title: [The trend of cancer mortality from 1988 to 2005 in Kaifeng county, China].
abstract: OBJECTIVE
  To investigate the time trends of cancer mortality among residents in Kaifeng county, Henan province.
  
  
  METHODS
  Data on cancer mortality from the vital registration system in Kaifeng county from 1988 to 2005 was analyzed. A total of 9543 death records (5974 males and 3567 females) due to malignant tumors were studied. A two-year-period age-specified standardized mortality rates were directly adjusted by the world standard population, and the annual percentage change (APC) of mortality were estimated by a linear logarithm regression.
  
  
  RESULTS
  The crude cancer death rate for male was 95.09/100,000 and its age-standardized death rate was 117.41/100,000. While, the crude cancer death rate for female was 59.13/100,000 and the age-standardized death rate was 57.15/100,000. There was a significant growth tread for lung cancer (APC: 6.54%), liver cancer (5.07%) in males and breast cancer (7.04%) in females in the groups aged over 18. On the contrary, the decreasing treads for esophageal cancer in both of sexes (-7.09%, -13.53%) were also observed in this study. Meanwhile, there was no other significant changes in the trend, either in the tumor sites or mortality, was observed.
  
  
  CONCLUSIONS
  In the past two decades, there has been a significant increasing trend for cancer mortality in Kaifeng county, of Henan Province. Hence, it is necessary to enhance epidemiological survey to identify risk factors at the earlier stages.
authors.affiliation: Henan Tumor Institute, Zhengzhou 450008, China.
authors.forename: Ya-Ling
authors.initials: YL
authors.lastname: Cui
authors.forename: Li
authors.initials: L
authors.lastname: Fu
authors.forename: Zhen-Xin
authors.initials: ZX
authors.lastname: Geng
authors.forename: Hai-Bing
authors.initials: HB
authors.lastname: Li
authors.forename: Shi
authors.initials: S
authors.lastname: Ma
authors.forename: Quan-Jun
authors.initials: QJ
authors.lastname: Lü
authors.forename: Wei-Quan
authors.initials: WQ
authors.lastname: Lu
authors.forename: Wen-Xian
authors.initials: WX
authors.lastname: Yang
mesh_terms: D002681:China / Q000453:epidemiology; D003644:Death Certificates; D005260:Female; D006801:Humans; D008297:Male; D009026:Mortality / Q000639:trends; D009369:Neoplasms / Q000401:mortality*; D012424:Rural Population