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Qian Y, Li Y, Ji J, Wang Z. Identification of two hub genes and miRNA‑mRNA interactions in chronic obstructive pulmonary disease (COPD) plasma. J Asthma 2024:1-10. [PMID: 38411985 DOI: 10.1080/02770903.2024.2324847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Accepted: 02/25/2024] [Indexed: 02/28/2024]
Abstract
BACKGROUND We aimed to identify hub genes in chronic obstructive pulmonary disease (COPD) plasma through the exploration of a putative miRNA-mRNA regulatory network. METHODS Three datasets (GSE24709, GSE102915, GSE136390) were utilized to discern differentially expressed miRNAs (DEMs) between COPD and normal plasma. miRNET was employed to predict the potential targets of DEMs. Subsequent GO and KEGG analyses were conducted using DAVID. For the construction of the protein-protein interaction (PPI) network and screening of hub genes, STRING and Cytoscape were employed. The expression validation was assessed through GSE56768. RESULTS The results revealed 395 genes targeted by up-regulated DEMs and 234 genes targeted by down-regulated DEMs. The target genes exhibited significant enrichment in the PI3K-Akt signaling pathway and the p53 signaling pathway. Through the validation of hub genes' expression, we proposed two potential miRNA-mRNA interactions: miR-126-5p/miR-495-3p/miR-193b-3p - YWHAZ and miR-937-5p/miR-183-5p/miR-34c-5p/miR-98-5p/miR-525-3p/miR-215-5p - ACTB. CONCLUSIONS In conclusion, our study posits potential miRNA-mRNA interactions in COPD by analyzing datasets from public databases, contributing valuable insights into the understanding of COPD pathogenesis and potential therapeutic avenues.
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Affiliation(s)
- Yuanyuan Qian
- Department of Research and Development, Jilin Ruiguo Technology Co., Ltd, Changchun, China
| | - Yifei Li
- Department of Research and Development, Jilin Ruiguo Technology Co., Ltd, Changchun, China
| | - Jiancheng Ji
- Department of Research and Development, Jilin Ruiguo Technology Co., Ltd, Changchun, China
| | - Zhaojunli Wang
- Department of Research and Development, Jilin Ruiguo Technology Co., Ltd, Changchun, China
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Saeed MS, Denoncourt CM, Chao IA, Schortmann S, Nassikas NJ, Synn AJ, Koutrakis P, Coull BA, Kang CM, Wolfson JM, Ferguson ST, Rebuli ME, Jaspers I, Liu JP, Greco KF, Phipatanakul W, Rice MB. Protocol for the air purification for eosinophilic COPD study (APECS): a randomised controlled trial of home air filtration by HEPA. BMJ Open 2024; 14:e074655. [PMID: 38238060 PMCID: PMC10806745 DOI: 10.1136/bmjopen-2023-074655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 11/30/2023] [Indexed: 01/23/2024] Open
Abstract
INTRODUCTION Exposure to particulate matter (PM) pollution has been associated with lower lung function in adults with chronic obstructive pulmonary disease (COPD). Patients with eosinophilic COPD have been found to have higher levels of airway inflammation, greater responsiveness to anti-inflammatory steroid inhalers and a greater lung function response to PM pollution exposure compared with those with lower eosinophil levels. This study will evaluate if reducing home PM exposure by high-efficiency particulate air (HEPA) air filtration improves respiratory health in eosinophilic COPD. METHODS AND ANALYSIS The Air Purification for Eosinophilic COPD Study (APECS) is a double-blinded randomised placebo-controlled trial that will enrol 160 participants with eosinophilic COPD living in the area of Boston, Massachusetts. Real and sham air purifiers will be placed in the bedroom and living rooms of the participants in the intervention and control group, respectively, for 12 months. The primary trial outcome will be the change in forced expiratory volume in 1 s (FEV1). Lung function will be assessed twice preintervention and three times during the intervention phase (at 7 days, 6 months and 12 months postrandomisation). Secondary trial outcomes include changes in (1) health status by St. George's Respiratory Questionnaire; (2) respiratory symptoms by Breathlessness, Cough and Sputum Scale (BCSS); and (3) 6-Minute Walk Test (6MWT). Inflammatory mediators were measured in the nasal epithelial lining fluid (NELF). Indoor PM will be measured in the home for the week preceding each study visit. The data will be analysed to contrast changes in outcomes in the intervention and control groups using a repeated measures framework. ETHICS AND DISSEMINATION Ethical approval was obtained from the Institutional Review Board of Beth Israel Deaconess Medical Centre (protocol #2019P0001129). The results of the APECS trial will be presented at scientific conferences and published in peer-reviewed journals. TRIAL REGISTRATION NCT04252235. Version: October 2023.
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Affiliation(s)
- Muhammad S Saeed
- Department of Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
| | - Cailey M Denoncourt
- Department of Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
| | - Isabella A Chao
- Department of Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
| | - Sophia Schortmann
- Department of Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
| | - Nicholas J Nassikas
- Department of Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
| | - Andrew J Synn
- Department of Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
| | - Petros Koutrakis
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Brent A Coull
- Department of Biostatistics, Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Choong-Min Kang
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Jack M Wolfson
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Stephen T Ferguson
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Meghan E Rebuli
- Department of Pediatrics and Curriculum in Toxicology and Environmental Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Ilona Jaspers
- Department of Pediatrics and Curriculum in Toxicology and Environmental Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Jessica P Liu
- Institutional Center of Clinical and Translational Research (ICCTR), Biostatistics and Research Design Center (BARD), Boston Children's Hospital, Boston, Massachusetts, USA
| | - Kimberly F Greco
- Institutional Center of Clinical and Translational Research (ICCTR), Biostatistics and Research Design Center (BARD), Boston Children's Hospital, Boston, Massachusetts, USA
| | - Wanda Phipatanakul
- Division of Allergy and Immunology, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Mary B Rice
- Department of Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
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Robert P, Lévesque B, Bourbeau J, Ahmad Khan F, Boulet LP, Dubé MA, Proulx JF, Ayotte P. Respiratory health and its determinants among Nunavimmiut: results from the Qanuilirpitaa? 2017 Nunavik Health Survey. CANADIAN JOURNAL OF PUBLIC HEALTH = REVUE CANADIENNE DE SANTE PUBLIQUE 2024; 115:136-151. [PMID: 36624337 PMCID: PMC10830964 DOI: 10.17269/s41997-022-00722-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Accepted: 11/09/2022] [Indexed: 01/11/2023]
Abstract
OBJECTIVES Respiratory diseases are the leading cause of hospitalization in Nunavik (northern Québec, Canada) and contribute to disparities in life expectancy with the rest of Canada. As part of Qanuilirpitaa? 2017, a cross-sectional population-based health survey, we sought to describe the prevalence of respiratory health indicators, including the first estimate of airway obstruction based on spirometry in an Inuit population, and explore their associated characteristics. METHODS We analyzed data from 1296 participants aged 16 years and older, using multivariate logistic regression to assess characteristics associated with spirometry-determined airway obstruction and self-reported respiratory symptoms, i.e., wheezing in the last year and chronic cough during at least 3 months. RESULTS In this relatively young population (83% aged 16 to 54), the prevalences of wheezing, chronic cough, and airway obstruction were, respectively, 27% (95% CI 24-30), 21% (18-23), and 17% (14-20). These estimates are prone to biases due to the relatively low participation rate (about 37%). The most consistent associations were with smoking (≥ 15 pack-years; odds ratio [OR] 3.13, 3.39, and 2.86 for the three indicators, respectively) and food security (OR 0.55 with wheezing and OR 0.26 with chronic cough), as defined in the Household Food Security Survey Module. Wheezing was also associated with allergic sensitization to dogs (2.60) and obesity (2.18). Chronic cough was associated with respiratory infections during childhood (2.12), housing in need of major repairs (1.72), and housing crowding (1.50), and was negatively associated with participation to traditional activities (0.62) and going on the land (0.64). Airway obstruction was associated with being underweight (3.84) and post-secondary education (0.40). Among young adults and women, wheezing was also associated with any inhalation of solvents for recreational purposes during their lifetime (2.62 and 1.56, respectively), while airway obstruction was associated with regular marijuana use (2.22 and 1.84, respectively). CONCLUSION Smoking and food insecurity are both highly prevalent and strongly associated with respiratory symptoms in Nunavik. Together with essential smoking prevention and cessation programs, our findings suggest that solving food security and housing crises, improving socioeconomic conditions, and promoting traditional lifestyle may improve respiratory health in Nunavik.
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Affiliation(s)
- Philippe Robert
- Institut national de santé publique du Québec, Quebec City, QC, Canada
- Département de médecine sociale et préventive, Université Laval, Quebec City, QC, Canada
- Axe santé des populations et pratiques optimales en santé, Centre de recherche du CHU de Québec, Quebec City, QC, Canada
| | - Benoît Lévesque
- Institut national de santé publique du Québec, Quebec City, QC, Canada
- Département de médecine sociale et préventive, Université Laval, Quebec City, QC, Canada
- Axe santé des populations et pratiques optimales en santé, Centre de recherche du CHU de Québec, Quebec City, QC, Canada
| | - Jean Bourbeau
- Respiratory Epidemiology and Clinical Research Unit, Department of Medicine, McGill University, Montreal, QC, Canada
- Research Institute, McGill University Health Centre, Montreal Chest Institute, Montreal, QC, Canada
| | - Faiz Ahmad Khan
- Respiratory Epidemiology and Clinical Research Unit, Department of Medicine, McGill University, Montreal, QC, Canada
- Research Institute, McGill University Health Centre, Montreal Chest Institute, Montreal, QC, Canada
- McGill International TB Centre, Montreal, QC, Canada
| | - Louis-Philippe Boulet
- Institut universitaire de cardiologie et de pneumologie de Québec, Quebec City, QC, Canada
- Département de médecine, Université Laval, Quebec City, QC, Canada
| | - Marc-André Dubé
- Institut national de santé publique du Québec, Quebec City, QC, Canada
| | - Jean-François Proulx
- Department of Public Health, Nunavik Regional Board of Health and Social Services, Kuujjuaq, QC, Canada
| | - Pierre Ayotte
- Institut national de santé publique du Québec, Quebec City, QC, Canada.
- Département de médecine sociale et préventive, Université Laval, Quebec City, QC, Canada.
- Axe santé des populations et pratiques optimales en santé, Centre de recherche du CHU de Québec, Quebec City, QC, Canada.
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Tomasi SE, Fechter-Leggett ED, Materna BL, Meiman JG, Nett RJ, Cummings KJ. Impact of Epidemic Intelligence Service Training in Occupational Respiratory Epidemiology. ATS Sch 2023; 4:441-463. [PMID: 38196681 PMCID: PMC10773279 DOI: 10.34197/ats-scholar.2023-0062ps] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 08/03/2023] [Indexed: 01/11/2024] Open
Abstract
The Centers for Disease Control and Prevention's Epidemic Intelligence Service (EIS) is a fellowship in applied epidemiology for physicians, veterinarians, nurses, scientists, and other health professionals. Each EIS fellow is assigned to a position at a federal, state, or local site for 2 years of on-the-job training in outbreak investigation, epidemiologic research, surveillance system evaluation, and scientific communication. Although the original focus of the program on the control of infectious diseases remains salient, positions are available for training in other areas of public health, including occupational respiratory disease. In this Perspective, we describe the EIS program, highlight three positions (one federal and two state-based) that provide training in occupational respiratory epidemiology, and summarize trainees' experiences in these positions over a 30-year period. For early-career health professionals interested in understanding and preventing occupational respiratory hazards and diseases, EIS offers a unique career development opportunity.
