Lung Diseases, Cancer & its Epidemiology
obstructive pulmonary disease is responsible for early mortality, high death
rates and significant cost to health systems. The projection for 2020 indicates
that COPD will be the third leading cause of death in the world. Active
smoking remains the main risk factor, but other factors such as occupational
factors, infections and the role of air pollution also play a major role.
Prevalence of COPD varies according to the country, age and sex. The major
challenge in the coming years will be to prevent onset of smoking along with
early detection of the disease in the population. An estimated 328 million
people have COPD worldwide and in 15 years, COPD is expected to become the
leading cause of death worldwide.