title: Laboratory testing for cytomegalovirus among pregnant women in the United States: a retrospective study using administrative claims data.
abstract: BACKGROUND
  Routine cytomegalovirus (CMV) screening during pregnancy is not recommended in the United States and the extent to which it is performed is unknown. Using a medical claims database, we computed rates of CMV-specific testing among pregnant women.
  
  
  METHODS
  We used medical claims from the 2009 Truven Health MarketScan® Commercial databases. We computed CMV-specific testing rates using CPT codes.
  
  
  RESULTS
  We identified 77,773 pregnant women, of whom 1,668 (2%) had a claim for CMV-specific testing. CMV-specific testing was significantly associated with older age, Northeast or urban residence, and a diagnostic code for mononucleosis. We identified 44 women with a diagnostic code for mononucleosis, of whom 14% had CMV-specific testing.
  
  
  CONCLUSIONS
  Few pregnant women had CMV-specific testing, suggesting that screening for CMV infection during pregnancy is not commonly performed. In the absence of national surveillance for CMV infections during pregnancy, healthcare claims are a potential source for monitoring practices of CMV-specific testing.
authors.affiliation: National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, 1600 Clifton Rd NE, Atlanta, GA 30333, USA. JLeung@cdc.gov
authors.forename: Jessica
authors.initials: J
authors.lastname: Leung
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Cannon
authors.forename: Scott D
authors.initials: SD
authors.lastname: Grosse
authors.forename: Stephanie R
authors.initials: SR
authors.lastname: Bialek
mesh_terms: D000293:Adolescent; D000328:Adult; D003587:Cytomegalovirus / Q000472:pathogenicity*; D003586:Cytomegalovirus Infections / Q000175:diagnosis*; D005260:Female; D006801:Humans; D011247:Pregnancy; D011251:Pregnancy Complications, Infectious / Q000175:diagnosis; D012189:Retrospective Studies; D014481:United States; D055815:Young Adult