high-volume delivery hospital between racial/ethnic groups and insurance groups.

Study Design

Retrospective cohort including infants born at 24–32 weeks gestation or birth weights ≤2500 g in California, Missouri, and Pennsylvania between 1995 and 2009 (n = 636,764). Multivariable logistic random-effects models determined differential effects of birth hospital level/volume on mortality and morbidity through an interaction term between delivery hospital level/volume and either maternal race or insurance status.

Result

Compared to non-Hispanic white neonates, odds of complications of prematurity were 14–25% lower for minority infants in all gestational age and birth weight cohorts delivering at high-level, high-volume centers (odds ratio (ORs) 0.75–0.86, p < 0.001–0.005). Effect size was greatest for Hispanic infants. No difference was noted by insurance status.

Conclusions

Neonates of minority racial/ethnic status derive greater morbidity benefits than non-Hispanic white neonates from delivery at hospitals with high-level, high-volume neonatal intensive care units.

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References

  1. Martin JA, Hamilton BE, Osterman MJK, Driscoll AK, Drake P. Births: final data for 2016. Natl Vital Stat Rep. 2018;67:1–54.

    PubMed  Google Scholar 

  2. Lau C, Ambalavanan N, Chakraborty H, Wingate MS, Carlo WA. Extremely low birth weight and infant mortality rates in the United States. Pediatrics. 2013;131:855–60. https://doi.org/10.1542/peds.2012-2471.

    Article  PubMed  Google Scholar 

  3. Institute of Medicine. Preterm birth: causes, consequences, and prevention. Washington, DC: The National Academic Press; 2007.

    Google Scholar 

  4. Yu VYH, Doyle LW. Regionalized long-term follow-up. Semin Neonatol. 2004;9:135–44. https://doi.org/10.1016/j.siny.2003.08.008.

    Article  PubMed  Google Scholar 

  5. Phibbs CS, Baker LC, Caughey AB, Danielsen B, Schmitt SK, Phibbs RH. Level and volume of neonatal intensive care and mortality in very-low-birth-weight infants. N Engl J Med. 2007;356:2165–75. https://doi.org/10.1056/NEJMsa065029.

    Article  CAS  PubMed  Google Scholar 

  6. Cifuentes J, Bronstein J, Phibbs CS, Phibbs RH, Schmitt SK, Carlo WA. Mortality in low birth weight infants according to level of neonatal care at hospital of birth. Pediatrics. 2002;109:745–51.

    Article  PubMed  Google Scholar 

  7. Lasswell SM, Barfield WD, Rochat RW, Blackmon L. Perinatal regionalization for very low-birth-weight and very preterm infants: a meta-analysis. JAMA. 2010;304:992–1000. https://doi.org/10.1001/jama.2010.1226.

    Article  Google Scholar 

  8. Chung JH, Phibbs CS, Boscardin WJ, Kominski GF, Ortega AN, Needleman J. The effect of neonatal intensive care level and hospital volume on mortality of very low birth weight infants. Med Care. 2010;48:635–44. https://doi.org/10.1097/MLR.0b013e3181dbe887.

    Article  PubMed  Google Scholar 

  9. Lorch SA, Baiocchi M, Ahlberg CE, Small DS. The differential impact of delivery hospital on the outcomes of premature infants. Pediatrics. 2012;130:270–8. https://doi.org/10.1542/peds.2011-2820.

    Article  PubMed  PubMed Central  Google Scholar 

  10. Markus AR, Krohe S, Garro N, Gerstein M, Pellegrini C. Examining the association between Medicaid coverage and preterm births using 2010–2013 National Vital Statistics Birth Data. J Child Poverty. 2016;23:79–94. https://doi.org/10.1080/10796126.2016.1254601.

    Article  Google Scholar 

  11. Durbin DR, Giardino AP, Shaw KN, Harris MC, Silber JH. The effect of insurance status on likelihood of neonatal interhospital transfer. Pediatrics. 1997;100:E8.

    Article  CAS  PubMed  Google Scholar 

  12. Howell EA, Janevic T, Herbert PL, Egorova NN, Balbierz A, Zeitlin J. Differences in morbidity and mortality rates in black, white, and hispanic very preterm infants among New York City hospitals. JAMA Pediatr. 2018;172:269–77. https://doi.org/10.1001/jamapediatrics.2017.4402.

    Article  PubMed  PubMed Central  Google Scholar 

  13. Horbar JD, Edwards EM, Greenberg LT, Profit J, Draper D, Helkey D, et al. Racial segregation and inequality in the neonatal intensive care unit for very low-birth-weight and very preterm infants. JAMA Pediatr. 2019. https://doi.org/10.1001/jamapediatrics.2019.0241.