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Affiliation(s)
- Suzanne E. Tomasi
- Respiratory Health Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, West Virginia
| | - Ethan D. Fechter-Leggett
- Respiratory Health Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, West Virginia
| | - Barbara L. Materna
- Center for Healthy Communities, California Department of Public Health, Richmond, California
| | | | - Randall J. Nett
- Arboviral Diseases Branch, Centers for Disease Control and Prevention, Fort Collins, Colorado
| | - Kristin J. Cummings
- Center for Healthy Communities, California Department of Public Health, Richmond, California
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Uddin MM, Mir T, Briasoulis A, Akintoye E, Adegbala O, Shafi I, Qureshi WT, Afonso LC. Clinical outcomes and 30-day readmissions associated with high-output heart failure. Hellenic J Cardiol 2023; 69:24-30. [PMID: 36273803 DOI: 10.1016/j.hjc.2022.10.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 10/16/2022] [Accepted: 10/18/2022] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND High-output heart failure (HOHF) is an underdiagnosed type of heart failure (HF) characterized by low systemic vascular resistance and high cardiac output. OBJECTIVE This study sought to characterize the causes, mortality, and readmissions related to HOHF within the United States. METHODS Data were collected from the Agency for Healthcare Research and Quality's Healthcare Cost and Utilization Project (HCUP) National Readmissions Database (NRD) from January 1, 2017, to November 30, 2019. We used the International Classification of Diseases, 10th revision (ICD-10), diagnostic codes to identify encounters with HOHF and heart failure with reduced ejection fraction (HFrEF). RESULTS Of the total 5,080,985 encounters with HF, 3,897 hospitalizations (mean age 62.5 ± 17.9 years, 56.5% females) with HOHF and 5,077,088 hospitalizations with HFrEF were recorded. The most commonly associated putative etiologies of HOHF included pulmonary disease (19.8%), morbid obesity (9.9%), sepsis (9.6%), cirrhosis (8.9%), myelodysplastic syndrome (MDS) (7.9%), hyperthyroidism (5.5%), and sickle cell disease (3.3%). There was no significant difference in mortality rates [4.3% vs. 5.2%; odds ratio (OR) 0.9, 95% confidence interval (CI) 0.7-1.2] between HOHF and HFrEF. However, the 30-day readmission rate for HOHF was significantly lower than that for HFrEF (5.7% vs. 21.2%; OR 0.39, 95% CI 0.30-0.51). Cardiovascular (39.9%) followed by hematological (20.6%) complications accounted for the majority of 30-day readmissions in the HOHF group. CONCLUSIONS HOHF is an infrequently reported cardiovascular complication associated with noncardiovascular disorders and is encountered in 0.07% of all encounters with HF. Although comparable in-hospital mortality between studied cohorts was observed, raising awareness and timely recognition of this entity are warranted.
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Affiliation(s)
- Mohammed M Uddin
- Internal Medicine Detroit Medical Center, Wayne State University, Detroit, USA
| | - Tanveer Mir
- Internal Medicine Detroit Medical Center, Wayne State University, Detroit, USA
| | - Alexandros Briasoulis
- Cardiovascular Medicine. National Kapodestrian, University of Athens, Athens, Greece.
| | | | - Oluwole Adegbala
- Cardiovascular Medicine. Detroit Medical Center, Wayne State University, Detroit, USA
| | - Irfan Shafi
- Cardiovascular Medicine. Detroit Medical Center, Wayne State University, Detroit, USA
| | - Waqas T Qureshi
- Division of Cardiology, University of Massachusetts School of Medicine, Worcester, USA
| | - Luis C Afonso
- Cardiovascular Medicine. Detroit Medical Center, Wayne State University, Detroit, USA
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Wang T, Jia Z, Li S, Li Y, Yu T, Lu T, Shi Y. The association between leukocyte telomere length and chronic obstructive pulmonary disease is partially mediated by inflammation: a meta-analysis and population-based mediation study. BMC Pulm Med 2022; 22:320. [PMID: 35987624 PMCID: PMC9392327 DOI: 10.1186/s12890-022-02114-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 08/10/2022] [Indexed: 11/27/2022] Open
Abstract
Background Chronic obstructive pulmonary disease (COPD) is one of the major health issues worldwide. Pathophysiological changes in COPD are mainly reflected in the deterioration of lung function with aging. Methods Considering that telomere length is a hallmark of biological aging, we first performed a meta-analysis to summarize the current knowledge about the relationship between telomere length and COPD and then employed individual-level data from the continuous National Health and Nutrition Examination Survey (NHANES) to investigate whether telomere length could reflect accelerated aging in COPD and serve as an independent predictor. A mediation study was further performed to examine whether the association between telomeres and COPD could be mediated by inflammation, as one of the most important etiologies and characteristics of COPD. Results The four studies included in our meta-analysis were with high heterogeneity (I2 = 95.7%, Phet < 0.001), and the pooled relative risk for COPD comparing the shortest tertile versus the longest tertile was 4.06 (95% CI = 1.38 to 11.96). Of the 6,378 subjects in the individual-level data analyses using NHANES, 455 were diagnosed with COPD, and multivariable-adjusted logistic regression also indicated that short telomere length was associated with COPD. Consistently, cubic regression spline analyses showed that long telomeres exhibited a significant association with a decreased risk of COPD. In the subsequent mediation analyses, C-reactive protein concentration, white blood cells count and blood neutrophil count, as inflammatory biomarkers, showed a significant indirect effect on the relationship between telomere length and COPD. Conclusion Accelerated aging in COPD could be characterized by excessive telomere shortening, and inflammatory response might be involved in the underlying mechanisms of COPD pathogenesis promoted by short telomere length. Telomere length measurement may facilitate clinical translational research and targeted therapy of COPD. Supplementary Information The online version contains supplementary material available at 10.1186/s12890-022-02114-8.
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Guo X, Men F, Han X, Wang Z. The efficacy of continuous nursing care for patients with chronic obstructive pulmonary disease: A randomized controlled trial protocol. Medicine (Baltimore) 2021; 100:e23974. [PMID: 33466137 PMCID: PMC7808547 DOI: 10.1097/md.0000000000023974] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Accepted: 12/02/2020] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND: Chronic obstructive pulmonary disease (COPD) is a kind of disease that can be prevented and treated. It is characterized by the progressive limitation of airflow and is one of the most familiar human health barriers worldwide. For our program, the objective is to evaluate the impact of continuous care on the life quality of the COPD patients. METHODS: This study will be implemented from June 2021 to March 2022 at Shandong Chest Hospital. The experiment was granted through the Research Ethics Committee of Shandong Chest Hospital (0029-4651). The criteria for inclusion involves: (1).. patients diagnosed with COPD; (2).. patients with expectorant, chronic cough, dyspnea, and other symptoms; (3).. patients who volunteered to take part in our study; (4).. have the cognitive ability to take part in interviews and fill in questionnaires. The criteria for exclusion contains: (1).. patients with unstable physical conditions, for instance, congestive heart failure, recent myocardial infarction, acute cerebrovascular diseases, and malignant tumor; (2).. suffering from bronchial asthma or bronchiectasis; (3).. patients with serious physical dysfunction; (4).. patients who are unwilling to offer the informed consent to take part in this experiment. For our research, the result measure is St. George's Respiratory Questionnaire (SGRQ). RESULTS: Table 1 reflects the comparison results of 2 groups after the intervention. CONCLUSION: The continuous care on the basis of the theory of Information, Knowledge, Attitude, and Practice (IKAP) can promote the improvement of life quality in the COPD patients. Trial registration number: researchregistry 6266.
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Affiliation(s)
- Xue Guo
- Department of Respiratory and Critical Care Medicine
| | | | | | - Zhenying Wang
- Respiratory Care Unit, Shandong Chest Hospital, Shandong, 250013, China
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Silver SR, Alarcon WA, Li J. Incident chronic obstructive pulmonary disease associated with occupation, industry, and workplace exposures in the Health and Retirement Study. Am J Ind Med 2021; 64:26-38. [PMID: 33124723 DOI: 10.1002/ajim.23196] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 09/29/2020] [Accepted: 10/02/2020] [Indexed: 11/11/2022]
Abstract
BACKGROUND Chronic health effects from accumulated occupational exposures manifest as the workforce ages. The Health and Retirement Study (HRS), a panel survey of U.S. adults nearing/in retirement, allows assessment of associations among industry and occupation (I/O), workplace exposures, and incident chronic obstructive pulmonary disease (COPD). METHODS The study population comprised respondents from the 1992 HRS cohort employed in 1972 or later and not diagnosed with COPD as of initial interview. We examined associations with incident COPD through 2016 and: (1) broad and selected detailed I/O, (2) workplace exposures, and (3) exposures within I/O. Given the cohort's baseline age (50-62), we calculated subhazard ratios (SHRs) for COPD accounting for competing risk of death. RESULTS SHRs for COPD were significantly elevated for several industries: mining; blast furnaces, steelworks, rolling and finishing mills; groceries and related products; and automotive repair shops. Occupations with significantly elevated SHRs were maids and housemen; farmworkers; vehicle/mobile equipment mechanics and repair workers; material moving equipment operators; and nonconstruction laborers. Significantly elevated COPD SHRs were observed for specific I/O-exposure pairs: blast furnace/steelworks/rolling/finishing mills and asbestos; automotive repair shops and aerosol paints; farmworkers and pesticide exposures; and both material moving equipment operators and nonconstruction laborers exposed to dust and ash. CONCLUSIONS Certain jobs and occupational exposures are associated with increased risk for developing COPD in late preretirement and during retirement. Given the disability and economic costs of COPD, these findings support focusing exposure prevention and medical monitoring resources on groups of workers at increased risk.
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Affiliation(s)
- Sharon R. Silver
- Division of Field Studies and Engineering National Institute for Occupational Safety and Health Cincinnati Ohio USA
| | - Walter A. Alarcon
- Division of Field Studies and Engineering National Institute for Occupational Safety and Health Cincinnati Ohio USA
| | - Jia Li
- Division of Field Studies and Engineering National Institute for Occupational Safety and Health Cincinnati Ohio USA
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9
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Vowles M, Kerry R, Ingram B, Mason L. Investigation of the Environmental and Socio-Economic Characteristics of Counties with a High Asthma Burden to Focus Asthma Action in Utah. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17145251. [PMID: 32708146 PMCID: PMC7400464 DOI: 10.3390/ijerph17145251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 07/07/2020] [Accepted: 07/16/2020] [Indexed: 11/17/2022]
Abstract
Rising adult asthma prevalence (AAP) rates and asthma emergency room (AER) visits constitute a large burden on public health in Utah (UT), a high-altitude state in the Great Basin Desert, USA. This warrants an investigation of the characteristics of the counties with the highest asthma burden within UT to improve allocation of health resources and for planning. The relations between several predictor environmental, health behavior and socio-economic variables and two health outcome variables, AAP and AER visits, were investigated for UT’s 29 counties. Non-parametric statistical comparison tests, correlation and linear regression analysis were used to determine the factors significantly associated with AER visits and AAP. Regression kriging with Utah small area data (USAD) as well as socio-economic and pollution data enabled local Moran’s I cluster analysis and the investigation of moving correlations between health outcomes and risk factors. Results showed the importance of desert/mining dust and socio-economic status as AAP and AER visits were greatest in the south of the state, highlighting a marked north–south divide in terms of these factors within the state. USAD investigations also showed marked differences in pollution and socio-economic status associated with AAP within the most populous northern counties. Policies and interventions need to address socio-economic inequalities within counties and between the north and south of the state. Fine (PM2.5) and coarse (PM10) particulate matter monitors should be installed in towns in central and southern UT to monitor air quality as these are sparse, but in the summer, air quality can be worse here. Further research into spatiotemporal variation in air quality within UT is needed to inform public health interventions such as expanding clean fuel programs and targeted land-use policies. Efforts are also needed to examine barriers to routine asthma care.
