Table of Contents Author Guidelines Submit a Manuscript
Computational and Mathematical Methods in Medicine
Volume 2012 (2012), Article ID 914196, 8 pages
http://dx.doi.org/10.1155/2012/914196
Research Article

Risk Factors for Mortality among 2009 A/H1N1 Influenza Hospitalizations in Maricopa County, Arizona, April 2009 to March 2010

1School of Human Evolution and Social Change, Arizona State University, Tempe, AZ 85287, USA
2Division of Epidemiology and Population Studies, Fogarty International Center, National Institutes of Health, Bethesda, MD 20892, USA
3Office of Epidemiology, Maricopa County Department of Public Health, Phoenix, AZ 85012, USA

Received 14 April 2012; Accepted 28 May 2012

Academic Editor: Hiroshi Nishiura

Copyright © 2012 G. Chowell et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Linked References

  1. G. Chowell, S. M. Bertozzi, M. A. Colchero et al., “Severe respiratory disease concurrent with the circulation of H1N1 influenza,” New England Journal of Medicine, vol. 361, no. 7, pp. 674–679, 2009. View at Publisher · View at Google Scholar · View at Scopus
  2. C. Viboud, M. Miller, D. Olson, M. Osterholm, and L. Simonsen, “Preliminary Estimates of Mortality and Years of Life Lost Associated with the 2009 A/H1N1 Pandemic in the US and Comparison with Past Influenza Seasons,” PLoS Currents, RRN1153, 2010.
  3. United States Census, Population Estimates Division. 2000–2010 Intercensal Population Estimates.
  4. J. K. Louie, M. Acosta, K. Winter et al., “Factors associated with death or hospitalization due to pandemic 2009 influenza A(H1N1) infection in California,” Journal of the American Medical Association, vol. 302, no. 17, pp. 1896–1902, 2009. View at Publisher · View at Google Scholar · View at Scopus
  5. G. Domínguez-Cherit, S. E. Lapinsky, A. E. Macias et al., “Critically ill patients with 2009 influenza A(H1N1) in Mexico,” Journal of the American Medical Association, vol. 302, no. 17, pp. 1880–1887, 2009. View at Publisher · View at Google Scholar · View at Scopus
  6. S. A. R. Webb, V. Pettilä, I. Seppelt et al., “Critical care services and 2009 H1N1 influenza in Australia and New Zealand,” New England Journal of Medicine, vol. 361, no. 20, pp. 1925–1934, 2009. View at Publisher · View at Google Scholar · View at Scopus
  7. S. Jain, L. Kamimoto, A. M. Bramley et al., “Hospitalized patients with 2009 H1N1 influenza in the United States, April-June 2009,” New England Journal of Medicine, vol. 361, no. 20, pp. 1935–1944, 2009. View at Publisher · View at Google Scholar · View at Scopus
  8. M. D. van Kerkhove, K. A. H. Vandemaele, V. Shinde et al., “Risk factors for severe outcomes following 2009 influenza a (H1N1) infection: a global pooled analysis,” PLoS Medicine, vol. 8, no. 7, Article ID e1001053, 2011. View at Publisher · View at Google Scholar · View at Scopus
  9. S. A. Truelove, A. S. Chitnis, R. T. Heffernan, A. E. Karon, T. E. Haupt, and J. P. Davis, “Comparison of patients hospitalized with pandemic 2009 influenza A (H1N1) virus infection during the first two pandemic waves in Wisconsin,” Journal of Infectious Diseases, vol. 203, no. 6, pp. 828–837, 2011. View at Publisher · View at Google Scholar · View at Scopus
  10. G. La Ruche, A. Tarantola, P. Barboza, L. Vaillant, J. Gueguen, and M. Gastellu-Etchegorry, “The 2009 pandemic H1N1 influenza and indigenous populations of the Americas and the Pacific,” Euro Surveillance, vol. 14, no. 42, 2009. View at Google Scholar · View at Scopus
