Published in COPD on March 01, 2005
A Randomized Trial of Long-Term Oxygen for COPD with Moderate Desaturation. N Engl J Med (2016) 3.99
The SF-36 and SGRQ: validity and first look at minimum important differences in IPF. Respir Med (2009) 2.18
Relationship between quantitative CT metrics and health status and BODE in chronic obstructive pulmonary disease. Thorax (2012) 2.15
Combined corticosteroid and long-acting beta(2)-agonist in one inhaler versus long-acting beta(2)-agonists for chronic obstructive pulmonary disease. Cochrane Database Syst Rev (2012) 1.95
Spirometry and health status worsen with weight gain in obese smokers but improve in normal-weight smokers. Am J Respir Crit Care Med (2014) 1.77
Racial differences in quality of life in patients with COPD. Chest (2011) 1.64
Lung volume reduction coil treatment for patients with severe emphysema: a European multicentre trial. Thorax (2014) 1.62
Creating scenarios of the impact of COPD and their relationship to COPD Assessment Test (CAT™) scores. BMC Pulm Med (2011) 1.54
Assessing health status in COPD. A head-to-head comparison between the COPD assessment test (CAT) and the clinical COPD questionnaire (CCQ). BMC Pulm Med (2012) 1.52
Relationship between FEV1 change and patient-reported outcomes in randomised trials of inhaled bronchodilators for stable COPD: a systematic review. Respir Res (2011) 1.51
A randomised trial of lung sealant versus medical therapy for advanced emphysema. Eur Respir J (2015) 1.45
Long-term follow-up after bronchoscopic lung volume reduction treatment with coils in patients with severe emphysema. Respirology (2014) 1.44
The clinical impact of non-obstructive chronic bronchitis in current and former smokers. Respir Med (2013) 1.23
Long-acting beta-agonists in the management of chronic obstructive pulmonary disease: current and future agents. Respir Res (2010) 1.21
A blinded evaluation of the efficacy and safety of glycopyrronium, a once-daily long-acting muscarinic antagonist, versus tiotropium, in patients with COPD: the GLOW5 study. BMC Pulm Med (2014) 1.21
L-arginine and vitamin D adjunctive therapies in pulmonary tuberculosis: a randomised, double-blind, placebo-controlled trial. PLoS One (2013) 1.20
Correlating changes in lung function with patient outcomes in chronic obstructive pulmonary disease: a pooled analysis. Respir Res (2011) 1.19
Efficacy and safety of fixed-dose combinations of aclidinium bromide/formoterol fumarate: the 24-week, randomized, placebo-controlled AUGMENT COPD study. Respir Res (2014) 1.12
Comparative efficacy of long-acting bronchodilators for COPD: a network meta-analysis. Respir Res (2013) 1.12
Ciprofloxacin dry powder for inhalation in non-cystic fibrosis bronchiectasis: a phase II randomised study. Eur Respir J (2012) 1.11
Improving the interpretation of quality of life evidence in meta-analyses: the application of minimal important difference units. Health Qual Life Outcomes (2010) 1.09
Efficacy and safety of once-daily aclidinium in chronic obstructive pulmonary disease. Respir Res (2011) 1.09
The health economic impact of disease management programs for COPD: a systematic literature review and meta-analysis. BMC Pulm Med (2013) 1.05
Efficacy of once-daily indacaterol 75 μg relative to alternative bronchodilators in COPD: a study level and a patient level network meta-analysis. BMC Pulm Med (2012) 1.04
Pedometers to enhance physical activity in COPD: a randomised controlled trial. Eur Respir J (2014) 1.02
Measuring respiratory symptoms of COPD: performance of the EXACT- Respiratory Symptoms Tool (E-RS) in three clinical trials. Respir Res (2014) 0.99
Daily step count predicts acute exacerbations in a US cohort with COPD. PLoS One (2013) 0.98
Comparative efficacy of indacaterol 150 μg and 300 μg versus fixed-dose combinations of formoterol + budesonide or salmeterol + fluticasone for the treatment of chronic obstructive pulmonary disease--a network meta-analysis. Int J Chron Obstruct Pulmon Dis (2011) 0.97
