title: Trends in testicular germ cell tumors among U.S. military servicemen, 1990-2003.
abstract: OBJECTIVE
  To determine the incidence of testicular germ cell tumors among active duty males and compare it with the incidence in the general U.S. population.
  
  
  METHODS
  The Automated Cancer Tumor Registry and the Surveillance, Epidemiology, and End Results Program data from 1990 to 2003 were analyzed for men aged between 20 and 59 years by histology and stage at diagnosis. Rates were age adjusted using the male active duty military population as the standard.
  
  
  RESULTS
  Nonseminoma incidence was significantly lower in the military than in the general population (incidence rate ratio = 0.90, 95% confidence interval = 0.82-0.98). Trends in incidence tended to be similar in both the populations. Increases were observed for both histologic types but were only significant for seminoma (Automated Cancer Tumor Registry: 21% and Surveillance, Epidemiology, and End Results program: 16%; p < 0.05). Increases in incidence were only observed for localized tumors of both histologic types.
  
  
  CONCLUSIONS
  The lower incidence of nonseminoma in the military and the increased incidence of localized tumors in both populations remain unexplained.
authors: United States Military Cancer Institute, Walter Reed Army Medical Center, 6900 Georgia Avenue NW, Building 1, Suite A109, Washington, DC 20307, USA.
authors: Lindsey
authors: L
authors: Enewold
authors: Jing
authors: J
authors: Zhou
authors: Susan S
authors: SS
authors: Devesa
authors: Ralph L
authors: RL
authors: Erickson
authors: Kangmin
authors: K
authors: Zhu
authors: Katherine A
authors: KA
authors: McGlynn
mesh_terms: D000328:Adult; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D008889:Military Personnel; D009373:Neoplasms, Germ Cell and Embryonal / Q000453:epidemiology*; D012042:Registries; D018426:SEER Program; D013736:Testicular Neoplasms / Q000453:epidemiology*; D014481:United States / Q000453:epidemiology