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. 2011 Apr 26;5(4):e1140.
doi: 10.1371/journal.pntd.0001140.

Congenital cytomegalovirus mortality in the United States, 1990-2006

Benjamin N Bristow  1 , Kaitlin A O'Keefe, Shira C Shafir, Frank J Sorvillo
Affiliations

Congenital cytomegalovirus mortality in the United States, 1990-2006

Benjamin N Bristow et al. PLoS Negl Trop Dis. .

Abstract

Background: Congenital cytomegalovirus (CMV) infection is the most common intrauterine infection in the United States disproportionately affecting minority races and those of lower socio-economic class. Despite its importance there is little information on the burden of congenital CMV-related mortality in the US. To measure congenital CMV-associated mortality in the US and assess possible racial/ethnic disparities, we reviewed national death certificate data for a 17-year period.

Methods: Congenital CMV-associated deaths from 1990 through 2006 were identified from multiple-cause-coded death records and were combined with US census data to calculate mortality rates.

Results: A total of 777 congenital CMV-associated deaths occurred over the 17-year study period resulting in 56,355 years of age-adjusted years of potential life lost. 71.7% (557) of congenital CMV-associated deaths occurred in infants (age less than 1 year). Age-adjusted mortality rates stratified by race/ethnicity revealed mortality disparities. Age-adjusted rate ratios were calculated for each racial/ethnic group using whites as the reference. Native Americans and African Americans were 2.34 (95% CI, 2.11-2.59) and 1.89 (95% CI, 1.70-2.11) times respectively, more likely to die from congenital CMV than whites. Asians and Hispanics were 0.54 (95% CI, 0.44-0.66) and 0.96 (95% CI, 0.83-1.10) times respectively, less likely to die from congenital CMV than whites.

Conclusions/significance: Congenital CMV infection causes appreciable mortality in the US exacting a particular burden among African Americans and Native Americans. Enhanced surveillance and increased screening are necessary to better understand the epidemiology of congenital CMV infection in addition to acceleration of vaccine development efforts.

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Conflict of interest statement

The authors have declared that no competing interests exist.

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