title: [Survival analysis of gastric cancer patients during 2005-2010 in Zhejiang Province, China].
abstract: OBJECTIVE
  To conduct a survival analysis of gastric cancer patients according to the data of population-based cancer registry during 2005-2010 in Zhejiang Province in order to provide information for prognosis assessment and control of this disease.
  
  
  METHODS
  The deadline of the last follow-up of 26, 536 patients was December 31st, 2012. Cumulative observed survival rate (OSR) and expected survival rate were calculated by life table and Hakulinen method.
  
  
  RESULTS
  the 1-, 3-, and 5-year OSR were 58.51%, 39.07%, and 33.08%, and the 1-, 3-, and 5-year relative survival rates (RSR) were 60.24%, 42.90%, and 39.03%, respectively. The 1-, 3-, and 5-year relative survival rates of males vs. females were 60.49% vs. 59.65%, 42.88% vs. 42.96%, and 38.76% vs. 39.64%, respectively, statistically with non-significant differences (χ(2) = 0.13, P > 0.05) between them. The 5-year OSR and RSR of urban patients were 39.15% and 46.30%, and the 5-year OSR and RSR of rural patients were 30.81% and 36.32%, with statistically significant differences between them (P < 0.05). The 15-44 age group had a better relative survival rate.
  
  
  CONCLUSIONS
  The survival rate of gastric cancer patients in Zhejiang Province is low. Work of cancer prevention and control should be strengthened. The wide variation in gastric cancer survival rates between urban and rural patients indicates that priority should be given to rural areas in allocating medical and public health resources.
authors.affiliation: Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051 China.
authors.forename: Weiwei
authors.initials: W
authors.lastname: Gong
authors.forename: Shenglan
authors.initials: S
authors.lastname: Luo
authors.forename: Ruying
authors.initials: R
authors.lastname: Hu
authors.forename: Hao
authors.initials: H
authors.lastname: Wang
authors.forename: Jin
authors.initials: J
authors.lastname: Pan
authors.forename: Fangrong
authors.initials: F
authors.lastname: Fei
authors.forename: Haibin
authors.initials: H
authors.lastname: Wu
authors.affiliation: Email: myu@cdc.zj.cn.
authors.forename: Min
authors.initials: M
authors.lastname: Yu
mesh_terms: D002681:China / Q000453:epidemiology; D005260:Female; D006801:Humans; D008297:Male; D011379:Prognosis; D012424:Rural Population; D013274:Stomach Neoplasms / Q000453:epidemiology*; D016019:Survival Analysis; D015996:Survival Rate