    Article  PubMed  PubMed Central  Google Scholar 

  14. Howell EA, Hebert PL, Zeitlin J. Racial segregation and inequality of care in neonatal intensive care units is unacceptable. JAMA Pediatr. 2019. https://doi.org/10.1001/jamapediatrics.2019.0240.

    Article  PubMed  Google Scholar 

  15. American Academy of Pediatrics Committee on Fetus and Newborn. Levels of neonatal care. Pediatrics. 2012;130:587–97. https://doi.org/10.1542/peds.2012-199.

    Article  Google Scholar 

  16. Stoll BJ, Hansen NI, Bell EF, Shankaran S, Laptook AR, Walsh MC, et al. Neonatal outcomes of extremely pretern infants from the NICHD Neonatal Research Network. Pediatrics. 2010;126:443–56. https://doi.org/10.1542/peds.2009-2959.

    Article  PubMed  PubMed Central  Google Scholar 

  17. Schmidt B, Asztalos EV, Roberts RS, Robertson CM, Sauve RS, Whitfield MF, et al. Impact of bronchopulmonary dysplasia, brain injury, and severe retinopathy on the outcome of extremely low-birth-weight infants at 18 months. JAMA. 2003;289:1124–9. https://doi.org/10.1001/jama.289.9.1124.

    Article  PubMed  Google Scholar 

  18. Ananth C, Basso O. Impact of pregnancy-induced hypertension on stillbirth and neonatal mortality in first and higher order births: a population-based study. Epidemiology. 2010;21:118–23. https://doi.org/10.1097/EDE.0b013e3181c297af.

    Article  PubMed  PubMed Central  Google Scholar 

  19. Perger L, Mukhopadhyay D, Komidar L, Wiggins-Dohlvik K, Uddin MN, Beeram M. Maternal pre-eclampsia as a risk factor for necrotizing enterocolitis. J Matern-Fetal Neonatal Med. 2016;29:2098–103. https://doi.org/10.3109/14767058.2015.1076386.

    Article  PubMed  Google Scholar 

  20. Leary P, Leary SE, Stout K, Schwartz S, Easterling TR. Maternal, perinatal, and postnatal outcomes in women with chronic heart disease in Washington State. Obstet Gynecol. 2012;120:1283–90. https://doi.org/10.1097/AOG.0b013e3182733d56.

    Article  PubMed  PubMed Central  Google Scholar 

  21. Kendrick J, Sharma S, Holmen J, Palit S, Nuccio E, Chonchol M. Kidney disease and maternal and fetal outcomes in pregnancy. Am J Kidney Dis. 2015;66:55–59. https://doi.org/10.1053/j.ajkd.2014.11.019.

    Article  PubMed  PubMed Central  Google Scholar 

  22. Nevis I, Reitsma, Dominic A, McDonald S, Thabane L, Aki E, et al. Pregnancy outcomes in women with chronic kidney disease: a systematic review. Clin J Am Soc Nephrol. 2011;6:2587–98. https://doi.org/10.2215/CJN.10841210.

    Article  PubMed  PubMed Central  Google Scholar 

  23. Persson M, Shah PS, Rusconi F, Reichman B, Modi N, Kusuda S, et al. Association of maternal diabetes with neonatal outcomes of very preterm and very low-birth-weight infants: an International Cohort Study. JAMA Pediatr. 2018;172:867–75. https://doi.org/10.1001/jamapediatrics.2018.1811.

    Article  PubMed  PubMed Central  Google Scholar 

  24. Grandi C, Tapia JL, Cardoso VC. Impact of maternal diabetes mellitus on mortality and morbidity of very low birth weight infants: a multicenter Latin America study. J Pediatr. 2015;91:234–41. https://doi.org/10.1016/j.jped.2014.08.007.

    Article  Google Scholar 

  25. Shapiro-Mendoza C, Tomashek K, Kotelchuck M, Barfield W, Nannini JW, Declercq E. Effect of late-preterm birth and maternal medical conditions on newborn morbidity risk. Pediatrics. 2008;121:e223–32. https://doi.org/10.1542/peds.2006-3629.

    Article  PubMed  Google Scholar 

  26. Yee W, Soraisham A, Shah V, Aziz K, Yoon W, Lee SK. Incidence and timing of presentation of necrotizing enterocolitis in preterm infants. Pediatrics. 2012;129:e298–304. https://doi.org/10.1542/peds.2011-2022.

    Article  PubMed  Google Scholar 

  27. Samuels N, van de Graaf R, de Jonge R, Reiss IK, Vermeulen M. Risk factors for necrotizing enterocolitis in neonates: a systematic review of prognostic studies. BMC Pediatr. 2017;17:105 https://doi.org/10.1186/s12887-017-0847-3.

