Of patients diagnosed with colon cancer, what percentage present with symptoms, such as bleeding as well as low hemoglobin and positive fecal occult blood?

Bottom line: Rectal bleeding and abdominal pain are common (more than 40% of patients studied) symptoms; weight loss, diarrhea, constipation, and/or weight loss can be present in 25% of patients.  Hemoglobin < 12 g/dl can occur in about 25% of patients, while positive fecal occult blood test result is less common.

Summary:  Hamilton W, et al. Clinical features of colorectal cancer before diagnosis: a population-based case-control study. Br J Cancer. 2005 Aug 22;93(4):399-405.

Population-based case-control study of patients (n=379) age 40+ diagnosed with primary colorectal cancer 1998-2002 in a community.  Each case matched to 5 controls.  Reviewed records for symptoms and test results during 2 years prior to diagnosis.  RESULTS:Table 2 summarizes rates of various symptoms and test results for the cases and the controls.

Advertisements

About Amy

Clinical Informationist at EUH Branch Library
This entry was posted in Diagnosis, EUH and tagged , . Bookmark the permalink.