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Effect of peripheral agents and air pollution on prevalence of chronic obstructive pulmonary disease in Tehran metropolis (2015–2017)

Aim Chronic obstructive pulmonary disease (COPD) is a chronic pulmonary inflammation that has various symptoms such as respiratory distress and severe cough. This disease has a global distribution; however, developed countries have the highest share in the number of people with this disease. Materials and methods As a developing country, Iran has included several cases of patients with COPD. The metropolis of Tehran, the capital of Iran, is the most industrialized city in the country. In this study, using geographic information system software, dispersion and factors influencing the distribution of patients with COPD referred to Masih Daneshvari Hospital in Tehran (2015–2017) were investigated. Results The results showed that distribution of patients in Tehran was nonuniform, and the accumulation of patients with COPD in the northern regions was more than other parts of Tehran. Conclusion Factors such as surface heights, opiate and cigarette consumption, and the presence of air pollutants in different areas can be cited as the cause of this heterogeneous distribution.