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Affiliation(s)
- Maureen Vowles
- Department of Public Health and Policy, University of Liverpool, Liverpool L69 3GB, UK
- Correspondence:
| | - Ruth Kerry
- Department of Geography, Brigham Young University, Provo, UT 84602, USA;
| | - Ben Ingram
- Faculty of Engineering, Universidad de Talca, Curicó 3460000, Chile;
| | - Linda Mason
- Liverpool School of Tropical Medicine, Liverpool L3 5QA, UK;
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Urteaga I, McKillop M, Elhadad N. Learning endometriosis phenotypes from patient-generated data. NPJ Digit Med 2020; 3:88. [PMID: 32596513 PMCID: PMC7314826 DOI: 10.1038/s41746-020-0292-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 05/26/2020] [Indexed: 12/19/2022] Open
Abstract
Endometriosis is a systemic and chronic condition in women of childbearing age, yet a highly enigmatic disease with unresolved questions: there are no known biomarkers, nor established clinical stages. We here investigate the use of patient-generated health data and data-driven phenotyping to characterize endometriosis patient subtypes, based on their reported signs and symptoms. We aim at unsupervised learning of endometriosis phenotypes using self-tracking data from personal smartphones. We leverage data from an observational research study of over 4000 women with endometriosis that track their condition over more than 2 years. We extend a classical mixed-membership model to accommodate the idiosyncrasies of the data at hand, i.e., the multimodality and uncertainty of the self-tracked variables. The proposed method, by jointly modeling a wide range of observations (i.e., participant symptoms, quality of life, treatments), identifies clinically relevant endometriosis subtypes. Experiments show that our method is robust to different hyperparameter choices and the biases of self-tracking data (e.g., the wide variations in tracking frequency among participants). With this work, we show the promise of unsupervised learning of endometriosis subtypes from self-tracked data, as learned phenotypes align well with what is already known about the disease, but also suggest new clinically actionable findings. More generally, we argue that a continued research effort on unsupervised phenotyping methods with patient-generated health data via new mobile and digital technologies will have significant impact on the study of enigmatic diseases in particular, and health in general.
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Affiliation(s)
- Iñigo Urteaga
- Department of Applied Physics and Applied Mathematics, Columbia University, New York, NY 10027 USA
- Data Science Institute, Columbia University, New York, NY 10027 USA
| | - Mollie McKillop
- Department of Biomedical Informatics, Columbia University, New York, NY 10032 USA
| | - Noémie Elhadad
- Data Science Institute, Columbia University, New York, NY 10027 USA
- Department of Biomedical Informatics, Columbia University, New York, NY 10032 USA
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11
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Li XF, Mao YM. Beta-blockers in COPD: A systematic review based on recent research. Life Sci 2020; 252:117649. [PMID: 32275936 DOI: 10.1016/j.lfs.2020.117649] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Revised: 04/01/2020] [Accepted: 04/04/2020] [Indexed: 01/14/2023]
Abstract
Chronic obstructive pulmonary disease (COPD) with cardiovascular complications is very common. Due to fear of exacerbating airway spasm, β-blockers are rarely used in such patients. Many observational studies suggest that β-blockers can reduce the disease progression and the risk of mortality in patients with COPD, but lack of confirmation from randomized controlled trials. This article reviews the application of β-blockers in patients with COPD based on the results of the latest published randomized controlled trials.
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Affiliation(s)
- Xiao-Fang Li
- Department of Respiratory Medicine, The First Affiliated Hospital/College of Clinical Medicine of Henan University of Science and Technology, Luoyang, Henan Province, China
| | - Yi-Min Mao
- Department of Respiratory Medicine, The First Affiliated Hospital/College of Clinical Medicine of Henan University of Science and Technology, Luoyang, Henan Province, China.
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12
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Djibo DA, Goldstein J, Ford JG. Prevalence of disability among adults with chronic obstructive pulmonary disease, Behavioral Risk Factor Surveillance System 2016-2017. PLoS One 2020; 15:e0229404. [PMID: 32106254 PMCID: PMC7046217 DOI: 10.1371/journal.pone.0229404] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Accepted: 02/05/2020] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND The prevalence of disabilities is rising steadily, reflecting an aging population and an increasing burden of chronic conditions affecting quality of life. There are scant national data on the prevalence of disability among individuals with chronic obstructive pulmonary disease (COPD). The main objective was to estimate the prevalence of common disabilities among US-based individuals diagnosed with COPD. METHODS Data from the BRFSS, a national telephone survey examining health-related behaviors in 2016-2017 were analyzed. The study population consisted of individuals with self-reported COPD (N = 38352 in 2016 and N = 35423 in 2017). The prevalence of disabilities in hearing, vision, cognition, mobility, and independent living were obtained and adjusted with sampling weights. Healthcare access measures were described by type of disability. RESULTS Mobility disability had the highest prevalence of 45.9 (44.8-47.0) % in 2016 and 48.4 (47.3-49.5) % in 2017 among respondents with COPD. The prevalence of disabilities was highest among those 45-64 years old, except for hearing and cognition. Hearing disabilities were most prevalent among males with COPD while cognitive and mobility disabilities were most prevalent among females with COPD. While differences in the prevalence of disabilities were observed, access to health care was similar by disability type and age group among respondents. CONCLUSION Contrary to expectation, the highest prevalence of disabilities was found not to be among those 65 years old and above. Further research is needed to explain this age-specific shift in the burden of disability, as long-term care planning and prevention support systems should be informed by the demographical patterns of disabilities among individuals with COPD.
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Affiliation(s)
- Djeneba Audrey Djibo
- Division of Research, Department of Medicine, Einstein Healthcare Network, Philadelphia, PA, United States of America
- * E-mail:
| | - Jessica Goldstein
- Division of Research, Department of Medicine, Einstein Healthcare Network, Philadelphia, PA, United States of America
| | - Jean G. Ford
- Department of Medicine, Einstein Healthcare Network, Philadelphia, PA, United States of America
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13
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Work Practices and Respiratory Health Status of Appalachian Coal Miners With Progressive Massive Fibrosis. J Occup Environ Med 2019; 60:e575-e581. [PMID: 30199471 DOI: 10.1097/jom.0000000000001443] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
OBJECTIVE The aim of this study was to characterize workplace practices and respiratory health among coal miners with large opacities consistent with progressive massive fibrosis (PMF) who received care at a federally funded black lung clinic network in Virginia. METHODS Participants were interviewed about their workplace practices and respiratory health. Medical records were reviewed. RESULTS Nineteen former coal miners were included. Miners reported cutting rock, working downwind of dust-generating equipment, nonadherence to mine ventilation plans (including dust controls), improper sampling of respirable coal mine dust exposures, working after developing respiratory illness, and suffering from debilitating respiratory symptoms. CONCLUSION Consistent themes of suboptimal workplace practices contributing to development of PMF emerged during the interviews. Some of the practices reported were unsafe and unacceptable. Further research is needed to determine the prevalence of these factors and how best to address them.
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14
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The relation of environmental tobacco smoke (ETS) to chronic bronchitis and mortality over two decades. Respir Med 2019; 154:34-39. [DOI: 10.1016/j.rmed.2019.06.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 06/07/2019] [Accepted: 06/08/2019] [Indexed: 01/15/2023]
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15
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Chen HY, Chauhan SP. Hypertension among women of reproductive age: Impact of 2017 American College of Cardiology/American Heart Association high blood pressure guideline. INTERNATIONAL JOURNAL CARDIOLOGY HYPERTENSION 2019; 1:100007. [PMID: 33447741 PMCID: PMC7803060 DOI: 10.1016/j.ijchy.2019.100007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 05/01/2019] [Indexed: 12/17/2022]
Abstract
Objective To estimate the prevalence of hypertension and antihypertensive medication recommended among U.S. reproductive-aged women according to the 2017 American College of Cardiology/American Heart Association (ACC/AHA) guideline as compared with the Seventh Report of the Joint National Committee on Prevention, Detection, Evaluation and Treatment of High Blood Pressure (JNC7) guideline and to identify factors associated with newly classified hypertensive women. Methods We analyzed data from the National Health and Nutrition Examination Survey 2005–2014. Hypertension was defined using blood pressure measurements and/or self-reported antihypertensive medication use. Multivariable Poisson regression models with robust error variance were conducted. Results Among 4,575 (weighted n = 40,194,602) non-pregnant women aged 20–44 years, the prevalence of hypertension was 16.5% using the 2017 guideline, and 7.8% based on the JNC7 guideline. Following the 2017 guideline, 8.6% would be recommended for antihypertensive medication, similar to 8.5% according to JNC7 guideline. Following the 2017 guideline, women with older age (35–44 years), obesity, and diabetes were more likely, while Hispanic women were less likely, to be newly classified as hypertensive. Conclusion Among reproductive-aged women, compared to JNC7 guidelines, the prevalence of hypertension increased by 112% following the 2017 guideline, but the percentage of women recommended for antihypertensive medication was similar. Hypertension occurred in about 16.5% of women of reproductive age. The prevalence of hypertension increased by 112% following the new guideline. Several factors associated with newly classified hypertension were identified.
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Affiliation(s)
- Han-Yang Chen
- Corresponding author. Han-Yang Chen, PhD, Department of Obstetrics, Gynecology, and Reproductive Sciences University of Texas Health Science Center at Houston, 6431 Fannin St, MSB 3.266, Houston, TX 77030, USA.
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16
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Doney B, Kurth L, Halldin C, Hale J, Frenk SM. Occupational exposure and airflow obstruction and self-reported COPD among ever-employed US adults using a COPD-job exposure matrix. Am J Ind Med 2019; 62:393-403. [PMID: 30775792 PMCID: PMC6661888 DOI: 10.1002/ajim.22958] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/23/2019] [Indexed: 11/11/2022]
Abstract
INTRODUCTION This study examined the association of spirometry-defined airflow obstruction and self-reported COPD defined as self-reported doctor diagnosed chronic bronchitis or emphysema, with occupational exposure among ever-employed US adults. METHODS Data were obtained from the National Health and Nutrition Examination Survey (NHANES) 2007-2008 to 2011-2012, a nationally representative study of the non-institutionalized civilian US population. Reported current and/or longest held job were used to create prevalence estimates and prevalence odds ratios (PORs) (adjusted for age, gender, race, and smoking status) for airflow obstruction and self-reported COPD by occupational exposure, determined using both NHANES participants' self-reported exposures and eight categories of COPD job exposure matrix (JEM) assigned exposures. RESULTS Significant PORs for airflow obstruction and self-reported COPD respectively were observed with self-reported exposure for ≥20 years to mineral dust (POR = 1.44; 95% confidence interval (CI) 1.13-1.85; POR = 1.69; 95% CI 1.17-2.43) and exhaust fumes (POR = 1.65; 95% CI 1.27-2.15; POR = 2.22; 95% CI 1.37-3.58). Airflow obstruction or self-reported COPD were also associated with COPD-JEM assigned high exposure to mineral dust, combined dust, diesel exhaust, vapor-gas, sensitizers, and overall exposure. CONCLUSION Airflow obstruction and self-reported COPD are associated with both self-reported and JEM-assigned exposures.
