RATIONALE:

Chronic Obstructive Pulmonary Diseases (COPD) is an increasing cause of morbidity and mortality worldwide, and has been strongly related to tobacco smoking. Most studies on COPD have concentrated on smokers. Our data demonstrated that the risk of COPD in non-smokers is higher than previously believed.

METHODS:

This is a retrospective observational study. 180 non-smoker COPD patients were selected from the year 2016-2018. History with questionnaire was taken and subsequent spirometry results were evaluated. They were categorized into mild, moderate, severe and very severe COPD according to the GOLD guidelines followed by questionnaires.

RESULTS:

Out of 180 non-smoker COPD patients, 54% were females. The percentage of mild, moderate, severe and very severe patients according to the GOLD Guidelines was 26%, 53%, 58% and 43%, respectively. The distribution of …