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Perinatal Periods of Risk: Phase 2 Analytic Methods for Further Investigating Feto-Infant Mortality

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Abstract

The perinatal periods of risk (PPOR) methods provide a framework and tools to guide large urban communities in investigating their feto-infant mortality problem. The PPOR methods have 11 defined steps divided into three analytic parts: (1) Analytic Preparation; (2) Phase 1 Analysis—identifying the opportunity gaps or populations and risk periods with largest excess mortality; and (3) Phase 2 Analyses—investigating these opportunity gaps. This article focuses on the Phase 2 analytic methods, which systematically investigate the opportunity gaps to discover which risk and preventive factors are likely to have the largest effect on improving a community’s feto-infant mortality rate and to provide additional information to better direct community prevention planning. This article describes the last three PPOR epidemiologic steps for investigating identified opportunity gaps: identifying the mechanism for excess mortality; estimating the prevalence of risk and preventive factors; and estimating the impact of these factors. While the three steps provide a common strategy, the specific analytic details are tailored for each of the four perinatal risk periods. This article describes the importance, prerequisites, alternative approaches, and challenges of the Phase 2 methods. Community examples of the methods also are provided.

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References

  1. Sappenfield, W., et al. (in press). Perinatal periods of risk: Analytic preparation and phase 1 analytic methods for investigating feto-infant mortality. Maternal and Child Health Journal.

  2. Peck, M. G., Sappenfield, W. M., & Skala, J. (in press). Perinatal periods of risk: A community approach for using data to improve women and infants’ health. Maternal and Child Health Journal.

  3. EpiInfo Version 3.5.1. Database and statistics software for public health professionals. Centers for Disease Control and Prevention. http://www.cdc.gov/epiinfo/.

  4. Fleiss, J. L. (1981). Determining sample sizes needed to detect a difference between two proportions. In Statistical methods for rates and proportions (pp. 44–46). New York, NY: Wiley.

  5. Lu, M. C., & Halfon, N. (2003). Racial and ethnic disparities in birth outcomes: A life-course perspective. Maternal and Child Health Journal, 7(1), 13–30.

    Article  PubMed  Google Scholar 

  6. American Academy of Pediatrics Task Force on Sudden Infant Death Syndrome. (2005). The changing concept of sudden infant death syndrome: Diagnostic coding shifts, controversies regarding the sleeping environment, and new variables to consider in reducing risk. Pediatrics, 116(5), 1245–1255.

    Article  Google Scholar 

  7. Rothman, K. J., & Greenland, S. (1998). Attributable fraction estimation. In Modern epidemiology (2nd Ed., pp. 295-297). Philadelphia: Lippincott, Williams & Wilkins.

  8. CityMatCH. (2008). PPOR national data tables. http://www.citymatch.org/ppor_index.php. Accessed November 23, 2008.

  9. Besculides, M., & Laraque, F. (2005). Racial and ethnic disparities in perinatal mortality: Applying the perinatal periods of risk model to identify areas for intervention. Journal of the National Medical Association, 97(8), 1128–1132.

    PubMed  Google Scholar 

  10. Callaghan, W. D., MacDorman, M. F., Rasmussen, S. A., et al. (2006). The contribution of preterm birth to infant mortality rates in the United States. Pediatrics, 118, 1566–1573.

    Article  PubMed  Google Scholar 

  11. Matthews, T. J., & MacDorman, M. F. (2008). Infant mortality statistics from the 2005 period linked birth/infant death data set. National Vital Statistics Reports, 57(2), 1–32.

    Google Scholar 

  12. Fleiss, J. L. (1981). The standardization of rates. In Statistical methods for rates and proportions (pp. 237–255). New York, NY: Wiley.

  13. Kitagawa, E. M. (1955). Components of a difference between two rates. Journal of the American Statistical Association, 50, 1168–1194.

    Article  Google Scholar 

  14. Wise, P. H. (2003). The anatomy of a disparity in infant mortality. Annual Review of Public Health, 24, 341–362.

    Article  PubMed  Google Scholar 

  15. CityMatCH. (2008). Kitagawa Spreadsheet 19982000. http://www.citymatch.org/ppor_index.php. Accessed November 23, 2008.

