ArticleJournal of family medicine and primary care2019
Clinical, demographic and radiological profile of smoker COPD versus nonsmoker COPD patients at a tertiary care center in North India.
Article in Journal of family medicine and primary care, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
11 citing papers in PubMed.
- Article
- Inaccurate and misleading meta-analysis of E-cigarettes and population-based diseases.Internal and emergency medicine · 2025Article
- Clinical features and prognostic risk factors of different sex with acute exacerbations of chronic obstructive pulmonary disease.Scientific reports · 2024Article
- Impact of Individual Characteristics on Hospital Outcomes in Exacerbated COPD in a Biomass-Exposed Turkish Population.Journal of clinical medicine · 2024Article
- The severity of non-smoking chronic obstructive pulmonary disease is correlated with biomass fuel exposure and COPD assessment test score.Lung India : official organ of Indian Chest Society · 2024Article
- Vardenafil alleviates cigarette smoke-induced chronic obstructive pulmonary disease by activating autophagy via the AMPK/mTOR signalling pathway: an in vitro and in vivo study.In vitro cellular & developmental biology. Animal · 2023Article
- Use of single-inhaler triple therapy in the management of obstructive airway disease: Indian medical experts' review.ERJ open research · 2022Review
- What are the Differences Between Smoker and Non-smoker COPD Cases? Is it a Different Phenotype?Turkish thoracic journal · 2021Article
- Periodontal Status, Its Treatment Needs, and Its Relationship with Airflow Limitation and Quality of Life in COPD Patients.The Eurasian journal of medicine · 2020Article
- The SNP rs13147758 in theFrontiers in genetics · 2020Article
- Characteristics of Patients with Chronic Obstructive Pulmonary Disease Exposed to Different Environmental Risk Factors: A Large Cross-Sectional Study.International journal of chronic obstructive pulmonary disease · 2020Observational
Corrections and comments
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Authors and funding
6 authors.
Funding
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Abstract
introductionCigarette smoking is the most predominant risk factor for development of chronic obstructive pulmonary disease (COPD). However, a considerable amount of patients do develop COPD without exposure to cigarette smoking. We aimed to analyze the incidence, demographic and clinical profile of nonsmoker COPD subjects at a tertiary care center.
methodsIn this prospective observational study, 410 patients were screened for dyspnea. On the basis of spirometry findings, 360 patients were diagnosed as COPD and enrolled into the study. Patients were categorized into 2 groups on the basis of smoking habits (smoker and nonsmoker COPD). Clinical and demographic attributes were compared in between these two groups. This study was conducted over a period of one year, from August 2014 to July 2015. All statistical analyses were performed using Statistical Package for the Social Sciences version 19.0 (SPSS Inc, Chicago, IL, USA). Values were considered to be statistically significant at
resultsOut of 360 COPD cases, about 2/3
conclusionNonsmoker COPD is emerging as a distinctive phenotype. They have less impairment in airflow limitation, and a lower prevalence of emphysema, chronic cough, and sputum compared with their smoking counterparts.
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