  11. A. M. Presanis, R. G. Pebody, B. J. Paterson, B. D. Tom, and P. J. Birrell, “Changes in severity of 2009 pandemic A/H1N1 influenza in England: a Bayesian evidence synthesis,” BMJ, vol. 343, Article ID d5408, 2011. View at Publisher · View at Google Scholar
  12. S. Doshi, L. Kamimoto, L. Finelli, A. Perez, and A. Reingold, “Description of antiviral treatment among adults hospitalized with influenza before and during the 2009 pandemic: United States, 2005–2009,” Journal of Infectious Diseases, vol. 204, no. 12, pp. 1848–1856, 2011. View at Publisher · View at Google Scholar
  13. J. E. Hernandez, J. Graingera, L. Simonsen, P. Collisa, L. Edelmanc, and W. P. Sheridan, “Impact of the 2009/2010 influenza A (H1N1) pandemic on trends in influenza hospitalization, diagnostic testing, and treatment,” Influenza and Other Respiratory Viruses. In press. View at Publisher · View at Google Scholar
  14. “Deaths related to 2009 pandemic influenza A, (H1N1) among American Indian/Alaska Natives-12 states,” MMWR Morbidity and Mortality Weekly Report, vol. 58, pp. 1341–1344, 2009.
  15. D. L. Thompson, J. Jungk, E. Hancock, C. Smelser, and M. Landen, “Risk factors for 2009 pandemic influenza A, (H1N1)-related hospitalization and death among racial/ethnic groups in New Mexico,” American Journal of Public Health, vol. 101, no. 9, pp. 1776–1784.
  16. G. Chowell, S. Echevarría-Zuno, C. Viboud, L. Simonsen, and M. A. Miller, “Epidemiological characteristics and underlying risk factors for mortality during the autumn 2009 pandemic wave in Mexico,” PLoS One. In press.
  17. P. Santa-Olalla Peralta, M. Cortes Garcia, A. Limia Sanchez, J. Andres Prado, and I. Pachon Del Amo, “Critically ill patients with 2009 pandemic influenza A, (H1N1) infection in Spain: factors associated with death, April 2009-January 2010,” Revista Española de Salud Pública, vol. 84, no. 5, pp. 547–567, 2010. View at Google Scholar
  18. R. Gilca, G. de Serres, N. Boulianne et al., “Risk factors for hospitalization and severe outcomes of 2009 pandemic H1N1 influenza in Quebec, Canada,” Influenza and other Respiratory Viruses, vol. 5, no. 4, pp. 247–255, 2011. View at Publisher · View at Google Scholar · View at Scopus
  19. A. G. Randolph, F. Vaughn, R. Sullivan, L. Rubinson, and B. T. Thompson, “Critically ill children during the 2009-2010 influenza pandemic in the United States,” Pediatrics, vol. 128, no. 6, pp. e1450–e1458, 2011. View at Publisher · View at Google Scholar
  20. K. Wada, H. Nishiura, and A. Kawana, “An epidemiological analysis of severe cases of the influenza A (H1N1) 2009 virus infection in Japan,” Influenza and other Respiratory Viruses, vol. 4, no. 4, pp. 179–186, 2010. View at Publisher · View at Google Scholar · View at Scopus
  21. R. T. C. Yokota, L. M. Skalinski, C. N. Igansi et al., “Risk factors for death from pandemic (H1N1) 2009, southern Brazil,” Emerging Infectious Diseases, vol. 17, no. 8, pp. 1467–1471, 2011. View at Publisher · View at Google Scholar · View at Scopus
  22. J. C. Kwong, M. A. Campitelli, and L. C. Rosella, “Obesity and respiratory hospitalizations during influenza seasons in ontario, Canada: a cohort study,” Clinical Infectious Diseases, vol. 53, no. 5, pp. 413–421, 2011. View at Publisher · View at Google Scholar
  23. O. W. Morgan, A. Bramley, A. Fowlkes et al., “Morbid obesity as a risk factor for hospitalization and death due to 2009 pandemic influenza A(H1N1) disease,” PloS one, vol. 5, no. 3, p. e9694, 2010. View at Google Scholar · View at Scopus