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Affiliation(s)
- Brent Doney
- Respiratory Health Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, West Virginia
| | - Laura Kurth
- Respiratory Health Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, West Virginia
| | - Cara Halldin
- Respiratory Health Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, West Virginia
| | - Janet Hale
- Respiratory Health Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, West Virginia
| | - Steven M. Frenk
- Division of Health and Nutrition Examination Surveys, National Center for Health Statistics, Centers for Disease Control and Prevention, Hyattsville, Maryland
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17
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Smooth Bayesian network model for the prediction of future high-cost patients with COPD. Int J Med Inform 2019; 126:147-155. [PMID: 31029256 DOI: 10.1016/j.ijmedinf.2019.03.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 02/28/2019] [Accepted: 03/26/2019] [Indexed: 02/05/2023]
Abstract
INTRODUCTION The clinical course of chronic obstructive pulmonary disease (COPD) is marked by acute exacerbation events that increase hospitalization rates and healthcare spending. The early identification of future high-cost patients with COPD may decrease healthcare spending by informing individualized interventions that prevent exacerbation events and decelerate disease progression. Existing studies of cost prediction of other chronic diseases have applied regression and machine-learning methods that cannot capture the complex causal relationships between COPD factors. Thus, the exploration of these factors through nonlinear, high-dimensional but explainable modeling is greatly needed. OBJECTIVES We aimed to develop a machine-learning model to identify future high-cost patients with COPD. Such a model should incorporate expert knowledge about causal relationships, and the method for estimating the model could provide more accurate predictions than other machine learning methods. METHODS We used the 2011-2013 medical insurance data of patients with COPD in a large city. The data set included demographic information and admission records. Leveraging on developments in graphical modeling methods, we proposed a smooth Bayesian network (SBN) model for the prediction of high-cost individuals using medical insurance data. The modeling method incorporated some expert knowledge about causal relationships (i.e., about the Bayesian network structure). We employed a smoothing kernel based on the weighted nearest neighborhood method in the SBN model to address overfitting, case-mix effect, and data sparsity (i.e., using data about "similar patients"). RESULTS The proposed SBN achieved the area under curve (AUC) of 0.80 and showed considerable improvement over the baseline machine-learning methods. Besides confirming the known factors from the literature, we found "region" (i.e., a suburban or urban area) to be a significant factor, and that in a 3-tier system with primary, secondary and tertiary hospitals, COPD patients who had been admitted to primary hospitals were more likely to develop into future high-cost patients than patients who had been admitted to tertiary hospitals. CONCLUSION The proposed SBN model not only obtained higher prediction accuracy and stronger generalizability than a number of benchmark machine-learning methods, but also used the Bayesian network to capture the complex causal relationships between different predictors by incorporating expert knowledge. Furthermore, a framework was developed to establish the relationships between exposure to historical trajectory and future outcome, which can also be applied to other temporal data to model different trajectory information and predict other outcomes.
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Kim EJ, Yoon SJ, Kim YE, Go DS, Jung Y. Effects of Aging and Smoking Duration on Cigarette Smoke-Induced COPD Severity. J Korean Med Sci 2019; 34:e90. [PMID: 30923493 PMCID: PMC6434146 DOI: 10.3346/jkms.2019.34.e90] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Accepted: 08/07/2018] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND Aging can serve as an underlying mechanism of chronic obstructive pulmonary disease (COPD). Also, smoking, which is the most common cause of COPD, is responsible for the systemic manifestations of the disease, independently from the lung function alterations. The purpose of this study was to analyze the effect of aging on the occurrence of cigarette smoking induced COPD. METHODS For this analysis, we evaluated smoking status by a lifestyle intervention program and measured the occurrence of COPD by the Korea National Health and Nutrition Examination Survey (KNHANES) from 2005 to 2015. RESULTS Aging and smoking were significantly effected on the lung function of COPD patients. Especially, the smoking duration is exaggerated in the presence of old age for older COPD patients. CONCLUSION The result showed that COPD patients exhibit aging and smoking duration related severity. The prevalence of COPD kept increasing internationally. Knowing the risk factor of COPD quantitatively and finding out the interaction among risk factors could be valuable predictors for preventing COPD.
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Affiliation(s)
- Eun-Jung Kim
- Department of Nursing, Pyeongtaek University, Pyeongtaek, Korea
| | - Seok-Jun Yoon
- Department of Preventive Medicine, Korea University College of Medicine, Seoul, Korea
| | - Young-Eun Kim
- Department of Preventive Medicine, Korea University College of Medicine, Seoul, Korea
| | - Dun-Sol Go
- Department of Public Health, Graduate School, Korea University, Seoul, Korea
| | - Yunsun Jung
- Department of Public Health, Graduate School, Korea University, Seoul, Korea
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Santos FMD, Viana KP, Saturnino LT, Lazaridis E, Gazzotti MR, Stelmach R, Soares C. Trend of self-reported asthma prevalence in Brazil from 2003 to 2013 in adults and factors associated with prevalence. ACTA ACUST UNITED AC 2019; 44:491-497. [PMID: 30726325 PMCID: PMC6459747 DOI: 10.1590/s1806-37562017000000328] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Accepted: 07/08/2018] [Indexed: 12/29/2022]
Abstract
Objectives: To determine the trend of self-reported asthma diagnosed prevalence and to describe the factors associated with asthma in Brazilian adults. Method: Epidemiological cross-sectional study based on databases analysis from three national household surveys: Pesquisa Nacional por Amostra de Domicílios (PNAD) 2003, PNAD 2008 and Pesquisa Nacional de Saúde (PNS) 2013. Participants between 18-45 years old were included. Trend analysis of asthma diagnosed prevalence was conducted using a logistic general linear model. A hierarchical logistic regression model was used to select factors significantly associated with asthma prevalence. Results: Asthma diagnosed prevalence was 3.6% (2003), 3.7% (2008) and 4.5% (2013), showing a statistically significant increased trend. Asthma diagnosed prevalence also increased when analysed by gender (annual change for men: 2.47%, p < 0.003; women: 2.16%, p < 0.001), urban area (annual change for urban: 2.15%, p < 0.001; rural: 2.69%, p = 0.072), healthcare insurance status (annual change without healthcare insurance: 2.18%, p < 0.001; with healthcare insurance: 1.84%, p = 0.014), and geographic regions (annual change North: 4.68%, p < 0.001; Northeast: 4.14%, p < 0.001; and Southeast: 1.84%, p = 0.025). Female gender, obesity, living in urban areas and depression were associated with asthma diagnosed prevalence. Discussion: PNAD and PNS surveys allow for a very large, representative community-based sample of the Brazilian adults to investigate the asthma prevalence. From 2003 to 2013, the prevalence of self-reported physician diagnosis of asthma increased, especially in the North and Northeast regions. Gender, region of residence, household location (urban/rural), obesity, and depression diagnosis seem to play significant roles in the epidemiology of asthma in Brazil.
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Affiliation(s)
| | | | | | | | | | - Rafael Stelmach
- . Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo (SP) Brasil
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Comparison of hypothesis- and data-driven asthma phenotypes in NHANES 2007-2012: the importance of comprehensive data availability. Clin Transl Allergy 2019; 9:17. [PMID: 30918624 PMCID: PMC6419396 DOI: 10.1186/s13601-019-0258-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Accepted: 03/01/2019] [Indexed: 12/28/2022] Open
Abstract
Background Half of the adults with current asthma among the US National Health and Nutrition Examination Survey (NHANES) participants could be classified in more than one hypothesis-driven phenotype. A data-driven approach applied to the same subjects may allow a more useful classification compared to the hypothesis-driven one. Aim To compare previously defined hypothesis-driven with newly derived data-driven asthma phenotypes, identified by latent class analysis (LCA), in adults with current asthma from NHANES 2007–2012. Methods Adults (≥ 18 years) with current asthma from the NHANES were included (n = 1059). LCA included variables commonly used to subdivide asthma. LCA models were derived independently according to age groups: < 40 and ≥ 40 years old. Results Two data-driven phenotypes were identified among adults with current asthma, for both age groups. The proportions of the hypothesis-driven phenotypes were similar among the two data-driven phenotypes (p > 0.05). Class A < 40 years (n = 285; 75%) and Class A ≥ 40 years (n = 462; 73%), respectively, were characterized by a predominance of highly symptomatic asthma subjects with poor lung function, compared to Class B < 40 years (n = 94; 25%) and Class B ≥ 40 years (n = 170; 27%). Inflammatory biomarkers, smoking status, presence of obesity and hay fever did not markedly differ between the phenotypes. Conclusion Both data- and hypothesis-driven approaches using clinical and physiological variables commonly used to characterize asthma are suboptimal to identify asthma phenotypes among adults from the general population. Further studies based on more comprehensive disease features are required to identify asthma phenotypes in population-based studies. Electronic supplementary material The online version of this article (10.1186/s13601-019-0258-7) contains supplementary material, which is available to authorized users.
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Kurth L, Doney B, Halldin C, Hale J, Frenk SM. Airflow obstruction among ever-employed U.S. adults aged 18-79 years by industry and occupation: NHANES 2007-2008 to 2011-2012. Am J Ind Med 2019; 62:30-42. [PMID: 30520118 PMCID: PMC6487473 DOI: 10.1002/ajim.22930] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/13/2018] [Indexed: 12/24/2022]
Abstract
INTRODUCTION This study estimated the prevalence of spirometry-defined airflow obstruction by industry and occupation and chronic obstructive pulmonary disease (COPD) among ever-employed U.S. adults. METHODS Data came from the National Health and Nutrition Examination Survey (NHANES) 2007-2008 to 2011-2012, a nationally representative study of the non-institutionalized civilian U.S. POPULATION Data on respondent's current and/or longest held job were used to create prevalence estimates and adjusted prevalence odds ratios (PORs) for airflow obstruction and COPD. RESULTS Among ever-employed U.S. adults, airflow obstruction prevalence was 12.40% and COPD was 3.47%. High airflow obstruction prevalence and significant PORs were reported in mining; manufacturing; construction; and services to buildings industries as well as extraction; bookbinders, prepress, and printing; installers and repairers; and construction occupations. CONCLUSION Prevalence of airflow obstruction varies by industry and occupation. Industries and occupations with increased risk were identified using the most current NHANES data including detailed occupations and spirometry.
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Affiliation(s)
- Laura Kurth
- Respiratory Health Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, West Virginia
| | - Brent Doney
- Respiratory Health Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, West Virginia
| | - Cara Halldin
- Respiratory Health Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, West Virginia
| | - Janet Hale
- Respiratory Health Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, West Virginia
| | - Steven M. Frenk
- Division of Health and Nutrition Examination Surveys, National Center for Health Statistics, Centers for Disease Control and Prevention, Hyattsville, Maryland
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Zhang H, Dong L, Kang YK, Lu Y, Wei HH, Huang J, Wang X, Huang K. Epidemiology of chronic airway disease: results from a cross-sectional survey in Beijing, China. J Thorac Dis 2018; 10:6168-6175. [PMID: 30622788 DOI: 10.21037/jtd.2018.10.44] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Background Although the epidemiology of chronic airway disease (CAD) has been investigated in several population-based studies, the findings of these studies are diverse. We aimed to investigate the prevalence of CAD and its associated factors in urban northern China. Methods A cross-sectional study was conducted among 29,359 Chinese adults aged ≥20 years. All participants were randomly recruited from two urban communities in Beijing and asked to complete a self-administered questionnaire that enquired about the demographic characteristics as well as the diagnosis of CAD and CAD-related symptoms. Results In all, 26,166 participants completed the questionnaire, with the response rate being 89.1%. The prevalence of diagnosed CAD was 9.0% among men and 7.2% among women, with a total prevalence of 8.1%. Furthermore, 11.5% of the investigated subjects had CAD-related symptoms. Women had a lower risk of developing wheezing, cough, dyspnea, and diagnosed CAD than men (P<0.05). The frequency of CAD-related symptoms and diagnosed CAD was greater among elderly persons than among those who were younger (P<0.01). Subjects with a smoking habit were more susceptible to CAD-related symptoms and diagnosed CAD (P<0.01). Additionally, individuals with CAD-related symptoms were more likely to be diagnosed with CAD, compared to those without these symptoms (P<0.01). Conclusions CAD is a common respiratory disease in urban northern China. Female gender might be a protective factor against CAD, while age and smoking are risk factors for the disease.
