Published in Lancet on August 29, 2009
The minimal important difference of exercise tests in severe COPD. Eur Respir J (2010) 3.27
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Structural and functional changes of peripheral muscles in chronic obstructive pulmonary disease patients. Curr Opin Pulm Med (2010) 0.95
Predictors of mortality in elderly subjects with obstructive airway disease: the PILE score. Ann Epidemiol (2010) 0.95
The rise of multiple imputation: a review of the reporting and implementation of the method in medical research. BMC Med Res Methodol (2015) 0.94
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Predicting frequent COPD exacerbations using primary care data. Int J Chron Obstruct Pulmon Dis (2015) 0.85
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How many steps are enough to avoid severe physical inactivity in patients with chronic obstructive pulmonary disease? Respirology (2012) 0.84
The EQ-5D-5L health status questionnaire in COPD: validity, responsiveness and minimum important difference. Thorax (2016) 0.84
Impact of obesity on the clinical profile of a population-based sample with chronic obstructive pulmonary disease. PLoS One (2014) 0.83
Development and validation of a model to predict the risk of exacerbations in chronic obstructive pulmonary disease. Int J Chron Obstruct Pulmon Dis (2013) 0.82
Using cluster analysis to identify phenotypes and validation of mortality in men with COPD. Lung (2014) 0.82
Chronic Obstructive Pulmonary Disease heterogeneity: challenges for health risk assessment, stratification and management. J Transl Med (2014) 0.81
Multi-component assessment of chronic obstructive pulmonary disease: an evaluation of the ADO and DOSE indices and the global obstructive lung disease categories in international primary care data sets. NPJ Prim Care Respir Med (2016) 0.81
Prognostic assessment of patients with COPD. Lancet (2009) 0.80
Prediction of short term re-exacerbation in patients with acute exacerbation of chronic obstructive pulmonary disease. Int J Chron Obstruct Pulmon Dis (2015) 0.80
Impact of risk factors, activities and psychological disorders on the health of patients with chronic obstructive pulmonary disease in China: a cross-sectional study. BMC Public Health (2013) 0.80
Development of a modified BODE index as a mortality risk measure among older adults with and without chronic obstructive pulmonary disease. Am J Epidemiol (2013) 0.79
The inspiratory capacity/total lung capacity ratio as a predictor of survival in an emphysematous phenotype of chronic obstructive pulmonary disease. Int J Chron Obstruct Pulmon Dis (2015) 0.79
Tiotropium might improve survival in subjects with COPD at high risk of mortality. Respir Res (2014) 0.78
Validating and updating a risk model for pneumonia - a case study. BMC Med Res Methodol (2012) 0.78
Prediction of COPD-specific health-related quality of life in primary care COPD patients: a prospective cohort study. NPJ Prim Care Respir Med (2014) 0.78
From BODE to ADO to outcomes in multimorbid COPD patients. Lancet (2009) 0.78
Adjusting for COPD severity in database research: developing and validating an algorithm. Int J Chron Obstruct Pulmon Dis (2011) 0.78
Correlation of cardiopulmonary exercise testing parameters with quality of life in stable COPD patients. J Thorac Dis (2016) 0.77
The relationship of the BODE index to oxygen saturation during daily activities in patients with chronic obstructive pulmonary disease. Lung (2011) 0.77
Chronic obstructive pulmonary disease (COPD) assessment test scores corresponding to modified Medical Research Council grades among COPD patients. Korean J Intern Med (2015) 0.77
Relationship between sniff nasal inspiratory pressure and BODE index in patients with COPD. Lung (2014) 0.76
Prognostic assessment of patients with COPD. Lancet (2009) 0.76
COPD: it is time to change! Int J Chron Obstruct Pulmon Dis (2015) 0.75
Prognostic assessment in COPD without lung function: the B-AE-D indices. Eur Respir J (2016) 0.75
Influence of Lung Function and Sleep-disordered Breathing on All-Cause Mortality. A Community-based Study. Am J Respir Crit Care Med (2016) 0.75
ACP Journal Club. An updated BODE index and a simplified ADO index predicted 3-year mortality in COPD better than the original BODE index. Ann Intern Med (2010) 0.75
Sit-to-stand test and 6-min walking test correlation in patients with chronic obstructive pulmonary disease. Ann Thorac Med (2015) 0.75