The impact of obesity on walking and cycling performance and response to pulmonary rehabilitation in COPD. BMC Pulm Med (2010) 0.97
Effects of Tai Chi in patients with chronic obstructive pulmonary disease: preliminary evidence. PLoS One (2013) 0.95
Long-term antifungal treatment improves health status in patients with chronic pulmonary aspergillosis: a longitudinal analysis. Clin Infect Dis (2013) 0.95
Efficacy and safety of endobronchial valves for advanced emphysema: a meta analysis. J Thorac Dis (2015) 0.95
An Internet-Mediated Pedometer-Based Program Improves Health-Related Quality-of-Life Domains and Daily Step Counts in COPD: A Randomized Controlled Trial. Chest (2015) 0.93
Validity, reliability, and responsiveness of a new short Visual Simplified Respiratory Questionnaire (VSRQ) for health-related quality of life assessment in chronic obstructive pulmonary disease. Int J Chron Obstruct Pulmon Dis (2009) 0.92
Efficacy and safety of coadministration of once-daily indacaterol and glycopyrronium versus indacaterol alone in COPD patients: the GLOW6 study. Int J Chron Obstruct Pulmon Dis (2014) 0.91
Efficacy and safety characteristics of mometasone furoate/formoterol fumarate fixed-dose combination in subjects with moderate to very severe COPD: findings from pooled analysis of two randomized, 52-week placebo-controlled trials. Int J Chron Obstruct Pulmon Dis (2012) 0.89
Effects of mometasone furoate/formoterol fumarate fixed-dose combination formulation on chronic obstructive pulmonary disease (COPD): results from a 52-week Phase III trial in subjects with moderate-to-very severe COPD. Int J Chron Obstruct Pulmon Dis (2012) 0.89
A randomized, blinded study to evaluate the efficacy and safety of umeclidinium 62.5 μg compared with tiotropium 18 μg in patients with COPD. Int J Chron Obstruct Pulmon Dis (2016) 0.88
The effect of end-of-life discussions on perceived quality of care and health status among patients with COPD. Chest (2012) 0.88
RECODE: design and baseline results of a cluster randomized trial on cost-effectiveness of integrated COPD management in primary care. BMC Pulm Med (2013) 0.87
The psychometric properties of the St George's Respiratory Questionnaire (SGRQ) in patients with idiopathic pulmonary fibrosis: a literature review. Health Qual Life Outcomes (2014) 0.87
Occupational exposures are associated with worse morbidity in patients with chronic obstructive pulmonary disease. Am J Respir Crit Care Med (2015) 0.87
Multivariate models of determinants of health-related quality of life in severe chronic obstructive pulmonary disease. J Rehabil Res Dev (2009) 0.87
Clinical trial design in chronic obstructive pulmonary disease: current perspectives and considerations with regard to blinding of tiotropium. Respir Res (2012) 0.87
Risk factors for COPD exacerbations in inhaled medication users: the COPDGene study biannual longitudinal follow-up prospective cohort. BMC Pulm Med (2016) 0.86
Exacerbation-related impairment of quality of life and work productivity in severe and very severe chronic obstructive pulmonary disease. Int J Chron Obstruct Pulmon Dis (2013) 0.86
[The effect of one year outpatient pulmonary rehabilitation on patients with COPD]. Wien Klin Wochenschr (2009) 0.86
The effect of aclidinium bromide on daily respiratory symptoms of COPD, measured using the Evaluating Respiratory Symptoms in COPD (E-RS: COPD) diary: pooled analysis of two 6-month Phase III studies. Respir Res (2016) 0.85
Comparison between an alternative and the classic definition of chronic bronchitis in COPDGene. Ann Am Thorac Soc (2015) 0.85
Comparative efficacy of long-acting muscarinic antagonist monotherapies in COPD: a systematic review and network meta-analysis. Int J Chron Obstruct Pulmon Dis (2015) 0.84