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Affiliation(s)
- Hong Zhang
- Beijing Key Laboratory of Respiratory and Pulmonary Circulation Disorders, Department of Pulmonary and Critical Care Medicine, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China.,Beijing Institute of Respiratory Medicine, Beijing 100020, China
| | - Li Dong
- Beijing Tongren Eye Center, Beijing Key Laboratory of Intraocular Tumor Diagnosis and Treatment, Beijing Ophthalmology & Visual Sciences Key Lab, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - Yi-Kun Kang
- Beijing Key Laboratory of Respiratory and Pulmonary Circulation Disorders, Department of Pulmonary and Critical Care Medicine, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China.,Beijing Institute of Respiratory Medicine, Beijing 100020, China
| | - Yong Lu
- Beijing Key Laboratory of Respiratory and Pulmonary Circulation Disorders, Department of Pulmonary and Critical Care Medicine, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China.,Beijing Institute of Respiratory Medicine, Beijing 100020, China
| | - Hui-Hong Wei
- Beijing Key Laboratory of Respiratory and Pulmonary Circulation Disorders, Department of Pulmonary and Critical Care Medicine, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China.,Beijing Institute of Respiratory Medicine, Beijing 100020, China
| | - Jie Huang
- Beijing Key Laboratory of Respiratory and Pulmonary Circulation Disorders, Department of Pulmonary and Critical Care Medicine, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China.,Beijing Institute of Respiratory Medicine, Beijing 100020, China
| | - Xue Wang
- Beijing Key Laboratory of Respiratory and Pulmonary Circulation Disorders, Department of Pulmonary and Critical Care Medicine, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China.,Beijing Institute of Respiratory Medicine, Beijing 100020, China
| | - Kewu Huang
- Beijing Key Laboratory of Respiratory and Pulmonary Circulation Disorders, Department of Pulmonary and Critical Care Medicine, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China.,Beijing Institute of Respiratory Medicine, Beijing 100020, China
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Tilert T, Paulose-Ram R, Howard D, Butler J, Lee S, Wang MQ. Prevalence and factors associated with self-reported chronic obstructive pulmonary disease among adults aged 40-79: the National Health and Nutrition Examination Survey (NHANES) 2007-2012. EC PULMONOLOGY AND RESPIRATORY MEDICINE 2018; 7:650-662. [PMID: 30294723 PMCID: PMC6169793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
INTRODUCTION Chronic obstructive pulmonary disease (COPD) is a respiratory disease that often goes undiagnosed, particularly in its early stages. OBJECTIVE To examine sociodemographic, general health, and COPD specific factors, including severity of lung obstruction, that are associated with healthcare provider-diagnosed COPD among U.S. adults. METHODS NHANES cross-sectional data collected from 2007-2012 on adults aged 40-79 years (n=10,219) were analyzed. The primary outcome was self-reported COPD diagnosis with predictive factors analyzed via chi-square and logistic regression analyses. RESULTS During 2007-2012, 5.2% of US adults aged 40-79 reported being diagnosed with COPD. Among those diagnosed, 50.8% reported fair or poor health, 47.1% were currently smoking cigarettes, 49.1% were taking prescription respiratory medication, 36.4% had moderate or worse lung obstruction, and nearly 90% had one or more respiratory symptoms. Logistic regression revealed positive associations between receiving a COPD diagnosis and the following: being white (AOR: 3.08, 95% CI: 1.82-5.20); being aged 60-79 years (AOR: 1.65, 95% CI: 1.07-2.53); reporting fair/poor health (AOR: 2.91, CI: 1.55-5.46); having 4-9 (AOR: 3.5, CI: 1.3-9.4) or 10 or more healthcare visits in prior year (AOR: 5.06, CI: 1.62-15.77); being a former (AOR: 1.75, CI: 1.2-2.5) or current smoker (AOR: 1.70, CI: 1.17-2.48); having more severe lung obstruction (AOR: 4.90, CI: 3.28-7.32); having 3 or more respiratory symptoms (AOR: 22.07, CI: 12.03-40.49). CONCLUSIONS Multiple factors are associated with self-reported COPD diagnosis with number of reported respiratory symptoms having the strongest association. After controlling for other factors, having mild lung obstruction was not associated with being diagnosed.
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Affiliation(s)
- Timothy Tilert
- Division of Health and Nutrition Examination Surveys, National Center for Health Statistics, Centers for Disease Control and Prevention, 3311 Toledo Road, Hyattsville, MD 20782, USA
| | - Ryne Paulose-Ram
- Division of Health and Nutrition Examination Surveys, National Center for Health Statistics, Centers for Disease Control and Prevention, 3311 Toledo Road, Hyattsville, MD 20782, USA
| | - Donna Howard
- Department of Behavioral and Community Health, University of Maryland School of Public Health, 4200 Valley Drive, College Park, MD 20742, USA
| | - James Butler
- Department of Behavioral and Community Health, University of Maryland School of Public Health, 4200 Valley Drive, College Park, MD 20742, USA
| | - Sunmin Lee
- Department of Epidemiology and Biostatistics, University of Maryland School of Public Health, 4200 Valley Drive, College Park, MD 20742, USA
| | - Min Qi Wang
- Department of Behavioral and Community Health, University of Maryland School of Public Health, 4200 Valley Drive, College Park, MD 20742, USA
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Amaral R, Fonseca JA, Jacinto T, Pereira AM, Malinovschi A, Janson C, Alving K. Having concomitant asthma phenotypes is common and independently relates to poor lung function in NHANES 2007-2012. Clin Transl Allergy 2018; 8:13. [PMID: 29755730 PMCID: PMC5934840 DOI: 10.1186/s13601-018-0201-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Accepted: 03/26/2018] [Indexed: 12/24/2022] Open
Abstract
Background Evidence for distinct asthma phenotypes and their overlap is becoming increasingly relevant to identify personalized and targeted therapeutic strategies. In this study, we aimed to describe the overlap of five commonly reported asthma phenotypes in US adults with current asthma and assess its association with asthma outcomes. Methods Data from the National Health and Nutrition Examination Surveys (NHANES) 2007-2012 were used (n = 30,442). Adults with current asthma were selected. Asthma phenotypes were: B-Eos-high [if blood eosinophils (B-Eos) ≥ 300/mm3]; FeNO-high (FeNO ≥ 35 ppb); B-Eos&FeNO-low (B-Eos < 150/mm3 and FeNO < 20 ppb); asthma with obesity (AwObesity) (BMI ≥ 30 kg/m2); and asthma with concurrent COPD. Data were weighted for the US population and analyses were stratified by age (< 40 and ≥ 40 years old). Results Of the 18,619 adults included, 1059 (5.6% [95% CI 5.1-5.9]) had current asthma. A substantial overlap was observed both in subjects aged < 40 years (44%) and ≥ 40 years (54%). The more prevalent specific overlaps in both age groups were AwObesity associated with either B-Eos-high (15 and 12%, respectively) or B-Eos&FeNO-low asthma (13 and 11%, respectively). About 14% of the current asthma patients were "non-classified". Regardless of phenotype classification, having concomitant phenotypes was significantly associated with (adjusted OR, 95% CI) ≥ 2 controller medications (2.03, 1.16-3.57), and FEV1 < LLN (3.21, 1.74-5.94), adjusted for confounding variables. Conclusions A prevalent overlap of commonly reported asthma phenotypes was observed among asthma patients from the general population, with implications for objective asthma outcomes. A broader approach may be required to better characterize asthma patients and prevent poor asthma outcomes.
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Affiliation(s)
- Rita Amaral
- 1CINTESIS- Center for Health Technology and Services Research, Faculty of Medicine, University of Porto, Edifício Nascente, Piso 2, Rua Dr. Plácido da Costa, s/n, 4200-450 Porto, Portugal.,Department of Cardiovascular and Respiratory Sciences, Porto Health School, Porto, Portugal
| | - João A Fonseca
- 1CINTESIS- Center for Health Technology and Services Research, Faculty of Medicine, University of Porto, Edifício Nascente, Piso 2, Rua Dr. Plácido da Costa, s/n, 4200-450 Porto, Portugal.,3MEDCIDS- Department of Community Medicine, Information, and Health Sciences, Faculty of Medicine, University of Porto, Porto, Portugal.,Department of Allergy, Instituto & Hospital CUF, Porto, Portugal
| | - Tiago Jacinto
- 1CINTESIS- Center for Health Technology and Services Research, Faculty of Medicine, University of Porto, Edifício Nascente, Piso 2, Rua Dr. Plácido da Costa, s/n, 4200-450 Porto, Portugal.,Department of Cardiovascular and Respiratory Sciences, Porto Health School, Porto, Portugal.,Department of Allergy, Instituto & Hospital CUF, Porto, Portugal
| | - Ana M Pereira
- 1CINTESIS- Center for Health Technology and Services Research, Faculty of Medicine, University of Porto, Edifício Nascente, Piso 2, Rua Dr. Plácido da Costa, s/n, 4200-450 Porto, Portugal.,Department of Allergy, Instituto & Hospital CUF, Porto, Portugal
| | - Andrei Malinovschi
- 5Department of Medical Sciences: Clinical Physiology, Uppsala University, Uppsala, Sweden
| | - Christer Janson
- 6Department of Medical Sciences: Respiratory Medicine and Allergology, Uppsala University, Uppsala, Sweden
| | - Kjell Alving
- 7Department of Women's and Children's Health: Paediatric Research, Uppsala University, Uppsala, Sweden
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Gribsholt SB, Pedersen L, Richelsen B, Dekkers O, Thomsen RW. Body Mass Index of 92,027 patients acutely admitted to general hospitals in Denmark: Associated clinical characteristics and 30-day mortality. PLoS One 2018; 13:e0195853. [PMID: 29659630 PMCID: PMC5901987 DOI: 10.1371/journal.pone.0195853] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Accepted: 03/31/2018] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Data are sparse on the range of BMI among patients acutely admitted to general hospitals. We investigated BMI values and associated patient characteristics, reasons for hospital admission, and mortality in Denmark. METHODS We identified all persons with an acute inpatient admission 2011-2014 in Central Denmark Region and assessed BMI measurements recorded in the Clinical Information System. We used cross-sectional and cohort analyses to examine the BMI distribution and its association with demographic characteristics, comorbidities, medication use, tobacco smoking, reasons for admission, and 30-day mortality. RESULTS Among 92,027 acutely admitted patients (median age 62 years, 49% female) with a BMI measurement, 4% had a BMI (kg/m2) <18.5, 42% a BMI between 18.5 and 25, 34% a BMI between 25 and 30, and 20% a BMI ≥30. Compared with normal-weight patients, 30-day mortality was high among patients with BMI <18.5 (7.5% vs. 2.8%, age- and smoking-adjusted odds ratio (aOR) 2.4; 95% confidence interval (CI): 2.0-2.9, whereas patients with overweight (aOR 0.7; 95% CI: 0.6-0.8) and obesity class I (aOR 0.8; 95% CI: 0.6-0.9)). Compared with the total population, patients with BMI <18.5 were older (68 years median); more were female (73%); more had comorbidities (Charlson Comorbidity Index score >0 in 42% vs. 33% overall), more were current smokers (45% vs. 27% overall), and acute admissions due to respiratory diseases or femoral fractures were frequent. In contrast, patients with BMI ≥30 were relatively young (59 years median), fewer smoked (24%): type 2 diabetes, sleep disorders, cholelithiasis, and heart failure were frequent diagnoses. Prevalence of therapies for metabolic syndrome, pain, and psychiatric disorders increased with higher BMI, while patients with BMI <18.5 frequently used asthma medications, glucocorticoids, and antibiotics. CONCLUSION In patients acutely admitted to general hospitals, reasons for hospital admission and associated clinical characteristics differ substantially according to BMI range. BMI <18.5 is a clinical predictor of high short-term mortality.