Modified BODE indexes: Agreement between multidimensional prognostic systems based on oxygen uptake. Int J Chron Obstruct Pulmon Dis (2010) 0.75
Prognostic variables and scores identifying the last year of life in COPD: a systematic review protocol. BMJ Open (2016) 0.75
HOLD study (Home care Obstructive Lung Disease): natural history of patients with advanced COPD. BMC Palliat Care (2016) 0.75
External validation of multidimensional prognostic indices (ADO, BODEx and DOSE) in a primary care international cohort (PROEPOC/COPD cohort). BMC Pulm Med (2016) 0.75
Which patients with advanced respiratory disease die in hospital? A 14-year population-based study of trends and associated factors. BMC Med (2017) 0.75
The 6-minute Walk Test as a COPD Stratification Tool: Insights From the COPD Biomarker Qualification Consortium. Am J Respir Crit Care Med (2016) 0.75
Lung and kidney: a dangerous liaison? A population-based cohort study in COPD patients in Italy. Int J Chron Obstruct Pulmon Dis (2017) 0.75
A combined pulmonary function and emphysema score prognostic index for staging in Chronic Obstructive Pulmonary Disease. PLoS One (2014) 0.75
Statins and morbidity and mortality in COPD in the COMIC study: a prospective COPD cohort study. BMJ Open Respir Res (2016) 0.75
Prognostic assessment of patients with COPD. Lancet (2009) 0.75
The PEARL score predicts 90-day readmission or death after hospitalisation for acute exacerbation of COPD. Thorax (2017) 0.75
Small airway dysfunction in smokers with stable ischemic heart disease. PLoS One (2017) 0.75
Impact of airflow limitation in chronic heart failure. Neth Heart J (2017) 0.75
Global strategy for the diagnosis, management, and prevention of chronic obstructive pulmonary disease: GOLD executive summary. Am J Respir Crit Care Med (2012) 22.96
Review: a gentle introduction to imputation of missing values. J Clin Epidemiol (2006) 8.87
Prognosis and prognostic research: validating a prognostic model. BMJ (2009) 6.54
Effect of intracranial pressure monitoring and targeted intensive care on functional outcome after severe head injury. Crit Care Med (2005) 5.85
Cognitive outcome after off-pump and on-pump coronary artery bypass graft surgery: a randomized trial. JAMA (2002) 5.06
An official American Thoracic Society/European Respiratory Society statement: key concepts and advances in pulmonary rehabilitation. Am J Respir Crit Care Med (2013) 4.49
Prognosis and prognostic research: Developing a prognostic model. BMJ (2009) 4.38
Transparent Reporting of a multivariable prediction model for Individual Prognosis or Diagnosis (TRIPOD): the TRIPOD statement. Ann Intern Med (2015) 4.32
Predicting bacterial cause in infectious conjunctivitis: cohort study on informativeness of combinations of signs and symptoms. BMJ (2004) 4.11
Development and validation of MIX: comprehensive free software for meta-analysis of causal research data. BMC Med Res Methodol (2006) 3.67
Accuracy of Ottawa ankle rules to exclude fractures of the ankle and mid-foot: systematic review. BMJ (2003) 3.34
Cranberries vs antibiotics to prevent urinary tract infections: a randomized double-blind noninferiority trial in premenopausal women. Arch Intern Med (2011) 3.33
APOBEC3 proteins inhibit human LINE-1 retrotransposition. J Biol Chem (2006) 3.30
Imputation of missing values is superior to complete case analysis and the missing-indicator method in multivariable diagnostic research: a clinical example. J Clin Epidemiol (2006) 3.28
Regular physical activity modifies smoking-related lung function decline and reduces risk of chronic obstructive pulmonary disease: a population-based cohort study. Am J Respir Crit Care Med (2006) 3.27
The Wells rule does not adequately rule out deep venous thrombosis in primary care patients. Ann Intern Med (2005) 3.21
Lactobacilli vs antibiotics to prevent urinary tract infections: a randomized, double-blind, noninferiority trial in postmenopausal women. Arch Intern Med (2012) 3.14
Prognosis Research Strategy (PROGRESS) 3: prognostic model research. PLoS Med (2013) 3.13
Effectiveness of electronic fetal monitoring with additional ST analysis in vertex singleton pregnancies at >36 weeks of gestation: an individual participant data metaanalysis. Am J Obstet Gynecol (2013) 3.10
Identification and prospective validation of clinically relevant chronic obstructive pulmonary disease (COPD) subtypes. Thorax (2010) 3.06