Supplemental vitamin D and physical performance in COPD: a pilot randomized trial. Int J Chron Obstruct Pulmon Dis (2013) 0.84
Behavioral and characterological self-blame in chronic obstructive pulmonary disease. J Psychosom Res (2011) 0.83
Effectiveness of the Assessment of Burden of Chronic Obstructive Pulmonary Disease (ABC) tool: study protocol of a cluster randomised trial in primary and secondary care. BMC Pulm Med (2014) 0.83
A pilot study of the impact of high-frequency chest wall oscillation in chronic obstructive pulmonary disease patients with mucus hypersecretion. Int J Chron Obstruct Pulmon Dis (2011) 0.83
Chronic obstructive pulmonary disease in China: the potential role of indacaterol. J Thorac Dis (2013) 0.83
Evaluation of the sustaining effects of Tai Chi Qigong in the sixth month in promoting psychosocial health in COPD patients: a single-blind, randomized controlled trial. ScientificWorldJournal (2013) 0.83
Indacaterol for chronic obstructive pulmonary disease: systematic review and meta-analysis. PLoS One (2013) 0.83
Azithromycin and cough-specific health status in patients with chronic obstructive pulmonary disease and chronic cough: a randomised controlled trial. Respir Res (2013) 0.82
Macrolide therapy in adults and children with non-cystic fibrosis bronchiectasis: a systematic review and meta-analysis. PLoS One (2014) 0.82
Differential changes in quality of life components over 5 years in chronic obstructive pulmonary disease patients. Int J Chron Obstruct Pulmon Dis (2015) 0.81
Profile of aclidinium bromide in the treatment of chronic obstructive pulmonary disease. Int J Chron Obstruct Pulmon Dis (2011) 0.81
Effects of Tai Chi on exercise capacity and health-related quality of life in patients with chronic obstructive pulmonary disease: a systematic review and meta-analysis. Int J Chron Obstruct Pulmon Dis (2014) 0.81
Determinants of health related quality of life in a sample of patients with chronic obstructive pulmonary disease in Nigeria using the St. George's respiratory questionnaire. Afr Health Sci (2013) 0.81
Dual Bronchodilator Therapy with Umeclidinium/Vilanterol Versus Tiotropium plus Indacaterol in Chronic Obstructive Pulmonary Disease: A Randomized Controlled Trial. Drugs R D (2016) 0.81
Endobronchial coils for severe emphysema are effective up to 12 months following treatment: medium term and cross-over results from a randomised controlled trial. PLoS One (2015) 0.81
Safety and efficacy of 12-week or longer indacaterol treatment in moderate-to-severe COPD patients: a systematic review. Lung (2013) 0.80
SOSPES: SPIRIVA® observational study measuring SGRQ score in routine medical practice in Central and Eastern Europe. Int J Chron Obstruct Pulmon Dis (2013) 0.80
Socioeconomic deprivation and the outcome of pulmonary rehabilitation in England and Wales. Thorax (2017) 0.80
Obesity is Associated with Increased Morbidity in Moderate to Severe COPD. Chest (2016) 0.79
Prevention of clinically important deteriorations in COPD with umeclidinium/vilanterol. Int J Chron Obstruct Pulmon Dis (2016) 0.79
The efficacy and safety of triple inhaled treatment in patients with chronic obstructive pulmonary disease: a systematic review and meta-analysis using Bayesian methods. Int J Chron Obstruct Pulmon Dis (2015) 0.78
Pulmonary effects of immediate versus deferred antiretroviral therapy in HIV-positive individuals: a nested substudy within the multicentre, international, randomised, controlled Strategic Timing of Antiretroviral Treatment (START) trial. Lancet Respir Med (2016) 0.78
Early response to inhaled bronchodilators and corticosteroids as a predictor of 12-month treatment responder status and COPD exacerbations. Int J Chron Obstruct Pulmon Dis (2016) 0.78
Age-Related Differences in Health-Related Quality of Life in COPD: An Analysis of the COPDGene and SPIROMICS Cohorts. Chest (2015) 0.77
