[Geographic spreading of lung cancer in Azerbaijan].

Lung cancer is the second most common cancer and the leading cause of cancer death for both men and women. The impact of geographic as well as of exogenous factor and factors of risk, life style and environment play an important role in etiology of lung cancer. Geographic spread of lung cancer data in literature is fragmentary. The limited existing literature does not report a consistent story of geographic variation in Azerbaijan for the incidence associated with lung cancer. The aim of this study was to evaluate the impact of geographic variation on spread of lung cancer in Azerbaijan. Frequency of lung cancer in various regions of Azerbaijan; different histological types, sex, age and particular risk factors were investigated. It was revealed that epidermoid cancer was the most common histological type in all regions. The highest rate of epidermoid cancer 230 (55.56%) was revealed in industrial regions and industrial cities (Baku and Sumgait). The lowest rate of lung cancer was found in mountain region 12 (3.76%). Smoking and drinking alcohol increases risk of epidermoid cancer (41.2% of patients smoke and drink alcohol). The highest morbidity (13.55 per 100,000 population) and mortality (0.11) rates from lung cancer were observed in industrial regions. Analyses revealed that different endogenous and exogenous factors are associated with lung cancer.