title: Analysis of the efficacy of screening tests in colorectal cancer by faecal occult blood test--own experience.
abstract: Screening of the colon cancer seems to be important to improve the results of the surgical treatment. There are different screening programs, the most common use the fecal occult blood (FOB) tests or colonoscopy.
  
  
  OBJECTIVE
  was to evaluate the results of the colon cancer screening based on the FOB test and perform the algorhytm improving the effectiveness of the screening.
  
  
  METHODS
  941 patients with the positive results of the FOB (immunochromatographic method) test were investigated. In all cases the rectosigmoidoscopy for the detection of the lower GI tract pathology was done. 312 patients were qualified to colonoscopy.
  
  
  RESULTS
  Adenomatous polyps and adenocarcinomas were detected in 116 patients. There was no correlation between clinical symptoms and the colorectal cancer. The colorectal cancer was recognized statistically more common at the patients with previous detected neoplasia, in the colon and other organs, with hereditary nonpolyposis colorectal cancer and with inflammatory bowel diseases.
  
  
  CONCLUSIONS
  The colorectal cancer screening based on the FOB can be effective in the early recognition of the bowel malignancy. The previous questionnaire can eliminate from the FOB screening the patients without indications (previously done colonoscopy or barium enema) or with directly indications for colonoscopy.
authors.affiliation: Department of General and Colorectal Surgery, Medical University in Poznań.
authors.forename: Tomasz
authors.initials: T
authors.lastname: Kozłowski
authors.forename: Dariusz
authors.initials: D
authors.lastname: Godlewski
authors.forename: Maciej
authors.initials: M
authors.lastname: Biczysko
authors.forename: Marcin
authors.initials: M
authors.lastname: Grochowalski
authors.forename: Marcin
authors.initials: M
authors.lastname: Nelke
authors.forename: Jacek
authors.initials: J
authors.lastname: Paszkowski
authors.forename: Maciej
authors.initials: M
authors.lastname: Borejsza-Wysocki
authors.forename: Lukasz
authors.initials: L
authors.lastname: Krokowicz
authors.forename: Piotr
authors.initials: P
authors.lastname: Krokowicz
authors.forename: Tomasz
authors.initials: T
authors.lastname: Banasiewicz
authors.forename: Michał
authors.initials: M
authors.lastname: Drews
mesh_terms: D000230:Adenocarcinoma / Q000175:diagnosis* / Q000453:epidemiology / Q000517:prevention & control*; D018256:Adenomatous Polyps / Q000175:diagnosis / Q000453:epidemiology; D017677:Age Distribution; D000368:Aged; D000369:Aged, 80 and over; D000465:Algorithms; D002423:Cause of Death; D003108:Colonic Diseases / Q000175:diagnosis / Q000453:epidemiology; D003113:Colonoscopy / Q000706:statistics & numerical data; D015179:Colorectal Neoplasms / Q000175:diagnosis* / Q000453:epidemiology / Q000517:prevention & control*; D003937:Diagnosis, Differential; D004240:Diverticulum / Q000175:diagnosis / Q000453:epidemiology; D005243:Feces / Q000737:chemistry; D005260:Female; D006801:Humans; D015994:Incidence; D008297:Male; D008403:Mass Screening / Q000379:methods*; D008875:Middle Aged; D009780:Occult Blood; D011044:Poland / Q000453:epidemiology; D015995:Prevalence; D012680:Sensitivity and Specificity; D017678:Sex Distribution; D012812:Sigmoidoscopy / Q000706:statistics & numerical data