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Table 1 Presenting symptoms and signs for 194 patients with colorectal cancer

From: The diagnosis of colorectal cancer in patients with symptoms: finding a needle in a haystack

Symptom Percentage of patients
Fecal occult blood test positive 77
Rectal bleeding 58
Anemia* 57
Abdominal pain 52
Weight loss 39
Anorexia 27
Constipation 27
Altered stools 25
Fatigue 25
Diarrhea 22
Nausea and vomiting 22
Tenesmus 8
Mucus in stools 6
Rectal pain 5
Obstruction 4
  1. Adapted from Majumdar et al. [1].
  2. *Anemia = a hemoglobin of < 13.4 g/dl in men or < 12.3 g/dl in women.