  24. J. K. Louie, M. Acosta, M. C. Samuel et al., “A novel risk factor for a novel virus: obesity and 2009 pandemic influenza a (H1N1),” Clinical Infectious Diseases, vol. 52, no. 3, pp. 301–312, 2011. View at Publisher · View at Google Scholar · View at Scopus
  25. K. A. Ward, P. J. Spokes, and J. M. Mcanulty, “Case-control study of risk factors for hospitalization caused by pandemic (H1N1) 2009,” Emerging Infectious Diseases, vol. 17, no. 8, pp. 1409–1416, 2011. View at Publisher · View at Google Scholar · View at Scopus
  26. D. J. Muscatello, M. Barr, S. V. Thackway, and C. Raina Macintyre, “Epidemiology of influenza-like illness during pandemic (H1N1) 2009, New South Wales, Australia,” Emerging Infectious Diseases, vol. 17, no. 7, pp. 1240–1247, 2011. View at Publisher · View at Google Scholar · View at Scopus
  27. J. S. Nguyen-Van-Tam, P. J. M. Openshaw, A. Hashim et al., “Risk factors for hospitalisation and poor outcome with pandemic A/H1N1 influenza: United Kingdom first wave (May-September 2009),” Thorax, vol. 65, no. 7, pp. 645–651, 2010. View at Publisher · View at Google Scholar · View at Scopus
  28. T. Uyeki, “Antiviral treatment for patients hospitalized with 2009 pandemic influenza A (H1N1),” New England Journal of Medicine, vol. 361, no. 23, Article ID e110, 2009. View at Publisher · View at Google Scholar · View at Scopus
  29. Centers for Disease Control and Prevention, “Updated interim recommendations for the use of antiviral medications in the treatment and prevention of influenza for the 2009-2010 season,” http://www.cdc.gov/h1n1flu/recommendations.htm, 2010.
  30. R. Gilca, G. de Serres, N. Boulianne et al., “Risk factors for hospitalization and severe outcomes of 2009 pandemic H1N1 influenza in Quebec, Canada,” Influenza and other Respiratory Viruses, vol. 5, no. 4, pp. 247–255, 2011. View at Publisher · View at Google Scholar · View at Scopus
  31. A. L. H. Iglesias, K. Kudo, T. Manabe, A. E. C. Berdugo, and A. C. Baeza, “Reducing occurrence and severity of pneumonia due to pandemic H1N1 2009 by early oseltamivir administration: a retrospective study in Mexico,” PLoS One, vol. 6, no. 7, Article ID e21838, 2011. View at Google Scholar
  32. W. Hanshaoworakul, J. M. Simmerman, U. Narueponjirakul et al., “Severe human influenza infections in Thailand: oseltamivir treatment and risk factors for fatal outcome,” PLoS ONE, vol. 4, no. 6, Article ID e6051, 2009. View at Publisher · View at Google Scholar · View at Scopus
  33. N. Lee, K. W. Choi, P. K. S. Chan et al., “Outcomes of adults hospitalised with severe influenza,” Thorax, vol. 65, no. 6, pp. 510–515, 2010. View at Publisher · View at Google Scholar · View at Scopus
  34. A. McGeer, K. A. Green, A. Plevneshi et al., “Antiviral therapy and outcomes of influenza requiring hospitalization in Ontario, Canada,” Clinical Infectious Diseases, vol. 45, no. 12, pp. 1568–1575, 2007. View at Publisher · View at Google Scholar · View at Scopus
  35. A. Kumar, “Early versus late oseltamivir treatment in severely ill patients with 2009 pandemic influenza A (H1N1): speed is life,” Journal of Antimicrobial Chemotherapy, vol. 66, no. 5, Article ID dkr090, pp. 959–963, 2011. View at Publisher · View at Google Scholar · View at Scopus
  36. G. Chowell, C. Viboud, L. Simonsen, M. Miller, and S. Echevarría-Zuno, “Impact of antiviral treatment and hospital admission delay on the risk of death of 2009 A/H1N1 pandemic influenza in Mexico, April-December 2009,” BMC Infectious Diseases, vol. 12, p. 97, 2011. View at Publisher · View at Google Scholar