Influence of epidemiological factors on asthma phenotypes among asthma patients attending a tertiary care center – A cross-sectional study

Background: Asthma is a heterogeneous disease presenting with various phenotypes usually characterized by chronic airway inflammation. Aims and Objectives: The aim of the study was to identify epidemiology of bronchial asthma phenotypes in patients attending to tertiary care center. Materials...

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Main Authors: Satish Babu Mededi, Jereen Varghese, Ragulan Rajalingam, Viswambhar V, Nithin Thomas
Format: Article
Language:English
Published: Manipal College of Medical Sciences, Pokhara 2022-08-01
Series:Asian Journal of Medical Sciences
Subjects:
Online Access:https://nepjol.info/index.php/AJMS/article/view/43900
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author Satish Babu Mededi
Jereen Varghese
Ragulan Rajalingam
Viswambhar V
Nithin Thomas
author_facet Satish Babu Mededi
Jereen Varghese
Ragulan Rajalingam
Viswambhar V
Nithin Thomas
author_sort Satish Babu Mededi
collection DOAJ
description Background: Asthma is a heterogeneous disease presenting with various phenotypes usually characterized by chronic airway inflammation. Aims and Objectives: The aim of the study was to identify epidemiology of bronchial asthma phenotypes in patients attending to tertiary care center. Materials and Methods: This was a descriptive cross-sectional study involving 69 patients who are suspected to have asthma according to the Global Initiative for Asthma guidelines. The data of each patient were collected on a proforma specially designed for this study on demographic data, socioeconomic status, body mass index, exposure to environmental factors, and other history-related questions. Sputum cytology and absolute eosinophil count were also examined using coGuide and P<0.05 was considered significant. Asthma phenotypes were the primary outcome and association of environmental factors with asthma phenotypes was the secondary outcome. Results: Out of 69, majority 26 (37.7%) were aged 31–40 years; 35 (50.7%) males and 34 (49.3%) were females. Fifty-eight (84.1%) were illiterate and 46 (66.7%) belonged to low class. Sputum cytology report showed that majority of them, 66.7%, had eosinophilia. The majority, 48 (69.6%), of the participants were triggered by weather and 55.1% had a history of respiratory tract infections. Thirty-three (47.83%) participants had obesity associate asthma, 34 (49.28%) had allergic asthma, and 20 (28.99%) had smoking-related asthma phenotypes. The difference in the proportion of few environment factor was significant for allergic and smoking-related asthma (P>0.005). Conclusion: The factors associated with the asthma phenotypes will help us further in anticipating the clinical course and better management of the specific phenotypes.
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spelling doaj.art-ae493b91fe0347e5b64925cf70ab90cc2022-12-22T02:08:48ZengManipal College of Medical Sciences, PokharaAsian Journal of Medical Sciences2467-91002091-05762022-08-01138110115https://doi.org/10.3126/ajms.v13i8.43900Influence of epidemiological factors on asthma phenotypes among asthma patients attending a tertiary care center – A cross-sectional studySatish Babu Mededi 0https://orcid.org/0000-0002-0010-3144Jereen Varghese 1https://orcid.org/0000-0003-1151-9492Ragulan Rajalingam 2https://orcid.org/0000-0003-2926-6673Viswambhar V 3https://orcid.org/0000-0001-8764-8720Nithin Thomas 4https://orcid.org/0000-0002-8347-9509Professor, Department of Respiratory Medicine, Shri Sathya Sai Medical College and Research Institute, Chennai, Tamil Nadu, India Assistant Professor, Department of Respiratory Medicine, Shri Sathya Sai Medical College and Research Institute, Chennai, Tamil Nadu, India Associate Professor, Department of Respiratory Medicine, Shri Sathya Sai Medical College and Research Institute, Chennai, Tamil Nadu, India Professor and Head, Department of Respiratory Medicine, Shri Sathya Sai Medical College and Research Institute, Chennai, Tamil Nadu, India Professor, Department of Respiratory Medicine, Shri Sathya Sai Medical College and Research Institute, Chennai, Tamil Nadu, India Background: Asthma is a heterogeneous disease presenting with various phenotypes usually characterized by chronic airway inflammation. Aims and Objectives: The aim of the study was to identify epidemiology of bronchial asthma phenotypes in patients attending to tertiary care center. Materials and Methods: This was a descriptive cross-sectional study involving 69 patients who are suspected to have asthma according to the Global Initiative for Asthma guidelines. The data of each patient were collected on a proforma specially designed for this study on demographic data, socioeconomic status, body mass index, exposure to environmental factors, and other history-related questions. Sputum cytology and absolute eosinophil count were also examined using coGuide and P<0.05 was considered significant. Asthma phenotypes were the primary outcome and association of environmental factors with asthma phenotypes was the secondary outcome. Results: Out of 69, majority 26 (37.7%) were aged 31–40 years; 35 (50.7%) males and 34 (49.3%) were females. Fifty-eight (84.1%) were illiterate and 46 (66.7%) belonged to low class. Sputum cytology report showed that majority of them, 66.7%, had eosinophilia. The majority, 48 (69.6%), of the participants were triggered by weather and 55.1% had a history of respiratory tract infections. Thirty-three (47.83%) participants had obesity associate asthma, 34 (49.28%) had allergic asthma, and 20 (28.99%) had smoking-related asthma phenotypes. The difference in the proportion of few environment factor was significant for allergic and smoking-related asthma (P>0.005). Conclusion: The factors associated with the asthma phenotypes will help us further in anticipating the clinical course and better management of the specific phenotypes.https://nepjol.info/index.php/AJMS/article/view/43900asthma; biomarkers; phenotypes; respiratory tract infections; tobacco smoking
spellingShingle Satish Babu Mededi
Jereen Varghese
Ragulan Rajalingam
Viswambhar V
Nithin Thomas
Influence of epidemiological factors on asthma phenotypes among asthma patients attending a tertiary care center – A cross-sectional study
Asian Journal of Medical Sciences
asthma; biomarkers; phenotypes; respiratory tract infections; tobacco smoking
title Influence of epidemiological factors on asthma phenotypes among asthma patients attending a tertiary care center – A cross-sectional study
title_full Influence of epidemiological factors on asthma phenotypes among asthma patients attending a tertiary care center – A cross-sectional study
title_fullStr Influence of epidemiological factors on asthma phenotypes among asthma patients attending a tertiary care center – A cross-sectional study
title_full_unstemmed Influence of epidemiological factors on asthma phenotypes among asthma patients attending a tertiary care center – A cross-sectional study
title_short Influence of epidemiological factors on asthma phenotypes among asthma patients attending a tertiary care center – A cross-sectional study
title_sort influence of epidemiological factors on asthma phenotypes among asthma patients attending a tertiary care center a cross sectional study
topic asthma; biomarkers; phenotypes; respiratory tract infections; tobacco smoking
url https://nepjol.info/index.php/AJMS/article/view/43900
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