Diseases of the respiratory' system was the leading cause of morbidity, increasing from 829 cases per 10,000 population in 2005 to 1,647.4 cases per 10,000 population in 2016. Detailed data are not available on the characterization of diseases, such as asthma, allergy and asbestosis, with respiratory disease origin. The leading five causes of cancer in males were cancers of the liver (42.2 per cent), stomach (20.9 per cent), lung (11.9 per cent), oesophagus (5.7 per cent) and pancreas (3.7 per cent), whereas cancers of the liver (36.9 per cent), cervix (13.9 per cent), stomach (10.5 percent), breast (7.1 per cent), oesophagus (5.6 per cent) and ovary (3.8 per cent) were the main causes for women. For example, air pollution from indoor burning of coal or biomass w as associated w ith substantial increase of lung cancer risk.