    Article  PubMed  PubMed Central  Google Scholar 

  28. Cotten CM, Taylor S, Stoll B, Goldberg RN, Hansen NI, Sanchez PJ, et al. Prolonged duration of initial empirical antibiotic treatment is associated with increased rates of necrotizing enterocolitis and death for extremely low birth weight infants. Pediatrics. 2009;123:58–66. https://doi.org/10.1542/peds.2007-3423.

    Article  PubMed  PubMed Central  Google Scholar 

  29. Fang JL, Sorita A, Carey WA, Colby CE, Murad MH, Alahdab F, et al. Interventions to prevent retinopathy of prematurity: a meta-analysis. Pediatrics. 2016;137 https://doi.org/10.1542/peds.2015-3387.

    Article  PubMed  Google Scholar 

  30. Trembath A, Laughon M. Predictors of bronchopulmonary dysplasia. Clin Perinatol. 2012;39:585–601. https://doi.org/10.1016/j.clp.2012.06.014.

    Article  PubMed  PubMed Central  Google Scholar 

  31. Roberts D, Brown J, Medley N, Dalziel SR. Antenatal corticosteroids for accelerating fetal lung maturation for women at risk of preterm birth. Cochrane Database Syst Rev. 2017;3. https://doi.org/10.1002/14651858.CD004454.pub2.

  32. Linder N, Haskin O, Levit O, Klinger G, Prince T, Naor N, et al. Risk factors for intraventricular hemorrhage in very low birth weight premature infants: a retrospective case–control study. Pediatrics. 2003;111(5 Part 1):e590–5.

    Article  PubMed  Google Scholar 

  33. Chevallier M, Debillon T, Pierrat V, Delorme P, Kayem G, Durox M, et al. Leading causes of preterm delivery as risk factors for intraventricular hemorrhage in very preterm infants: results of the EPIPAGE 2 cohort study. Am J Obstet Gynecol. 2017;216:518.el–518.e12. https://doi.org/10.1016/j.ajog.2017.01.002.

    Article  Google Scholar 

  34. Handley SC, Passarella M, Lee HC, Lorch SA. Incidence trends and risk factor variation in severe intraventricular hemorrhage across a population based cohort. J Pediatr. 2018;200:24–29.e3. https://doi.org/10.1016/j.jpeds.2018.04.020.

    Article  PubMed  PubMed Central  Google Scholar 

  35. Profit J, Gould J, Bennett M, Goldstein BA, Draper D, Phibbs C, et al. Racial/ethnic disparity in NICU quality of care delivery. Pediatrics. 2017;140. https://doi.org/10.1542/peds.2017-0918.

    Article  PubMed  PubMed Central  Google Scholar 

  36. Jha AK, Orav EJ, Epstein AM. Low-quality, high-cost hospitals, mainly in South, care for sharply higher shares of elderly black, Hispanic, and Medicaid patients. Health Aff. 2011;30:1904–11. https://doi.org/10.1377/hlthaff.2011.0027.

    Article  Google Scholar 

  37. Comstock R, Castillo E, Lindsay S. Four-year review of the use of race and ethnicity in epidemiologic and public health research. Am J Epidemiol. 2004;159:611–9.

    Article  PubMed  Google Scholar 

  38. Burchard EG, Ziv E, Coyle N, Gomez SL, Tang H, Karter AJ. The importance of race and ethnic background in biomedical research and clinical practice. N Engl J Med. 2003;348:1170–5. https://doi.org/10.1056/NEJMsb025007.

    Article  PubMed  Google Scholar 

  39. Baker LC, Afendulis CC, McConville S, Phibbs CS, Fuentes-Afflick E. Differences in neonatal motality among whites and Asian American subgroups: evidence from California. Arch Pediatr Adolesc Med. 2007;161:69–76. https://doi.org/10.1001/archpedi.161.1.69.

    Article  PubMed  PubMed Central  Google Scholar 

  40. Rice WS, Goldfarb SS, Brisendine AE, Burrows S, Wingate MS. Disparities in infant mortality by race among Hispanic and non-Hispanic infants. Matern Child Health J. 2017;21:1581–8. https://doi.org/10.1007/s10995-017-2290-3.

    Article  PubMed  PubMed Central  Google Scholar 

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Funding

This work was supported by a grant R01 HD084819.

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SL obtained data for the project. GY and SL both contributed to idea development, project design, data analysis, and manuscript writing and editing. MP prepared data and assisted with data analysis.

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Correspondence to Scott Lorch.

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Yannekis, G., Passarella, M. & Lorch, S. Differential effects of delivery hospital on mortality and morbidity in minority premature and low birth weight neonates. J Perinatol 40, 404–411 (2020). https://doi.org/10.1038/s41372-019-0423-9

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