Temporal association of constipation and diarrhoea with a subsequent diagnosis of colorectal cancer: a propensity score–matched case–control study using real-world primary care data - Report - MDSpire
Advertisement
Temporal association of constipation and diarrhoea with a subsequent diagnosis of colorectal cancer: a propensity score–matched case–control study using real-world primary care data
Temporal Relationship Between Constipation and Diarrhea and CRC Diagnosis
Overview
This study explores the temporal association between chronic constipation and diarrhea with colorectal cancer (CRC) diagnosis, revealing that these symptoms are significantly linked only in the months immediately preceding diagnosis.
Background
Colorectal cancer (CRC) is a leading cause of cancer-related mortality globally, with rising incidence attributed to lifestyle and dietary changes. Chronic constipation and diarrhea have been proposed as potential risk factors for CRC, but their role remains debated. Understanding this relationship is crucial for improving early detection and management strategies in primary care.
Data Highlights
Symptom
Odds Ratio (OR)
95% Confidence Interval (CI)
Time Frame
Constipation
3.23
2.85 to 3.66
Within 6 months prior
Diarrhea (at least one diagnosis)
3.37
3.03 to 3.75
Within 6 months prior
Diarrhea (at least two diagnoses)
4.18
3.31 to 5.28
Within 6 months prior
Diarrhea (at least three diagnoses)
6.82
4.43 to 10.49
Within 6 months prior
Key Findings
Constipation was significantly more frequent in CRC patients within 6 months prior to diagnosis (OR 3.23).
Diarrhea showed a stronger association with CRC diagnosis, particularly with increased frequency of documentation.
No associations between bowel symptoms and CRC were found beyond 1 year before diagnosis.
Recent changes in bowel habits may indicate early clinical manifestations of CRC.
Clinical Implications
This study highlights the importance of monitoring bowel habit changes in primary care settings.
Conclusion
The study concludes that chronic constipation and diarrhea are associated with colorectal cancer diagnosis primarily in the months leading up to detection.
