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Cancer survival in Karunagappally, India, 1991-1997
P Jayalekshmi1, P Gangadharan, P Sebastian
1Natural Background Radiation Registry, Kollam District Kerala, India. nbrrkply@gmail.com
IARC Scientific Publications
|June 17, 2011
Summary
Cancer survival rates in Kerala are low, especially for lung cancer (6%) and oesophageal cancer (14%). Most patients are diagnosed with advanced disease, impacting survival outcomes for common cancers.
Area of Science:
- Epidemiology
- Oncology
- Public Health
Background:
- The Karunagappally cancer registry was established in 1990 in Kerala, India.
- This region has high natural background radiation.
- Cancer occurrence and survival patterns were investigated.
Purpose of the Study:
- To analyze cancer occurrence and survival data.
- To assess survival rates for 22 cancer types from 1991-1997.
- To evaluate the impact of disease stage on survival.
Main Methods:
- Active cancer registration and follow-up methods were employed.
- Survival analysis included 75-100% of registered cases.
- Histological verification ranged from 39-100%.
Main Results:
- Five-year survival rates: lung (6%), breast (45%), cervix (55%), mouth (42%), oesophagus (14%), tongue (31%).
- No distinct survival patterns by age group were observed.
- Advanced disease at diagnosis was common for tongue, oral cavity, hypopharynx, larynx, cervix, and breast cancers.
Conclusions:
- Survival rates for several common cancers in this region are notably low.
- Regional disease spread at diagnosis significantly decreases survival.
- Public health interventions are needed to improve early detection and survival rates.
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