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Affiliation(s)
- Sigrid Bjerge Gribsholt
- Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark
- Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Aarhus, Denmark
- * E-mail:
| | - Lars Pedersen
- Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark
| | - Bjørn Richelsen
- Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Olaf Dekkers
- Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark
- Department of Clinical Epidemiology and Internal Medicine, Leiden University Medical Centre, Leiden, The Netherlands
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Barbosa ATF, Carneiro JA, Ramos GCF, Leite MT, Caldeira AP. Factors associated with Chronic Obstructive Pulmonary Disease among the elderly. CIENCIA & SAUDE COLETIVA 2018; 22:63-73. [PMID: 28076530 DOI: 10.1590/1413-81232017221.13042016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2016] [Accepted: 07/21/2016] [Indexed: 11/22/2022] Open
Abstract
This study aimed to identify factors associated with Chronic Obstructive Pulmonary Disease (COPD) among non-institutionalized elderly people. It involved a cross-sectional study conducted on the basis of a household survey, followed by spirometry. People diagnosed with COPD were compared with those with normal spirometry, through bivariate analysis, followed by multivariate regression analysis. We identified 53 elderly people were identified with COPD. After multivariate analysis, the following factors associated with COPD were identified: past or current smoking (OR: 3.74; 95% CI: 1.65-8.46), presence of chronic sputum (OR: 4.92; 95% CI: 2.03-11.95), pulse oximetry at rest ≤ 90% (OR: 8.74; 95%CI: 1.27-60.07), self-reported asthma (OR: 3.41; 95% CI: 1.01-11.57). The results reveal associated factors that highlight the need to review the selection criteria for patients at risk of COPD among the elderly.
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Affiliation(s)
- Ana Teresa Fernandes Barbosa
- Centro de Ciências Biológicas e da Saúde, Universidade Estadual de Montes Claros. Av. Rui Braga, Vila Mauricéia. 39401-089 Montes Claros MG Brasil.
| | - Jair Almeida Carneiro
- Centro de Ciências Biológicas e da Saúde, Universidade Estadual de Montes Claros. Av. Rui Braga, Vila Mauricéia. 39401-089 Montes Claros MG Brasil.
| | - Gizele Carmen Fagundes Ramos
- Centro de Ciências Biológicas e da Saúde, Universidade Estadual de Montes Claros. Av. Rui Braga, Vila Mauricéia. 39401-089 Montes Claros MG Brasil.
| | - Maísa Tavares Leite
- Centro de Ciências Biológicas e da Saúde, Universidade Estadual de Montes Claros. Av. Rui Braga, Vila Mauricéia. 39401-089 Montes Claros MG Brasil.
| | - Antônio Prates Caldeira
- Centro de Ciências Biológicas e da Saúde, Universidade Estadual de Montes Claros. Av. Rui Braga, Vila Mauricéia. 39401-089 Montes Claros MG Brasil.
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Stafyla E, Kotsiou OS, Deskata K, Gourgoulianis KI. Missed diagnosis and overtreatment of COPD among smoking primary care population in Central Greece: old problems persist. Int J Chron Obstruct Pulmon Dis 2018; 13:487-498. [PMID: 29440886 PMCID: PMC5804734 DOI: 10.2147/copd.s147628] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Background The diagnosis of COPD is not always consistent with the Global Initiative for Chronic Obstructive Lung Disease (GOLD) strategy in daily clinical practice, especially in primary care. This study aimed to estimate the overall COPD prevalence and severity, to identify differences between newly and previously diagnosed patients, and to evaluate the potential COPD overtreatment in a smoking population attending a primary care spirometry surveillance program. Methods A study was conducted in 10 primary health care centers of Central Greece during a 7-month period. Eligible participants were aged ≥40 years and were either current smokers or exsmokers. Results A total of 186 subjects were included (68% males, mean age 62.3±12.6 years, mean life-time tobacco exposure 50 pack-years). COPD prevalence was 17.8%, identified to be higher in elderly males. Forty-two percent of the COPD group were newly diagnosed patients, who were of younger age, current smokers, presented with less dyspnea and better health status, and mainly appeared with mild-to-moderate disease. Interestingly, 61.4% of non-COPD and 85.7% of newly diagnosed COPD individuals had been using inhaled medication under primary care provider's prescription without ever undergoing spirometry or further evaluation by a pulmonologist; thus, the phenomena of COPD overdiagnosis and missed diagnosis came into the spotlight. Moreover, only 26.3% of known COPD patients were properly medicated according to GOLD guidelines, while half of them were inappropriately treated with triple inhaled therapy. Conclusion We reported a significant prevalence of COPD in smoking population attending this spirometry program. A remarkable proportion of COPD patients were undiagnosed and made case finding worthwhile. Underutilization of spirometry in the diagnosis and management of COPD as well as general practitioners' nonadherence to the GOLD treatment guidelines was confirmed by our data. These findings highlight the need for a major overhaul and culture change in primary care settings of Central Greece.
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Affiliation(s)
- Eirini Stafyla
- Department of Respiratory Medicine, School of Medicine, University of Thessaly, Biopolis, Larissa, Thessaly, Greece
| | - Ourania S Kotsiou
- Department of Respiratory Medicine, School of Medicine, University of Thessaly, Biopolis, Larissa, Thessaly, Greece
| | - Konstantina Deskata
- Department of Respiratory Medicine, School of Medicine, University of Thessaly, Biopolis, Larissa, Thessaly, Greece
| | - Konstantinos I Gourgoulianis
- Department of Respiratory Medicine, School of Medicine, University of Thessaly, Biopolis, Larissa, Thessaly, Greece
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Thomson NC. Asthma and smoking-induced airway disease without spirometric COPD. Eur Respir J 2017; 49:49/5/1602061. [PMID: 28461294 DOI: 10.1183/13993003.02061-2016] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Accepted: 02/01/2017] [Indexed: 12/15/2022]
Abstract
Due to the high prevalence rates of cigarette smoking and asthma, current and ex-smokers frequently develop chronic airway disease without spirometric evidence of chronic obstructive pulmonary disease (COPD), either alone or associated with asthma. This review considers the classification, clinical outcomes, inflammatory and imaging variables, phenotypes, and management of current and ex-smokers with airway disease without COPD, focusing on overlaps in those with and without asthma. These individuals have more respiratory symptoms, worse quality of life, increased exacerbation rates, reduced lung function and more comorbidities than never-smokers with asthma or healthy never-smokers. As well as clinical features, airway inflammatory and structural changes in smoking-induced airway disease without COPD overlap with those found in smokers with asthma. Cigarette smoking is associated with worse clinical outcomes in some phenotypes of asthma. Management involves public health measures to control exposure to tobacco smoke, personal advice on smoking cessation and the use of appropriate targeted therapies, although evidence is limited on their effectiveness. Understanding the mechanisms, natural history and management of current and ex-smokers with asthma and smoking-induced airway disease without COPD is a priority for future research.
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Affiliation(s)
- Neil C Thomson
- Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, UK
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The Shiraz Adult Respiratory Disease Study, a Population-Based Survey: Rationale, Design and Methods. ACTA ACUST UNITED AC 2017. [DOI: 10.5812/semj.44968] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Changes in the prevalence of COPD in Korea between 2001 and 2011 in the KNHANES data. Respir Med 2017; 125:12-18. [PMID: 28340856 DOI: 10.1016/j.rmed.2017.02.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Revised: 02/20/2017] [Accepted: 02/24/2017] [Indexed: 11/21/2022]
Abstract
BACKGROUND Chronic obstructive pulmonary disease (COPD) is a serious public health problem. Understanding the longitudinal trend in prevalence is important for characterizing the burden of COPD and planning health services. METHODS We analyzed the prevalence of airflow obstruction between 2001 and 2011 using data from Korean National Health and Nutritional Examination Surveys (2001, n = 2217; 2011, n = 3101). Participants >40 years of age with an FEV1/FVC <0.7 were defined as having COPD. We used data from the Population and Housing Census, which was conducted by Statistics Korea in 2010, to compare the prevalence of COPD after standardizing by age. RESULTS The crude prevalence of COPD was not significantly different between 2001 and 2011 (2001, 13.0%; 2011, 13.2%), but the age-standardized prevalence of COPD decreased significantly over the 10-year period (2001, 15.7%; 2011, 12.4%). While significant decreases were observed for ex-smokers and current smokers, significant increases were noted for subjects who smoked <20 pack-years and those with a BMI ≤18.5 kg/m2. The prevalence of mild and severe COPD decreased (2001, mild 8.5%, severe 1.4%; 2011, mild 5.4%, severe 0.5%), while the prevalence of moderate COPD increased (2001, 5.7%; 2011, 6.4%) after age standardization. CONCLUSIONS We report a reduction in the age-standardized prevalence of COPD in Korea from 2001 to 2011. Continued surveillance and early prevention are required because the socioeconomic burden of COPD remains substantial.
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Gupta S, Allen C, Moosa D, MacPherson A, Tamari IE. Novel Interprofessional Mentoring Intervention to Improve Spirometry in Primary Care: Uptake, Feedback, and Effects on Behavioral Intention. THE JOURNAL OF CONTINUING EDUCATION IN THE HEALTH PROFESSIONS 2017; 37:183-189. [PMID: 28857960 DOI: 10.1097/ceh.0000000000000161] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
INTRODUCTION Little is known about the nature and effects of mentoring interventions on evidence-based clinician behaviors. We sought to design and evaluate a novel mentorship-based intervention to improve the usage of spirometry in primary care. METHODS This was a prospective one-year study of a pragmatic intervention across Canadian primary care sites. We established mentor-mentee pods, each including physician and nurse/allied health mentors and mentees, and enabled communication through a secure online portal; email; telephone; teleconference; videoconference; fax; and/or in person. We measured (1) change in intention to perform spirometry (through a questionnaire based on the theory of planned behavior, administered before and after the intervention); (2) mentoring uptake; and (3) feedback/satisfaction. RESULTS Twenty-five of 90 (28%) nurse/allied health and 23/68 (34%) physician mentees consented across seven sites. There were no statistically significant changes in behavioral intention after the intervention. Mentors logged 56.5 hours, with most preferred communication modalities being in person (6/11; 55%) and email (4/11; 36%). Mentees most commonly used email (9/18; 50%), followed by in-person communication (6/18; 33%). Mentees were highly satisfied with the experience, and most (89%) would participate in a similar program again. DISCUSSION A mentorship-based intervention can successfully engage physicians, nurses, and allied health practitioners through multiple communication platforms. Email seems to be an important medium for this activity. Such interventions can be highly satisfying and may affect certain constructs underlying mentees' behavioral intentions. Such a program can be replicated across diseases, and future research should measure effects on behavior, patient outcomes, and the sustainability of effects.
