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Summary
Epidemiology of bronchogenic carcinoma in India differs from Western countries, with a significant proportion of patients being non-smokers. Smoking duration strongly correlates with carcinoma risk, and squamous-cell carcinoma is more common in smokers.
Area of Science:
- Oncology
- Epidemiology
- Public Health
Background:
- Bronchogenic carcinoma (lung cancer) epidemiology varies globally.
- Understanding regional differences is crucial for targeted prevention and treatment.
Purpose of the Study:
- To investigate the epidemiological characteristics of bronchogenic carcinoma in Chandigarh, Northern India.
- To compare these findings with those reported in Western countries.
Main Methods:
- A retrospective study of 336 patients diagnosed with bronchogenic carcinoma.
- Data collection included patient demographics, smoking history (cigarettes, bidis, hukkas), and tumor histology.
- Statistical analysis to identify associations between risk factors and cancer type.
Main Results:
- A notable proportion of patients (nearly one-third) and most women (94.4%) were never smokers.
- Peak incidence occurred between ages 51-60 years, with 14.6% under 41.
- Squamous-cell carcinoma was most frequent (32.4%) and strongly associated with smoking; adenocarcinoma was more common in non-smokers (13.2%).
Conclusions:
- Lung cancer epidemiology in Northern India shows distinct patterns compared to the West, particularly regarding smoking prevalence.
- Smoking is a significant risk factor, with duration correlating to carcinoma frequency.
- Histological types differ between smokers and non-smokers, highlighting the need for localized public health strategies.