Poor Prognosis for Malignant Melanoma in Northern Ireland
Author Information
Author(s): L.G. Gordon, W.S. Lowry, P.J. Pedlow, C.C. Patterson
Primary Institution: Queen's University of Belfast
Hypothesis
What factors contribute to the poor prognosis of malignant melanoma in Northern Ireland?
Conclusion
The study found that thickness, ulceration, histopathological type, tumor profile, and age significantly affect survival rates in malignant melanoma patients.
Supporting Evidence
- Thicker lesions are associated with worse prognosis.
- Ulceration is an independent indicator of poor survival.
- Age is a significant factor, with older patients having worse outcomes.
- Histopathological type significantly affects prognosis, with ALM having the worst outcomes.
- Flat profile tumors have a higher risk than their thickness would suggest.
Takeaway
This study shows that people with thicker skin cancer have a harder time surviving, and older people are more affected.
Methodology
The study reviewed histopathological records of all suspected cases of malignant melanoma in Northern Ireland from 1974-1978 and followed up on survival until 1988.
Potential Biases
The study's retrospective nature may introduce bias due to incomplete data on clinical staging.
Limitations
Clinical stage data was often not recorded, which may have affected the analysis of survival rates.
Participant Demographics
The study included patients diagnosed with cutaneous malignant melanoma in Northern Ireland, with a noted female to male ratio of approximately three to one.
Statistical Information
P-Value
p<0.001
Confidence Interval
(1.08, 1.42)
Statistical Significance
p<0.001
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