Blood Loss in Colorectal Cancer
Author Information
Author(s): D. James B. St. John, F.A. Macrae, M.J. Turunen, K. Liewendahl, P. Partanen, H. Adlercreutz
Primary Institution: The Royal Melbourne Hospital
Hypothesis
Is there a relationship between blood loss and tumor stage in colorectal cancer?
Conclusion
Blood loss varies significantly with the site of the tumor, but not with tumor stage.
Supporting Evidence
- Blood loss was significantly higher in patients with tumors in the right hemicolon compared to those in the left hemicolon and rectum.
- Stage of the tumor did not affect blood loss after accounting for tumor site.
Takeaway
Doctors studied patients with colorectal cancer to see how much blood they lost, and found that where the cancer is located matters more than how advanced it is.
Methodology
The study analyzed 380 fecal samples from 46 patients and performed separate analyses of variance on blood loss and Hb concentration.
Potential Biases
The authors noted potential bias in interpreting the relationship between blood loss and tumor stage due to the effect of tumor site.
Limitations
The study's findings may not apply to smaller sample sizes, as indicated by the authors' acknowledgment of the small number of observations in their own study.
Participant Demographics
Patients with colorectal cancer.
Statistical Information
P-Value
P<0.001
Statistical Significance
p<0.001
Want to read the original?
Access the complete publication on the publisher's website