Annals of Oncology 13:51-56, 2002
© 2002 European Society for Medical Oncology
Debate |
Fecal occult blood test for colorectal cancer screening
Gastro-intestinal Oncology Unit, Department of Gastroenterology, Tel-Aviv Sourasky Medical Center and Sackler School of Medicine, Tel Aviv University, Tel-Aviv, Israel
Received 17 September 2001; accepted 10 October 2001.
Key words: colorectal cancer, fecal occult blood test, screening
Introduction
Colorectal cancer (CRC) is a major health concern and a leading cause of cancer death in the Western world. The estimated lifetime risk of CRC is 5% to 6%, the incidence rate increases sharply after the age of 50. Approximately 75% of new cases occur in individuals at average risk [1, 2]. Worldwide, it is estimated that there will be over one million new CRC cases in the year 2001 (personal communication), and the annual age-adjusted incidence rate is 57 per 100 000. Survival is directly related to the extent of disease at the time of diagnosis. Those diagnosed at an advanced stage have an estimated 5-year survival rate of 7%, in contrast with a survival rate of 92% for individuals detected at an early stage, since advanced CRC is largely refractory to conventional therapy and is one of the least curable malignancies [3]. Despite continuing
Rationale of the test
Sensitivity, specificity and positive predictive value
Cost-effectiveness of FOBT
Disadvantages
Stool testing merits further consideration
Discussion
Acknowledgements
Footnotes
References
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