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Lung India. 2020 Mar-Apr;37(2):100-106. doi: 10.4103/lungindia.lungindia_466_19.

Methodology of Seasonal Waves of Respiratory Disorders survey conducted at respiratory outpatient clinics across India.

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Department of Medicine, Division of Allergy and Pulmonary Medicine, SMS Medical College, Jaipur, Rajasthan, India.
Department of Chest and Tuberculosis, Institute of Respiratory Disease, SMS Medical College, Jaipur, Rajasthan, India.
Department of Pharmacology, Lal Bahadur Shastri College of Pharmacy, Jaipur, Affiliate to University of Rajastha, Rajasthan, India.
Department of Pulmonary Medicine, Institute of Chest Diseases, Government Medical College, Kozhikode, Kerala, India.
Department of Pulmonary Medicine, MLN Medical College, Allahabad, Uttar Pradesh, India.
Chest Clinic, Varanasi, Uttar Pradesh, India.
Department of Respiratory Medicine, King George's Medical University, Lucknow, Uttar Pradesh, India.
Executive Director, Asthma Bhawan, Jaipur, Rajasthan, India.
Department of Research Division, Asthma Bhawan, Jaipur, Rajasthan, India.
Department of Medicine, SMS Medical College, Jaipur, Rajasthan, India.
Department of Preventive Cardiology and Internal Medicine, Eternal Heart Care Centre and Research Institute, Mount Sinai New York Affiliate, Jaipur, Rajasthan, India.
Department of Internal and Pulmonary Medicine, SKIMS, Srinagar, Jammu and Kashmir, India.
Director, Chest Research Foundation, Pune, Maharashtra, India.
Director, Asthma Bhawan, Jaipur, Rajasthan, India.
SWORD Study Group for the Indian Chest Society SWORD Survey Conducted by Department of Pulmonary Medicine, Asthma Bhawan, Jaipur, Rajasthan, India.



Respiratory disorders are important contributors to disease burden across the world. The aim is to assess the proportionate burden of types of respiratory diseases and their seasonal patterns in India we are performing a field study. The present report describes methodological aspects of a respiratory disease point prevalence survey from India.


A total of 4108 chest physicians were invited. Acceptance was received from 420 sites. Chest physicians were classified according to location of practice one as medical college, district government hospital, private hospital, and private clinics. Qualifications of practicing chest physicians were postgraduate in chest medicine, including Doctorate of Medicine (68.4%), diploma in chest medicine (22.1%), and Postgraduate in Medicine (9.5%). The study questionnaire was designed to record demographic data, comorbidities, risk factors, and respiratory conditions based on ICD-10.


A total of 366 sites provided baseline data, and the response rate of recruitment of the study sites was 8.9% in the baseline phase. However, government and private medical colleges, as well as government and private hospitals across India, were part of recruitment of respiratory patients for this survey.


It is feasible to conduct a large multisite study to assess respiratory disease burden. Challenges include low response rate and logistic issues.


Epidemiology; healthcare; respiratory tract diseases

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