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Affiliation(s)
- Samir Gupta
- Dr. Gupta: Department of Medicine, University of Toronto, Canada, Division of Respirology, Department of Medicine, St. Michael's Hospital, Toronto, Canada, and Li Ka Shing Knowledge Institute of St. Michael's Hospital, Toronto, Canada. Dr. Allen: Firestone Institute for Respiratory Health, McMaster University, Hamilton, Canada. Mrs. Moosa: Ontario Lung Association, Toronto, Ontario. Dr. MacPherson: Southlake SSNYR Health Links, Central LHIN, Southlake, Newmarket, Canada. Dr. Tamari: Stonegate Community Health Centre, Toronto, Canada
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Depression Is Associated with Readmission for Acute Exacerbation of Chronic Obstructive Pulmonary Disease. Ann Am Thorac Soc 2016; 13:197-203. [PMID: 26599286 DOI: 10.1513/annalsats.201507-439oc] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
RATIONALE Hospitalization for acute exacerbation of chronic obstructive pulmonary disease (COPD) is associated with significant morbidity and health care costs, and hospitals in the United States are now penalized by the Centers for Medicare and Medicaid Services for excessive readmissions. Identifying patients at risk of readmission is important, but modifiable risk factors have not been clearly established, and the potential contributing role of psychological disease has not been examined adequately. We hypothesized that depression and anxiety would increase the risk of both short- and long-term readmissions for acute exacerbation of COPD. OBJECTIVES To characterize the associations between depression and anxiety and COPD readmission risk. METHODS We examined the medical records for all patients with a primary diagnosis of acute exacerbation of COPD by International Classification of Diseases, Ninth Revision codes admitted to the University of Alabama at Birmingham Hospital between November 2010 and October 2012. Those who did not meet the standardized study criteria for acute exacerbation of COPD and those with other respiratory illnesses as the primary diagnosis were excluded. Comorbidities were recorded on the basis of physician documentation of the diagnosis and/or the use of medications in the electronic medical record. Multivariable regression analyses identified factors associated with readmission for acute exacerbation of COPD at 1 year and within 30 and 90 days. MEASUREMENTS AND MAIN RESULTS Four hundred twenty-two patients were included, with 132 readmitted in 1 year. Mean age was 64.8 ± 11.7 years, and mean percent predicted FEV1 was 48.1 ± 18.7%. On univariate analysis, readmitted patients had lower percent predicted FEV1 (44.9 ± 17.3% vs. 50.2 ± 19.4%; P = 0.05) and a higher frequency of depression (47.7% vs. 23.4%; P < 0.001). On multivariable analysis, 1-year readmission was independently associated with depression (adjusted odds ratio [OR], 2.67; 95% confidence interval [CI], 1.59-4.47) and in-hospital tobacco cessation counseling (adjusted OR, 0.34; 95% CI, 0.18-0.66). Depression also predicted readmission at 30 days (adjusted OR, 3.83; 95% CI, 1.84-7.96) and 90 days (adjusted OR, 2.47; 95% CI, 1.34-4.55). CONCLUSIONS Depression is an independent risk factor for both short- and long-term readmissions for acute exacerbation of COPD and may represent a modifiable risk factor. In-hospital tobacco cessation counseling was also associated with reduced 1-year readmission.
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Undiagnosed Obstructive Lung Disease in the United States. Associated Factors and Long-term Mortality. Ann Am Thorac Soc 2016; 12:1788-95. [PMID: 26524488 DOI: 10.1513/annalsats.201506-388oc] [Citation(s) in RCA: 126] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
RATIONALE Understanding factors associated with undiagnosed obstructive lung disease and its impact on mortality could inform the ongoing discussions about benefits and risks of screening and case finding. OBJECTIVES To define factors associated with undiagnosed obstructive lung disease and its long-term mortality. METHODS Cross-sectional analysis of participants, aged 20 to 79 years, in two National Health and Nutritional Examination Surveys (NHANES), NHANES III (1988-1994) and NHANES 2007-2012, with longitudinal follow-up of NHANES III participants. MEASUREMENTS AND MAIN RESULTS We classified participants with spirometry-confirmed obstructive disease, based on the fixed ratio definition (FEV1/FVC < 0.7), as "diagnosed" (physician diagnosis of either asthma or chronic obstructive pulmonary disease), and "undiagnosed" (no recorded physician diagnosis). For the longitudinal analysis of NHANES III participants, mortality was the outcome of interest. We tested the contribution of self-reported health status and comorbidity burden (exposure) to the odds of being undiagnosed using logistic models adjusted for demographics, smoking status, and lung function. We estimated hazard ratios (HRs) for all-cause mortality for diagnosed and undiagnosed subjects participating in NHANES III who had spirometry using Cox- proportional regression analysis. Among those with spirometry-defined obstruction, 71.2% (SE, 1.8) in NHANES III and 72.0% (SE, 1.9) in NHANES 2007-2012 were undiagnosed. In multivariate models, undiagnosed obstructive disease was consistently associated in both surveys with self-reported good/excellent health status, lower comorbidity burden, higher lung function, and being of racial/ethnic minority. Among NHANES III participants (median follow up, 14.5 yr), both undiagnosed (HR, 1.23; 95% confidence interval, 1.08-1.40) and correctly diagnosed participants (HR, 1.74; 95% confidence interval, 1.45-2.09) had higher risk for all-cause mortality than participants without obstruction. CONCLUSIONS Undiagnosed obstructive lung disease is common among American adults and remained unchanged over 2 decades. Although undiagnosed subjects appear healthier than those with a diagnosis, their risk of death was increased compared with subjects without obstruction. These findings need to be considered when judging the implications of case-finding programs for obstructive lung disease.
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Rönmark EP, Ekerljung L, Mincheva R, Sjölander S, Hagstad S, Wennergren G, Rönmark E, Lötvall J, Lundbäck B. Different risk factor patterns for adult asthma, rhinitis and eczema: results from West Sweden Asthma Study. Clin Transl Allergy 2016; 6:28. [PMID: 27493721 PMCID: PMC4973051 DOI: 10.1186/s13601-016-0112-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Accepted: 05/15/2016] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Atopic diseases including asthma, rhinitis and eczema have increased in the second half of the past century. This has been well studied among children and adolescents but with the exception of asthma to a much lesser extent in adults. The adult risk factor pattern of atopic diseases, in particular of eczema, and their relation to allergic sensitization are yet to be fully elucidated. Studies among adults that have compared the risk factor pattern for these conditions in the same material are very few. The objective of this study was to compare the risk factor patterns for asthma, rhinitis and eczema in a randomly selected adult population. METHODS A questionnaire survey on atopic diseases was dispatched by mail to 30,000 randomly selected individuals in West Sweden aged 16-75 years and 62 % participated. A subgroup of 2000 individuals was selected for clinical examinations including blood sampling for specific serum Immunoglobulin E to common airborne allergens and 1172 attended. RESULTS The prevalence of current asthma was 11.8 %, current rhinitis 42.8 %, current eczema 13.5 and 2.3 % had all three conditions while 13.9 % had at least two conditions. No mutual risk factor was identified for all three conditions. Allergic sensitization was a strong risk factor for current asthma (OR 4.1 CI 2.7-6.3) and current rhinitis (OR 5.1 CI 3.8-6.9) but not so for current eczema. Obesity was a risk factor for current asthma and current rhinitis, while farm childhood decreased the risk for current asthma and current rhinitis. Occupational exposure to gas dust or fumes and female sex was associated with an increased risk of current asthma and current eczema. CONCLUSIONS There are different risk factor patterns for asthma, rhinitis and eczema in adults but some risk factors are overlapping between some of the conditions. The effect of mutable risk factors should be assessed further in longitudinal studies.
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Affiliation(s)
- Erik P Rönmark
- Department of Internal Medicine, Krefting Research Centre, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Box 424, 405 30 Gothenburg, Sweden
| | - Linda Ekerljung
- Department of Internal Medicine, Krefting Research Centre, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Box 424, 405 30 Gothenburg, Sweden
| | - Roxana Mincheva
- Department of Internal Medicine, Krefting Research Centre, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Box 424, 405 30 Gothenburg, Sweden
| | | | - Stig Hagstad
- Department of Internal Medicine, Krefting Research Centre, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Box 424, 405 30 Gothenburg, Sweden
| | - Göran Wennergren
- Department of Paediatrics, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Eva Rönmark
- Environmental and Occupational Medicine, The OLIN Unit, Department of Public Health and Clinical Medicine, University of Umeå, Umeå, Sweden
| | - Jan Lötvall
- Department of Internal Medicine, Krefting Research Centre, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Box 424, 405 30 Gothenburg, Sweden
| | - Bo Lundbäck
- Department of Internal Medicine, Krefting Research Centre, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Box 424, 405 30 Gothenburg, Sweden
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Gupta S, Moosa D, MacPherson A, Allen C, Tamari IE. Effects of a 12-month multi-faceted mentoring intervention on knowledge, quality, and usage of spirometry in primary care: a before-and-after study. BMC Pulm Med 2016; 16:56. [PMID: 27103316 PMCID: PMC4839111 DOI: 10.1186/s12890-016-0220-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Accepted: 04/13/2016] [Indexed: 11/10/2022] Open
Abstract
Background Asthma is among the most common chronic diseases in adults. International guidelines have emphasized the importance of regular spirometry for asthma control evaluation. However, spirometry use in primary care remains low across jurisdictions. We sought to design and evaluate a knowledge translation intervention to address both the poor quality of spirometry and the underuse of spirometry in primary care. Methods We designed a 1-year intervention consisting of initial interactive education and hands-on training followed by unstructured peer expert mentoring (through an online portal, email, telephone, videoconference, fax, and/or in-person). We recruited physician and allied health mentees from across primary care sites in Ontario, Canada. We compared spirometry-related knowledge immediately before and after the 1-year intervention period and the quality of spirometry testing and the usage of spirometry in patients with asthma in the year before and the year of the intervention. Results Seven of 10 (70 %) invited sites participated, including 25/90 (28 %) invited allied health mentees and 23/68 (34 %) invited physician mentees. We recruited 7 physician mentors and 4 allied health mentors to form 3 mentor-mentee pods. Spirometry knowledge scores increased from 21.4 +/− 3.1 pre- to 27.3 +/− 3.5 (out of 35) (p < 0.01) post-intervention. Spirometry acceptability and repeatability criteria were met by 59/191 (30.9 %) spirometries and 86/193 (44.6 %) spirometries [odds ratio 1.7 (1.0, 3.0)], in the pre-intervention and intervention periods, respectively. Spirometry was ordered in 75/512 (14.6 %) and 129/336 (38.4 %) respiratory visits (p < 0.01), and in 20/3490 (0.6 %) and 36/2649 (1.4 %) non-respiratory visits (p < 0.01), in the pre-intervention and intervention periods, respectively. Conclusions A mentorship-based intervention involving physicians and allied health team members can enhance knowledge, quality, and actual use of spirometry in real world primary care settings. A future controlled study should assess the impact of this intervention on patient outcomes, its cost-effectiveness, and its sustainability. Electronic supplementary material The online version of this article (doi:10.1186/s12890-016-0220-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Samir Gupta
- Department of Medicine, University of Toronto, Toronto, Canada. .,Division of Respirology, Department of Medicine, St. Michael's Hospital, Toronto, Canada. .,Li Ka Shing Knowledge Institute of St. Michael's Hospital, Toronto, Canada. .,, Suite 6042, Bond Wing, 30 Bond St., M5B 1W8, Toronto, ON, Canada.
| | | | | | - Christopher Allen
- Department of Medicine and Firestone Institute for Respiratory Health, McMaster University, Hamilton, Canada
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Glasser I, Wang F, Reardon J, Vergara CD, Salvietti R, Acevedo M, Santana B, Fortunato G. Improving COPD Care in a Medically Underserved Primary Care Clinic: A Qualitative Study of Patient Perspectives. COPD 2016; 13:616-21. [PMID: 26807853 DOI: 10.3109/15412555.2015.1126570] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
We conducted a focus group study in an urban hospital-based primary care teaching clinic serving an indigent and Hispanic (predominantly Puerto Rican) population in New England in order to learn how patients with Chronic Obstructive Lung Disease (COPD) perceive their disease, how they experience their medical care, and the barriers they face managing their disease and following medical recommendations. The research team included medical doctors, nurses, a medical anthropologist, a clinical pharmacist, a hospital interpreter, and a systems analyst. Four focus groups were conducted in Spanish and English in April and May 2014. The demographic characteristics of the 25 focus group participants closely reflected the demographics of the total COPD clinic patients. The participants were predominantly female (72%) and Hispanic (72%) and had a median age of 63. The major themes expressed in the focus groups included: problems living with COPD; coping with complexities of comorbid illnesses; challenges of quitting smoking and maintaining cessation; dealing with second-hand smoke; beliefs and myths about quitting smoking; difficulty paying for and obtaining medications; positive experiences obtaining and managing medications; difficulties in using sleep machines at home; expressions of disappointment with the departure of their doctors; and overall satisfaction with the clinic health care providers. The study led to the creation of an action plan that addresses the concerns expressed by the focus study participants. The action plan is spearheaded by a designated bilingual and bicultural nurse and is now in operation.