Dealing with missing outcome data in randomized trials and observational studies. Am J Epidemiol (2011) 3.03
Immortal time bias in critical care research: application of time-varying Cox regression for observational cohort studies. Crit Care Med (2009) 2.96
Communicating accuracy of tests to general practitioners: a controlled study. BMJ (2002) 2.83
Urine neutrophil gelatinase-associated lipocalin moderately predicts acute kidney injury in critically ill adults. J Am Soc Nephrol (2009) 2.77
Exposure to substances in the workplace and new-onset asthma: an international prospective population-based study (ECRHS-II). Lancet (2007) 2.74
Transparent Reporting of a multivariable prediction model for Individual Prognosis or Diagnosis (TRIPOD): explanation and elaboration. Ann Intern Med (2015) 2.71
Antibiotics for exacerbations of chronic obstructive pulmonary disease. Cochrane Database Syst Rev (2012) 2.70
Improving health through policies that promote active travel: a review of evidence to support integrated health impact assessment. Environ Int (2011) 2.68
A randomized trial of ways to describe test accuracy: the effect on physicians' post-test probability estimates. Ann Intern Med (2005) 2.68
Risk factors for chronic obstructive pulmonary disease in a European cohort of young adults. Am J Respir Crit Care Med (2010) 2.66
Health-related quality of life and mortality in male patients with chronic obstructive pulmonary disease. Am J Respir Crit Care Med (2002) 2.63
Clinical decision rules for excluding pulmonary embolism: a meta-analysis. Ann Intern Med (2011) 2.57
Anti-tissue antibodies are related to lung function in chronic obstructive pulmonary disease. Am J Respir Crit Care Med (2010) 2.45
Meta-analysis of MR imaging in the diagnosis of breast lesions. Radiology (2007) 2.43
Safe exclusion of pulmonary embolism using the Wells rule and qualitative D-dimer testing in primary care: prospective cohort study. BMJ (2012) 2.38
Missing covariate data in medical research: to impute is better than to ignore. J Clin Epidemiol (2010) 2.37
Health changes in fishermen 2 years after clean-up of the Prestige oil spill. Ann Intern Med (2010) 2.36
Comparing the diagnostic performance of 2 clinical decision rules to rule out deep vein thrombosis in primary care patients. Ann Fam Med (2011) 2.34
Incidence of chronic obstructive pulmonary disease in a cohort of young adults according to the presence of chronic cough and phlegm. Am J Respir Crit Care Med (2006) 2.33
Prognosis research strategy (PROGRESS) 1: a framework for researching clinical outcomes. BMJ (2013) 2.31
Incidence and predictors of short- and long-term complications in pacemaker therapy: the FOLLOWPACE study. Heart Rhythm (2011) 2.29
Internal and external validation of predictive models: a simulation study of bias and precision in small samples. J Clin Epidemiol (2003) 2.28
Physical activity and bronchial hyperresponsiveness: European Community Respiratory Health Survey II. Thorax (2006) 2.27
Reporting and methods in clinical prediction research: a systematic review. PLoS Med (2012) 2.26
Development and validation of a prediction model with missing predictor data: a practical approach. J Clin Epidemiol (2009) 2.24
Prognosis Research Strategy (PROGRESS) 2: prognostic factor research. PLoS Med (2013) 2.23
The treatment of acute infectious conjunctivitis with fusidic acid: a randomised controlled trial. Br J Gen Pract (2005) 2.20
Safely ruling out deep venous thrombosis in primary care. Ann Intern Med (2009) 2.16
The effect of outpatient preoperative evaluation of hospital inpatients on cancellation of surgery and length of hospital stay. Anesth Analg (2002) 2.16
Risk prediction models for postoperative delirium: a systematic review and meta-analysis. J Am Geriatr Soc (2014) 2.16
Cerebral hemodynamic responses to blood pressure manipulation in severely head-injured patients in the presence or absence of intracranial hypertension. Anesth Analg (2004) 2.10
Diagnostic impact of signs and symptoms in acute infectious conjunctivitis: systematic literature search. BMJ (2003) 2.09
The minimal important difference of the hospital anxiety and depression scale in patients with chronic obstructive pulmonary disease. Health Qual Life Outcomes (2008) 2.07
Incidence of intraoperative hypotension as a function of the chosen definition: literature definitions applied to a retrospective cohort using automated data collection. Anesthesiology (2007) 2.05
