Trends in Bronchial Carcinoma in Yorkshire (1976-1983)
Author Information
Author(s): C.K. Connolly, W.G. Jones, J. Thorogood, C. Head, M.F. Muers
Primary Institution: Yorkshire Regional Cancer Organisation
Hypothesis
We hypothesized that more elderly patients in our region have had surgical treatment in recent years.
Conclusion
The study found that increased diagnostic activity and chemotherapy improved the prognosis for patients with small cell carcinoma and those over 70 with non-small cell cancer.
Supporting Evidence
- The proportion of females with lung cancer increased by 4.8% during the study period.
- The histological confirmation rate rose from 45% to 58%.
- The proportion of patients with small cell carcinoma treated by chemotherapy increased from 17% to 39%.
- Survival for small cell carcinoma patients improved significantly, especially for those under 60.
- Patients over 70 showed a significant trend towards improved survival with better management.
Takeaway
Doctors found that more people are getting diagnosed with lung cancer, and treatments are helping some patients live longer.
Methodology
The study analyzed all lung cancer cases registered in the Yorkshire Regional Cancer Registry from 1976 to 1983, excluding death certificate registrations.
Potential Biases
There is a possibility that the observed improvement in survival is due to faster reporting or registering of cases.
Limitations
The registry may not hold records for all patients with lung cancer, and survival data for patients registered at death were excluded.
Participant Demographics
The study included patients with lung cancer in the Yorkshire region, with a noted increase in female cases and mean age at presentation.
Statistical Information
P-Value
0.004
Statistical Significance
p<0.012
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