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Affiliation(s)
- Irene Glasser
- a Department of Anthropology , Brown University , Providence , Rhode Island , USA
| | - Fei Wang
- b School of Pharmacy , Department of Pharmacy Practice, University of Connecticut , Storrs, Connecticut , USA
| | - Jane Reardon
- c Adult Primary Care Outpatient Clinic , Hartford Hospital , Hartford, Connecticut, USA
| | - Cunegundo D Vergara
- c Adult Primary Care Outpatient Clinic , Hartford Hospital , Hartford, Connecticut, USA
| | - Ralph Salvietti
- c Adult Primary Care Outpatient Clinic , Hartford Hospital , Hartford, Connecticut, USA
| | - Myrtha Acevedo
- c Adult Primary Care Outpatient Clinic , Hartford Hospital , Hartford, Connecticut, USA
| | - Blanca Santana
- c Adult Primary Care Outpatient Clinic , Hartford Hospital , Hartford, Connecticut, USA
| | - Gil Fortunato
- d Department of Research , Hartford Hospital , Hartford , Connecticut , USA
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López-Campos JL, Tan W, Soriano JB. Global burden of COPD. Respirology 2015; 21:14-23. [DOI: 10.1111/resp.12660] [Citation(s) in RCA: 480] [Impact Index Per Article: 53.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Revised: 07/12/2015] [Accepted: 07/23/2015] [Indexed: 12/23/2022]
Affiliation(s)
- José Luis López-Campos
- Unidad Médico-Quirúrgica de Enfermedades Respiratorias, Instituto de Biomedicina de Sevilla (IBiS); Hospital Universitario Virgen del Rocío/Universidad de Sevilla; Sevilla Spain
- CIBER de Enfermedades Respiratorias (CIBERES); Instituto de Salud Carlos III; Madrid Spain
| | - Wan Tan
- James Hogg Research Laboratories; St Paul's Hospital, University of British Columbia Providence Heart and Lung Institute; Vancouver Canada
| | - Joan B. Soriano
- Cátedra UAM-Linde; Instituto de Investigación Hospital Universitario de la Princesa (IISP), Universidad Autónoma de Madrid; Madrid Spain
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Rice MB, Malhotra A. The air we breathe and lung disease. J Thorac Dis 2015; 7:E245-7. [PMID: 26380790 DOI: 10.3978/j.issn.2072-1439.2015.08.02] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Accepted: 07/30/2015] [Indexed: 11/14/2022]
Affiliation(s)
- Mary B Rice
- 1 Division of Pulmonary, Critical Care and Sleep Medicine, Beth Israel Deaconess Medical Center, Boston, MA, USA ; 2 Division of Pulmonary and Critical Care Medicine, University of California, San Diego, CA, USA
| | - Atul Malhotra
- 1 Division of Pulmonary, Critical Care and Sleep Medicine, Beth Israel Deaconess Medical Center, Boston, MA, USA ; 2 Division of Pulmonary and Critical Care Medicine, University of California, San Diego, CA, USA
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Pleasants RA, Heidari K, Wheaton AG, Ohar JA, Strange C, Croft JB, Liao W, Mannino DM, Kraft M. Targeting Persons With or At High Risk for Chronic Obstructive Pulmonary Disease by State-based Surveillance. COPD 2015; 12:680-9. [PMID: 26367193 PMCID: PMC4674427 DOI: 10.3109/15412555.2015.1043424] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
UNLABELLED The Behavioral Risk Factor Surveillance System (BRFSS) survey is used to estimate chronic obstructive pulmonary disease (COPD) prevalence and could be expanded to describe respiratory symptoms in the general population and to characterize persons with or at high risk for the disease. Tobacco duration and respiratory symptom questions were added to the 2012 South Carolina BRFSS. Data concerning sociodemographics, chronic illnesses, health behaviors, and respiratory symptoms were collected in 9438 adults ≥ 35 years-old. Respondents were categorized as having COPD, high risk, or low risk for the disease. High risk was defined as no self-reported COPD, ≥ 10 years' tobacco use, and ≥ 1 respiratory symptom (frequent productive cough or shortness of breath (SOB), or breathing problems affecting activities). Prevalence of self-reported and high-risk COPD were 9.1% and 8.0%, respectively. Overall, 17.3%, 10.6%, and 5.2% of all respondents reported activities limited by breathing problems, frequent productive cough, and frequent SOB, respectively. The high-risk group was more likely than the COPD group to report a productive cough and breathing problems limiting activities as well as being current smokers, male, and African-American. Health impairment was more severe in the COPD than the high-risk group, and both were worse than the low-risk group. CONCLUSIONS Persons at high risk for COPD share many, but not all, of the characteristics of persons diagnosed with the disease. Additional questions addressing smoking duration and respiratory symptoms in the BRFSS identifies groups at high risk for having or developing COPD who may benefit from smoking cessation and case-finding interventions.
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Affiliation(s)
- Roy A. Pleasants
- Division of Pulmonary, Allergy, and Critical Care Medicine, Duke University School of Medicine, and Durham VA Medical Center, Durham, North Carolina, USA
| | - Khosrow Heidari
- Chronic Disease Epidemiology Office, South Carolina Department of Health and Environmental Control, Columbia, South Carolina, USA
| | - Anne G. Wheaton
- Division of Population Health, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Jill A. Ohar
- Section on Pulmonary, Critical Care, Allergy & Immunologic Disease, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA
| | - Charlie Strange
- Division of Pulmonary, Critical Care, Allergy and Sleep Medicine, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Janet B. Croft
- Division of Population Health, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Winston Liao
- Consultant, North Carolina COPD Taskforce, Cary, North Carolina, USA
| | - David M. Mannino
- Division of Pulmonary, Critical Care, and Sleep Medicine, Pulmonary Epidemiology Research Laboratory, University of Kentucky, Lexington, Kentucky, USA
| | - Monica Kraft
- Department of Medicine, University of Arizona College of Medicine, Tucson, Arizona, USA
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Liu Y, Pleasants RA, Croft JB, Wheaton AG, Heidari K, Malarcher AM, Ohar JA, Kraft M, Mannino DM, Strange C. Smoking duration, respiratory symptoms, and COPD in adults aged ≥45 years with a smoking history. Int J Chron Obstruct Pulmon Dis 2015; 10:1409-16. [PMID: 26229460 PMCID: PMC4516194 DOI: 10.2147/copd.s82259] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND The purpose of this study was to assess the relationship of smoking duration with respiratory symptoms and history of chronic obstructive pulmonary disease (COPD) in the South Carolina Behavioral Risk Factor Surveillance System survey in 2012. METHODS Data from 4,135 adults aged ≥45 years with a smoking history were analyzed using multivariable logistic regression that accounted for sex, age, race/ethnicity, education, and current smoking status, as well as the complex sampling design. RESULTS The distribution of smoking duration ranged from 19.2% (1-9 years) to 36.2% (≥30 years). Among 1,454 respondents who had smoked for ≥30 years, 58.3% were current smokers, 25.0% had frequent productive cough, 11.2% had frequent shortness of breath, 16.7% strongly agreed that shortness of breath affected physical activity, and 25.6% had been diagnosed with COPD. Prevalence of COPD and each respiratory symptom was lower among former smokers who quit ≥10 years earlier compared with current smokers. Smoking duration had a linear relationship with COPD (P<0.001) and all three respiratory symptoms (P<0.001) after adjusting for smoking status and other covariates. While COPD prevalence increased with prolonged smoking duration in both men and women, women had a higher age-adjusted prevalence of COPD in the 1-9 years, 20-29 years, and ≥30 years duration periods. CONCLUSION These state population data confirm that prolonged tobacco use is associated with respiratory symptoms and COPD after controlling for current smoking behavior.
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Affiliation(s)
- Yong Liu
- Division of Population Health, Centers for Disease Control and Prevention, Atlanta, Ga, USA
| | - Roy A Pleasants
- Division of Pulmonary, Allergy, and Critical Care Medicine, Duke University School of Medicine, Durham, NC, USA
| | - Janet B Croft
- Division of Population Health, Centers for Disease Control and Prevention, Atlanta, Ga, USA
| | - Anne G Wheaton
- Division of Population Health, Centers for Disease Control and Prevention, Atlanta, Ga, USA
| | - Khosrow Heidari
- Chronic Disease Epidemiology Office, Department of Health and Environmental Control, South Carolina, SC, USA
| | - Ann M Malarcher
- Office of Smoking and Health, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Jill A Ohar
- Section on Pulmonary, Critical Care, Allergy and Immunologic Disease, Wake Forest University, Winston Salem, NC, USA
| | - Monica Kraft
- Department of Medicine, University of Arizona, Phoenix, AZ, USA
| | - David M Mannino
- Division of Pulmonary, Critical Care, and Sleep Medicine, Pulmonary Epidemiology Research Laboratory, University of Kentucky, Lexington, KY, USA
| | - Charlie Strange
- Division of Pulmonary, Critical Care, Allergy and Sleep Medicine, Medical University of South Carolina, Charleston, SC, USA
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Mitsiki E, Bania E, Varounis C, Gourgoulianis KI, Alexopoulos EC. Characteristics of prevalent and new COPD cases in Greece: the GOLDEN study. Int J Chron Obstruct Pulmon Dis 2015; 10:1371-82. [PMID: 26229456 PMCID: PMC4516213 DOI: 10.2147/copd.s81468] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Background Greece has one of the highest rates of smoking and chronic obstructive pulmonary disease (COPD) in Europe. Aim The study aimed to record both the disease characteristics among a sample of Greek COPD patients and the nationwide rates of newly diagnosed COPD cases. Methods In this noninterventional, epidemiological cross-sectional study, a representative nationwide sample of 45 respiratory centers provided data on the following: 1) the demographic and clinical characteristics of COPD patients and 2) newly diagnosed COPD cases monitored over a period of 6 months by each physician. Results Data from 6,125 COPD patients were collected. Advanced age (median age: 68 years), male predominance (71.3%), largely overweight status with median body mass index (BMI) =27.5 kg/m2, high percentage of current and ex-smokers (89.8%), and presence of comorbidities (81.9%) were evident in the sample. According to the Global Initiative for Chronic Obstructive Lung Disease (GOLD) 2011 criteria, majority of the COPD patients had moderate or severe airflow limitation (61%). Severity of airflow limitation was significantly associated with older age, male sex, obesity, ex-smoking status, and presence of comorbidity (all P-values <0.001). A total of 61.3% of the patients received medication, mostly bronchodilators (64.4%) and fixed-dose combinations of long-acting β2-agonists and inhaled corticosteroids (39.9%), while 35.9% reported taking medication on demand. The majority (81.1%) of patients reported a preference for fewer inhalations of their bronchodilator therapy. Based on the mixed-effect Poisson model, the rate of newly diagnosed COPD cases was estimated to be 18.2% (95% confidence interval: 14.9–22.3) per pulmonologist/3 months. Of those newly diagnosed, the majority of patients had mild or moderate airflow limitation (78.2%). Conclusion The Greek Obstructive Lung Disease Epidemiology and health ecoNomics study reflected the real-life profile of COPD patients and provided evidence on the profile of new COPD cases in Greece. Various demographic factors were delineated, which can assist in designing more effective diagnostic and management strategies for COPD in Greece.
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Affiliation(s)
| | - Eleni Bania
- Department of Respiratory Medicine, Medical School, University of Thessaly, University Hospital of Larissa, Larissa, Greece
| | | | - Konstantinos I Gourgoulianis
- Department of Respiratory Medicine, Medical School, University of Thessaly, University Hospital of Larissa, Larissa, Greece
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