Occupational risk factors and asthma among health care professionals. Am J Respir Crit Care Med (2006) 2.04
Predictive factors for postherpetic neuralgia. Clin J Pain (2013) 2.03
External validity of risk models: Use of benchmark values to disentangle a case-mix effect from incorrect coefficients. Am J Epidemiol (2010) 2.03
COPD prognosis in relation to diagnostic criteria for airflow obstruction in smokers. Eur Respir J (2013) 2.02
Smoking cessation, lung function, and weight gain: a follow-up study. Lancet (2005) 2.01
Accuracy of the Wells clinical prediction rule for pulmonary embolism in older ambulatory adults. J Am Geriatr Soc (2014) 1.98
The PINE study of epidural steroids and local anaesthetics to prevent postherpetic neuralgia: a randomised controlled trial. Lancet (2006) 1.95
Intraoperative hypotension and 1-year mortality after noncardiac surgery. Anesthesiology (2009) 1.85
Improvements in risk stratification for the occurrence of cardiovascular disease by imaging subclinical atherosclerosis: a systematic review. Heart (2011) 1.80
The use of household cleaning sprays and adult asthma: an international longitudinal study. Am J Respir Crit Care Med (2007) 1.79
Limited value of patient history and physical examination in diagnosing deep vein thrombosis in primary care. Fam Pract (2005) 1.73
Influence of catastrophizing on treatment outcome in patients with nonspecific low back pain: a systematic review. Spine (Phila Pa 1976) (2014) 1.72
Validation of the fatigue severity scale in a Swiss cohort. Sleep (2008) 1.72
Prognosis research strategy (PROGRESS) 4: stratified medicine research. BMJ (2013) 1.71
Fast-track anesthesia and cardiac surgery: a retrospective cohort study of 7989 patients. Anesth Analg (2009) 1.68
Cardiotocography plus ST analysis of fetal electrocardiogram compared with cardiotocography only for intrapartum monitoring: a randomized controlled trial. Obstet Gynecol (2010) 1.68
Clinical value of diagnostic instruments for ruling out acute coronary syndrome in patients with chest pain: a systematic review. Emerg Med J (2010) 1.67
A decision aid to rule out pneumonia and reduce unnecessary prescriptions of antibiotics in primary care patients with cough and fever. BMC Med (2011) 1.66
Multivariable adjustments counteract spectrum and test review bias in accuracy studies. J Clin Epidemiol (2008) 1.65
The diagnostic value of history and physical examination for COPD in suspected or known cases: a systematic review. Fam Pract (2009) 1.62
Microbiome diversity in the bronchial tracts of patients with chronic obstructive pulmonary disease. J Clin Microbiol (2012) 1.61
Combined magnetic resonance imaging and magnetic resonance spectroscopy imaging in the diagnosis of prostate cancer: a systematic review and meta-analysis. Eur Urol (2008) 1.60
Bias in sensitivity and specificity caused by data-driven selection of optimal cutoff values: mechanisms, magnitude, and solutions. Clin Chem (2008) 1.58
Should scoring rules be based on odds ratios or regression coefficients? J Clin Epidemiol (2002) 1.58
Radiologic criteria for the diagnosis of spinal stenosis: results of a Delphi survey. Radiology (2012) 1.55
Accuracy of mean arterial pressure and blood pressure measurements in predicting pre-eclampsia: systematic review and meta-analysis. BMJ (2008) 1.53
Epidemiology of frequent attenders: a 3-year historic cohort study comparing attendance, morbidity and prescriptions of one-year and persistent frequent attenders. BMC Public Health (2009) 1.52
Prediction models for risk of developing type 2 diabetes: systematic literature search and independent external validation study. BMJ (2012) 1.52
Work related asthma. A causal analysis controlling the healthy worker effect. Occup Environ Med (2013) 1.51
Beyond diagnostic accuracy: the clinical utility of diagnostic tests. Clin Chem (2012) 1.49
Risk factors for new-onset cat sensitization among adults: a population-based international cohort study. J Allergy Clin Immunol (2011) 1.44
Sample sizes of studies on diagnostic accuracy: literature survey. BMJ (2006) 1.44
Children with meningeal signs: predicting who needs empiric antibiotic treatment. Arch Pediatr Adolesc Med (2002) 1.44
Ruling out deep venous thrombosis in primary care. A simple diagnostic algorithm including D-dimer testing. Thromb Haemost (2005) 1.43
Unpredictable bias when using the missing indicator method or complete case analysis for missing confounder values: an empirical example. J Clin Epidemiol (2010) 1.42