Chinese Herbal Medicine and Salmeterol and Fluticasone Propionate for Chronic Obstructive Pulmonary Disease: Systematic Review and Network Meta-Analysis. Medicine (Baltimore) (2016) 0.77
Chronic disease self-management and exercise in COPD as pulmonary rehabilitation: a randomized controlled trial. Int J Chron Obstruct Pulmon Dis (2014) 0.77
Long-Term Effects of an Internet-Mediated Pedometer-Based Walking Program for Chronic Obstructive Pulmonary Disease: Randomized Controlled Trial. J Med Internet Res (2016) 0.77
Once-daily fluticasone furoate/vilanterol 100/25 mcg versus twice daily combination therapies in COPD - mixed treatment comparisons of clinical efficacy. Respir Res (2015) 0.76
Efficacy and safety of once-daily inhaled umeclidinium/vilanterol in Asian patients with COPD: results from a randomized, placebo-controlled study. Int J Chron Obstruct Pulmon Dis (2015) 0.76
Efficacy and safety of a fixed-dose combination of mometasone furoate and formoterol fumarate in subjects with moderate to very severe COPD: results from a 52-week Phase III trial. Int J Chron Obstruct Pulmon Dis (2012) 0.76
Bronchoscopic lung volume reduction by endobronchial valve in advanced emphysema: the first Asian report. Int J Chron Obstruct Pulmon Dis (2015) 0.76
Do supervised weekly exercise programs maintain functional exercise capacity and quality of life, twelve months after pulmonary rehabilitation in COPD? BMC Pulm Med (2007) 0.76
A randomised, open-label study of umeclidinium versus glycopyrronium in patients with COPD. ERJ Open Res (2016) 0.76
Effectiveness of the Assessment of Burden of COPD (ABC) tool on health-related quality of life in patients with COPD: a cluster randomised controlled trial in primary and hospital care. BMJ Open (2016) 0.76
Cost-effectiveness of integrated COPD care: the RECODE cluster randomised trial. BMJ Open (2015) 0.76
The effect of umeclidinium added to inhaled corticosteroid/long-acting β2-agonist in patients with symptomatic COPD: a randomised, double-blind, parallel-group study. NPJ Prim Care Respir Med (2016) 0.75
A randomized, parallel-group study to evaluate the efficacy of umeclidinium/vilanterol 62.5/25 μg on health-related quality of life in patients with COPD. Int J Chron Obstruct Pulmon Dis (2016) 0.75
High-dose oral N-acetylcysteine fails to improve respiratory health status in patients with chronic obstructive pulmonary disease and chronic bronchitis: a randomized, placebo-controlled trial. Int J Chron Obstruct Pulmon Dis (2016) 0.75
Clinical use of aclidinium in patients with COPD. Int J Chron Obstruct Pulmon Dis (2014) 0.75
Differences in adjustment between individuals with alpha-1 antitrypsin deficiency (AATD)-associated COPD and non-AATD COPD. COPD (2013) 0.75
Emergency Hospital Care for Exacerbation of COPD: Is Inhaled Maintenance Therapy Modified? COPD (2015) 0.75
Patient self-management in primary care patients with mild COPD - protocol of a randomised controlled trial of telephone health coaching. BMC Pulm Med (2015) 0.75
Factors associated with exacerbation in mild- to-moderate COPD patients. Int J Chron Obstruct Pulmon Dis (2016) 0.75
Rationale for and design of the Idiopathic Pulmonary Fibrosis-PRospective Outcomes (IPF-PRO) registry. BMJ Open Respir Res (2016) 0.75
Positive correlation of airway resistance and serum asymmetric dimethylarginine level in COPD patients with systemic markers of low-grade inflammation. Int J Chron Obstruct Pulmon Dis (2017) 0.75
Umeclidinium/vilanterol as step-up therapy from tiotropium in patients with moderate COPD: a randomized, parallel-group, 12-week study. Int J Chron Obstruct Pulmon Dis (2017) 0.75
The Prevalence of Chronic Obstructive Pulmonary Disease and the Determinants of Underdiagnosis in Women Exposed to Biomass Fuel in India- a Cross Section Study. Chonnam Med J (2016) 0.75