title: Colorectal cancer screening for the natural population of Beijing with sequential fecal occult blood test: a multicenter study.
abstract: OBJECTIVE
  To assess the prevalence of colorectal cancer (CRC) in Beijing and the reliability of the sequential fecal occult blood test (SFOBT) for CRC screening.
  
  
  METHODS
  Of the natural population (48 100 persons) in several Beijing communities, we screened 26 827 persons with age over 30 using the SFOBT screening program, Guaiacum Fecal Occult Blood Test (GFOBT), Immuno Fecal Occult Blood Test (IFOBT), and colonoscopies.
  
  
  RESULTS
  The screening rate of the population was 74%. The positive rate of SFOBT was 5.6%. The prevalence of CRC in the entire population of Beijing was therefore calculated to be 36.57/10(5). Of 12 CRC detected patients, 4 cases were in stage Dukes A (33.33%), 7 cases in stage Dukes B (58.33%), only 1 case (8.34%) in stage Dukes C.
  
  
  CONCLUSIONS
  The prevalence of CRC in Beijing is one of the highest in China. Individuals at high risk for CRC or those over 50 years of age should be considered as primary candidates for screening. SFOBT screening is a cost-effective and reliable method for early detection of CRC.
authors.affiliation: Department of Gastroenterology, General Hospital of Beijing Military Region, Beijing 100700, China. Lishirong2000@yahoo.com.cn
authors.forename: Shirong
authors.initials: S
authors.lastname: Li
authors.forename: Zhaohua
authors.initials: Z
authors.lastname: Nie
authors.forename: Nan
authors.initials: N
authors.lastname: Li
authors.forename: Junxiang
authors.initials: J
authors.lastname: Li
authors.forename: Ping
authors.initials: P
authors.lastname: Zhang
authors.forename: Zhaoxu
authors.initials: Z
authors.lastname: Yang
authors.forename: Shankun
authors.initials: S
authors.lastname: Mu
authors.forename: Yaping
authors.initials: Y
authors.lastname: Du
authors.forename: Jichun
authors.initials: J
authors.lastname: Hu
authors.forename: Shenyuan
authors.initials: S
authors.lastname: Yuan
authors.forename: Hanting
authors.initials: H
authors.lastname: Qu
authors.forename: Taichang
authors.initials: T
authors.lastname: Zhang
authors.forename: Shixin
authors.initials: S
authors.lastname: Wang
authors.forename: Enyu
authors.initials: E
authors.lastname: Dong
authors.forename: Defang
authors.initials: D
authors.lastname: Qi
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002681:China; D015179:Colorectal Neoplasms / Q000175:diagnosis*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009780:Occult Blood