  16. CityMatCH. (2008). PPOR phase 2 analysis guidelines for excess maternal health/prematurity deaths. http://www.citymatch.org/ppor_index.php. Accessed November 23, 2008.

  17. Biermann, J., Dunlop, A. L., Brady, C., et al. (2006). Promising practices in preconception care for women at risk for poor health and pregnancy outcomes. Maternal and Child Health Journal, 10(5 Suppl.), S21–S28.

    Article  PubMed  Google Scholar 

  18. Martin, J. A., & Hoyert, D. L. (2002). The national fetal death file. Seminars in Perinatology, 26(1), 3–11.

    Article  PubMed  Google Scholar 

  19. Gaudino, J. A., Jr., Blackmore-Prince, C., Yip, R., & Rochat, R. W. (1997). Quality assessment of fetal death records in Georgia: A method for improvement. American Journal of Public Health, 87(8), 1323–1327.

    Article  PubMed  Google Scholar 

  20. Practice Bulletin #102, “Management of Stillbirth,” is published in the March 2009 issue of Obstetrics & Gynecology. http://www.acog.org/from_home/publications/press_releases/nr02-20-09-2.cfm. Accessed December 16, 2009.

  21. Gardosi, J., Kady, S. M., McGeown, P., et al. (2005). Classification of stillbirth by relevant condition at death (ReCoDe): Population-based cohort study. BMJ, 331(7525), 1113–1117.

    Article  PubMed  Google Scholar 

  22. Vergani, P., Cozzolino, S., Pozzi, E., Cuttin, M. S., et al. (2008). Identifying the causes of stillbirth: A comparison of four classification systems. American Journal of Obstetrics and Gynecology, 199(3), 319.e1–319.e4.

    Article  Google Scholar 

  23. Varli, I. H., Petersson, K., Bottinga, R., et al. (2008). The Stockholm classification of stillbirth. Acta Obstetricia et Gynecologica Scandinavica, 87(11), 1202–1212.

    Article  PubMed  Google Scholar 

  24. Barfield, W. D., Tomashek, K. M., Flowers, L. M., & Iyasu, S. (2002). Contribution of late fetal deaths to US perinatal mortality rates, 1995–1998. Seminars in Perinatology, 26(1), 17–24.

    Article  PubMed  Google Scholar 

  25. Fretts, R. C. (2005). Etiology and prevention of stillbirth. American Journal of Obstetrics and Gynecology, 193(6), 1923–1935.

    Article  PubMed  Google Scholar 

  26. Goldenberg, R. L., Kirby, R., & Culhane, J. F. (2004). Stillbirth: A review. The Journal of Maternal-Fetal & Neonatal Medicine, 16(2), 79–94.

    CAS  Google Scholar 

  27. Nohr, E. A., Bech, B. H., Davies, M. J., et al. (2005). Prepregnancy obesity and fetal death: A study within the Danish National Birth Cohort. Obstetrics and Gynecology, 106(2), 250–259.

    PubMed  Google Scholar 

  28. National Center for Health Statistics. (2008). 2003 Revision of the US standard certificates of live births and deaths and fetal death reports. http://www.cdc.gov/nchs/vital_certs_rev.htm. Accessed November 23, 2008.

  29. Bode, M. M., O’Shea, T. M., Metzguer, K. R., & Stiles, A. D. (2001). Perinatal regionalization and neonatal mortality in North Carolina, 1968–1994. American Journal of Obstetrics and Gynecology, 184(6), 1302–1307.

    Article  CAS  PubMed  Google Scholar 

  30. Hein, H. A. (2004). Regionalized perinatal care in North America. Seminars in Neonatology, 9(2), 111–116.

    Article  PubMed  Google Scholar 

  31. National Center for Health Statistics. (1999). Vital statistics of the United States: Mortality, 1999 technical appendix. Hyattsville, MD: National Center for Health Statistics. http://www.cdc.gov/nchs/data/statab/techap99.pdf. Accessed November 23, 2008.

  32. Scott, C. L., Iyasu, S., Rowley, D., & Atrash, H. K. (1998). Postneonatal mortality surveillance—United States, 1980–1994. MMWR. Morbidity and Mortality Weekly Report, 47(SS-2), 29-30 (Appendix A).

