Smoking has extensive effects on respiratory function. The rate of cigarette smoking among young people has continued to increase steadily. Exposure to cigarette smoking is usually measured in terms of 'Pack-Year'. The aim of the study was to observe the effect of pack years on pulmonary functions in apparently healthy asymptomatic smokers by measuring FVC, FEV₁, FEV₁/FVC ratio and PEFR value by digital spirometer. This cross-sectional observational study was conducted in the department of Physiology, Sylhet MAG Osmani Medical College in collaboration with department of Medicine, Sylhet MAG Osmani Medical College Hospital, Sylhet, Bangladesh from July 2016 to June 2017. A total number of 100 male smokers, age ranging from 18-60 years and BMI within normal limit (18.5-24.9kg/m²) were included in this study. Their pulmonary functions were studied by measuring FVC, FEV₁, FEV₁/FVC ratio and PEFR. Relationship between pack-year and pulmonary function test parameters was established by one way ANOVA test. In this study we found that lung function parameters shared an inverse relationship with pack year of smoking. The percentage of predicted values of FEV₁, FEV₁/FVC ratio and PEFR were significantly lower (p<0.001) in heavy smokers who smoked more than 30 pack years. Therefore, by this study we inferred that those who smoked more than 10 pack years are associated with accelerated decline in lung function.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Exercise-Driven Comprehensive Recovery: Pulmonary Rehabilitation's Impact on Lung Function, Mechanics, and Immune Response in Post-COVID-19 Patients.
Infect Dis Rep
January 2025
Postgraduate Program in Sciences of Human Movement and Rehabilitation, Federal University of São Paulo (UNIFESP), Santos 11060-001, Brazil.
We sought to evaluate the effects of a 12-week pulmonary rehabilitation (PR) program on lung function, mechanics, as well as pulmonary and systemic inflammation in a cohort of 33 individuals with moderate to severe post-COVID-19. : The pulmonary rehabilitation (PR) program employed a combination of aerobic and resistance exercises. Thirty minutes of treadmill training at 75% of the maximum heart rate, combined with 30 min resistance training consisting of 75% of one maximum repetition, three times a week throughout 12 weeks.
View Article and Find Full Text PDFObjective: Scleroderma-associated autoantibodies (SSc-Abs) are specific in participants (pts) with systemic sclerosis and are associated with organ involvement. Our objective was to assess the influence of baseline SSc-Abs on the trajectories of the clinical outcome assessments (COAs) in a phase III randomized controlled trial.
Methods: We used data on both the groups who received placebo (Pbo) and tocilizumab from the focuSSced trial.
Background And Aims: Hematopoietic stem cell transplantation (HSCT) is a key therapeutic approach for pediatric patients with hematologic and non-hematologic disorders. However, post-transplant pulmonary complications remain a significant cause of morbidity and mortality. Pulmonary Function Tests (PFTs) are essential for the early detection of pulmonary dysfunction, yet their application in pediatric HSCT recipients has yielded inconsistent results.
View Article and Find Full Text PDFSpirometric pattern and cardiovascular risk: a prospective study of 0.3 million Chinese never-smokers.
Lancet Reg Health West Pac
January 2025
Department of Epidemiology & Biostatistics, School of Public Health, Peking University, Beijing 100191, China.
Background: Existing studies have not provided robust evidence about the CVD risk of non-smoking patients with restrictive spirometric pattern (RSP) or airflow obstruction (AFO), and how the risk is modified by body shape. We aimed to bridge the gap.
Methods: We used never-smokers' data from the China Kadoorie Biobank (CKB) and performed Cox models by sex (278,953 females and 50,845 males).
Tregs levels and phenotype modifications during Amyotrophic Lateral Sclerosis course.
Front Immunol
January 2025
Department of Neurosciences, Ospedale Civile di Baggiovara, Azienda Ospedaliero-Universitaria di Modena, Modena, Italy.
Introduction: T regulatory cells (Tregs) inversely correlate with disease progression in Amyotrophic Lateral Sclerosis (ALS) and fast-progressing ALS patients have been reported to exhibit dysfunctional, as well as reduced, levels of Tregs. This study aimed to evaluate the longitudinal changes in Tregs among ALS patients, considering potential clinical and biological modifiers of their percentages and concentrations. Additionally, we explored whether measures of ALS progression, such as the decline over time in the revised ALS Functional Rating Scale (ALSFRS-r) or forced vital capacity (FVC) correlated Treg levels and whether Treg phenotype varied during the course of ALS.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!