Relationships between a sign of rectal bleeding and the results of an immunochemical occult blood test, and colorectal cancer
A cross-sectional study based on medical check-up was carried out to investigate the association between signs of rectal bleeding and colorectal cancer, and the results of an immunochemical faecal occult blood test. The 9625 patients received both an immunochemical faecal occult blood test using a t...
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| Veröffentlicht in: | European journal of cancer prevention 2000-10, Vol.9 (5), p.325-328 |
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| creator | Nakama, H Zhang, B Fattah, A S M Abdul Kamijo, N Fukazawa, K |
| description | A cross-sectional study based on medical check-up was carried out to investigate the association between signs of rectal bleeding and colorectal cancer, and the results of an immunochemical faecal occult blood test. The 9625 patients received both an immunochemical faecal occult blood test using a two-consecutive-day method and colonoscopy. They were then divided into two groups, according to the results of a self-completed questionnaire on the signs of rectal bleeding. The positivity rate of the immunochemical faecal occult blood test as well as the positive predictive value for colorectal cancer were determined in these two groups. The faecal occult blood test was positive in 9.3% of patients with rectal bleeding and in 4.4% of patients without rectal bleeding, and the positive predictive value for colorectal cancer was 0.79 and 0.27 in patients with and without rectal bleeding, respectively. This indicates a significant difference in the positivity rate (P < 0.001) as well as the positive predictive value (P < 0.05) between these two groups. The results suggest that there are positive associations between the signs of rectal bleeding and the results of immunochemical faecal occult blood test, and between the patients presenting with rectal bleeding and colorectal cancer. |
| doi_str_mv | 10.1097/00008469-200010000-00006 |
| format | Article |
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The 9625 patients received both an immunochemical faecal occult blood test using a two-consecutive-day method and colonoscopy. They were then divided into two groups, according to the results of a self-completed questionnaire on the signs of rectal bleeding. The positivity rate of the immunochemical faecal occult blood test as well as the positive predictive value for colorectal cancer were determined in these two groups. The faecal occult blood test was positive in 9.3% of patients with rectal bleeding and in 4.4% of patients without rectal bleeding, and the positive predictive value for colorectal cancer was 0.79 and 0.27 in patients with and without rectal bleeding, respectively. This indicates a significant difference in the positivity rate (P < 0.001) as well as the positive predictive value (P < 0.05) between these two groups. The results suggest that there are positive associations between the signs of rectal bleeding and the results of immunochemical faecal occult blood test, and between the patients presenting with rectal bleeding and colorectal cancer.</description><identifier>ISSN: 0959-8278</identifier><identifier>EISSN: 1473-5709</identifier><identifier>DOI: 10.1097/00008469-200010000-00006</identifier><identifier>PMID: 11075885</identifier><language>eng</language><publisher>Hagerstown, MD: Lippincott Williams & Wilkins</publisher><subject>Adult ; Biological and medical sciences ; Colorectal Neoplasms - diagnosis ; Cross-Sectional Studies ; Female ; Gastrointestinal Hemorrhage - diagnosis ; Humans ; Immunochemistry ; Investigative techniques, diagnostic techniques (general aspects) ; Male ; Medical sciences ; Middle Aged ; Miscellaneous. Technology ; Occult Blood ; Pathology. Cytology. Biochemistry. Spectrometry. 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The 9625 patients received both an immunochemical faecal occult blood test using a two-consecutive-day method and colonoscopy. They were then divided into two groups, according to the results of a self-completed questionnaire on the signs of rectal bleeding. The positivity rate of the immunochemical faecal occult blood test as well as the positive predictive value for colorectal cancer were determined in these two groups. The faecal occult blood test was positive in 9.3% of patients with rectal bleeding and in 4.4% of patients without rectal bleeding, and the positive predictive value for colorectal cancer was 0.79 and 0.27 in patients with and without rectal bleeding, respectively. This indicates a significant difference in the positivity rate (P < 0.001) as well as the positive predictive value (P < 0.05) between these two groups. The results suggest that there are positive associations between the signs of rectal bleeding and the results of immunochemical faecal occult blood test, and between the patients presenting with rectal bleeding and colorectal cancer.</description><subject>Adult</subject><subject>Biological and medical sciences</subject><subject>Colorectal Neoplasms - diagnosis</subject><subject>Cross-Sectional Studies</subject><subject>Female</subject><subject>Gastrointestinal Hemorrhage - diagnosis</subject><subject>Humans</subject><subject>Immunochemistry</subject><subject>Investigative techniques, diagnostic techniques (general aspects)</subject><subject>Male</subject><subject>Medical sciences</subject><subject>Middle Aged</subject><subject>Miscellaneous. Technology</subject><subject>Occult Blood</subject><subject>Pathology. Cytology. Biochemistry. Spectrometry. 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The 9625 patients received both an immunochemical faecal occult blood test using a two-consecutive-day method and colonoscopy. They were then divided into two groups, according to the results of a self-completed questionnaire on the signs of rectal bleeding. The positivity rate of the immunochemical faecal occult blood test as well as the positive predictive value for colorectal cancer were determined in these two groups. The faecal occult blood test was positive in 9.3% of patients with rectal bleeding and in 4.4% of patients without rectal bleeding, and the positive predictive value for colorectal cancer was 0.79 and 0.27 in patients with and without rectal bleeding, respectively. This indicates a significant difference in the positivity rate (P < 0.001) as well as the positive predictive value (P < 0.05) between these two groups. 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| subjects | Adult Biological and medical sciences Colorectal Neoplasms - diagnosis Cross-Sectional Studies Female Gastrointestinal Hemorrhage - diagnosis Humans Immunochemistry Investigative techniques, diagnostic techniques (general aspects) Male Medical sciences Middle Aged Miscellaneous. Technology Occult Blood Pathology. Cytology. Biochemistry. Spectrometry. Miscellaneous investigative techniques Research papers Surveys and Questionnaires |
| title | Relationships between a sign of rectal bleeding and the results of an immunochemical occult blood test, and colorectal cancer |
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