    Google Scholar 

  33. CityMatCH. (2008). PPOR phase 2 analysis guidelines for excess infant health deaths. http://www.citymatch.org/ppor_index.php. Accessed November 23, 2008.

  34. Shapiro-Mendoza, C. K., Tomashek, K. M., Andersen, R. N., & Wingo, J. (2006). Recent national trends in sudden, unexpected infant deaths: More evidence supporting a change in classification or reporting. American Journal of Epidemiology, 163(8), 762–769.

    Article  PubMed  Google Scholar 

  35. Dollfus, C., Patetta, M., Siegel, E., & Cross, A. W. (1990). Infant mortality: A practical approach to the analysis of the leading causes of death and risk factors. Pediatrics, 86(2), 176–183.

    CAS  PubMed  Google Scholar 

  36. Pestronk, R. M., & Franks, M. L. (2003). A partnership to reduce African-American infant mortality in Genesee County, Michigan. Public Health Reports, 118, 324–335.

    PubMed  Google Scholar 

  37. Cottrell, B. H., & Shannahan, M. (2004). Maternal bacterial vaginosis and fetal/infant mortality in eight Florida counties, 1999–2000. Public Health Nursing, 21, 395–403.

    Article  PubMed  Google Scholar 

  38. Burns, P. G. (2005). Reducing infant mortality rates using the perinatal periods of risk model. Public Health Nursing, 22, 2–7.

    Article  PubMed  Google Scholar 

  39. Besculides, M., & Laraque, F. (2005). Racial and ethnic disparities in perinatal mortality: Applying the perinatal periods of risk model to identify areas of intervention. Journal of the National Medical Association, 97, 1128–1132.

    PubMed  Google Scholar 

  40. Cai, J., Hoff, G. L., Dew, P. C., et al. (2005). Perinatal periods of risk: An analysis of fetal-infant mortality rates in Kansas City, Missouri. Maternal and Child Health Journal, 9, 199–205.

    Article  PubMed  Google Scholar 

  41. Cai, J., Hoff, G. L., Archer, R., et al. (2007). Perinatal periods of risk analysis of infant mortality in Jackson County, Missouri. Journal of Public Health Management and Practice, 13, 270–277.

    PubMed  Google Scholar 

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Acknowledgments

Thanks to Dr. Brian McCarthy for developing and sharing his original methods and encouraging us to modify the approach for use in US cities. Thanks to the Perinatal Periods of Risk City Teams, Pat Simpson and Jennifer Skala for their help in developing and adapting the methods for use in urban communities. Special thanks to Dr. Milton Kotelchuck and Dr. Laurin Kasehagen for their advice in writing these articles for publication. This work was supported in part by the following Cooperative Agreements: Merging Research and Practice for Urban Child Health—TS-283-14/16 (under CDC Cooperative Agreement U50/CCU300860); Building Urban MCH Capacity—TS 0922 (under CDC Cooperative Agreement U50/CCU300860); Toward Greater Science Use in Urban Health Agencies—TS-1337 (under CDC Cooperative Agreement U50/CCU300860); and the Maternal, Infant, and Reproductive Health: Science-Based Capacity Building for Major Urban Public Health Agencies (5 U65 DP724969-05) between CityMatCH at the University of Nebraska Medical Center and the Centers for Disease Control and Prevention, National Center for Chronic Disease Prevention and Health Promotion, Division of Reproductive Health, with supplemental support from the National Center for Birth Defects and Developmental Disabilities, and the Health Resources and Services Administration, Maternal and Child Health Bureau. Additional support was provided by the National March of Dimes Birth Defects Foundation, and the University of Nebraska Medical Center, Department of Pediatrics.

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Correspondence to William M. Sappenfield.

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The findings and conclusions in this article are those of the authors and do not necessarily represent the official position of the Centers for Disease Control and Prevention.

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Sappenfield, W.M., Peck, M.G., Gilbert, C.S. et al. Perinatal Periods of Risk: Phase 2 Analytic Methods for Further Investigating Feto-Infant Mortality. Matern Child Health J 14, 851–863 (2010). https://doi.org/10.1007/s10995-010-0624-5

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  • DOI: https://doi.org/10.1007/s10995-010-0624-5

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