title: Long-term trends in cancer mortality in the United States, 1930-1998.
abstract: BACKGROUND
  Progress against cancer can be examined by analyzing long-term trends in cancer incidence and mortality. The recent directive from the U.S. Department of Health and Human Services to adopt the 2000 U.S. standard population for the age adjustment of death rates prompted the American Cancer Society to update historical cancer mortality statistics using the new standard.
  
  
  METHODS
  Mortality data were abstracted by race, gender, year, and age at death for 1930 through 1959 from annual volumes of Vital Statistics of the United States. For 1960 through 1998, these data were obtained from data tapes provided by the National Center for Health Statistics. Two U.S. standard million populations (1970 and 2000) were used to calculate age-adjusted rates. Average annual percent change was estimated for each decade by site, gender, and age, and the statistical significance of the change was assessed at p < 0.05.
  
  
  RESULTS
  After long-term increases or mostly level trends that date from the 1930s for some sites, death rates for cancers of the lung (in males), prostate, female breast, colon-rectum, pancreas, leukemia, and ovary were decreasing in the 1990s. Liver cancer death rates were increasing in the 1990s. Throughout the study period, death rates for female lung cancer increased, while death rates for stomach and uterine cancers declined.
  
  
  CONCLUSIONS
  The trends of decreasing cancer death rates for the leading cancer sites in the 1990s are encouraging. However, surveillance researchers must continue to monitor these declines to assess whether the progress seen in this decade persists. Efforts also must be made to study the sites with increasing trends and identify potential underlying causes.
authors.affiliation: Department of Epidemiology and Surveillance Research, American Cancer Society, National Home Office, Atlanta, Georgia, USA. paw1@cdc.gov
authors.forename: Phyllis A
authors.initials: PA
authors.lastname: Wingo
authors.forename: Cheryll J
authors.initials: CJ
authors.lastname: Cardinez
authors.forename: Sarah H
authors.initials: SH
authors.lastname: Landis
authors.forename: Robert T
authors.initials: RT
authors.lastname: Greenlee
authors.forename: Lynn A G
authors.initials: LA
authors.lastname: Ries
authors.forename: Robert N
authors.initials: RN
authors.lastname: Anderson
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Thun
mesh_terms: D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D015994:Incidence; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D009026:Mortality / Q000639:trends; D009309:National Center for Health Statistics, U.S.; D009369:Neoplasms / Q000401:mortality*; D012307:Risk Factors; D017678:Sex Distribution; D014481:United States / Q000453:epidemiology