{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,30]],"date-time":"2026-10-30T18:55:20Z","timestamp":1793386520661,"version":"4.5.0"},"reference-count":35,"publisher":"Elsevier BV","issue":"10","license":[{"start":{"date-parts":[[2021,10,1]],"date-time":"2021-10-01T00:00:00Z","timestamp":1633046400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2021,10,1]],"date-time":"2021-10-01T00:00:00Z","timestamp":1633046400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"},{"start":{"date-parts":[[2021,10,1]],"date-time":"2021-10-01T00:00:00Z","timestamp":1633046400000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-017"},{"start":{"date-parts":[[2021,10,1]],"date-time":"2021-10-01T00:00:00Z","timestamp":1633046400000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-037"},{"start":{"date-parts":[[2021,10,1]],"date-time":"2021-10-01T00:00:00Z","timestamp":1633046400000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-012"},{"start":{"date-parts":[[2021,10,1]],"date-time":"2021-10-01T00:00:00Z","timestamp":1633046400000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-029"},{"start":{"date-parts":[[2021,10,1]],"date-time":"2021-10-01T00:00:00Z","timestamp":1633046400000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-004"}],"content-domain":{"domain":["amjmed.com","clinicalkey.com","clinicalkey.com.au","clinicalkey.es","clinicalkey.fr","clinicalkey.jp","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["The American Journal of Medicine"],"published-print":{"date-parts":[[2021,10]]},"DOI":"10.1016\/j.amjmed.2021.05.008","type":"journal-article","created":{"date-parts":[[2021,6,12]],"date-time":"2021-06-12T06:24:20Z","timestamp":1623479060000},"page":"1252-1259.e3","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":50,"title":["Population Decline in COPD Admissions During the COVID-19 Pandemic Associated with Lower Burden of Community Respiratory Viral Infections"],"prefix":"10.1016","volume":"134","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5026-1511","authenticated-orcid":false,"given":"Jennifer Y.","family":"So","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0537-3474","authenticated-orcid":false,"given":"Nathan N.","family":"O'Hara","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9421-121X","authenticated-orcid":false,"given":"Blaine","family":"Kenaa","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"John G.","family":"Williams","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christopher L.","family":"deBorja","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6900-9220","authenticated-orcid":false,"given":"Julia F.","family":"Slejko","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zafar","family":"Zafari","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5611-4694","authenticated-orcid":false,"given":"Michael","family":"Sokolow","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5403-0377","authenticated-orcid":false,"given":"Paul","family":"Zimand","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Meagan","family":"Deming","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4864-5954","authenticated-orcid":false,"given":"Jason","family":"Marx","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5863-9726","authenticated-orcid":false,"given":"Andrew N.","family":"Pollak","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4681-7070","authenticated-orcid":false,"given":"Robert M.","family":"Reed","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"78","reference":[{"key":"10.1016\/j.amjmed.2021.05.008_bib0001","unstructured":"Centers for Disease Control and Prevention (CDC). Selected respiratory diseases among adults aged 18 and over, by selected characteristics: United States, 2018. National Health Interview Survey: Tables of Summary Health Statistics. Available at: https:\/\/ftp.cdc.gov\/pub\/Health_Statistics\/NCHS\/NHIS\/SHS\/2018_SHS_Table_A-2.pdf. Accessed September 30, 2020."},{"key":"10.1016\/j.amjmed.2021.05.008_bib0002","unstructured":"Centers for Disease Control and Prevention (CDC). National Center for Health Statistics. Chronic obstructive pulmonary disease (COPD) includes: chronic bronchitis and emphysema. Available at: https:\/\/www.cdc.gov\/nchs\/fastats\/copd.htm. Accessed October 25, 2020."},{"key":"10.1016\/j.amjmed.2021.05.008_bib0003","unstructured":"Agency for Healthcare Research and Quality (AHRQ). HCUP Fast Stats\u2013Most Common Diagnoses for Inpatient Stays. Available at: https:\/\/www.hcup-us.ahrq.gov\/faststats\/NationalDiagnosesServlet. Accessed October 20, 2020."},{"issue":"11","key":"10.1016\/j.amjmed.2021.05.008_bib0004","doi-asserted-by":"crossref","first-page":"1575","DOI":"10.1016\/j.rmed.2008.06.006","article-title":"Respiratory viral infection in exacerbations of COPD","volume":"102","author":"McManus","year":"2008","journal-title":"Respir Med"},{"issue":"5 Pt 1","key":"10.1016\/j.amjmed.2021.05.008_bib0005","doi-asserted-by":"crossref","first-page":"1418","DOI":"10.1164\/ajrccm.157.5.9709032","article-title":"Effect of exacerbation on quality of life in patients with chronic obstructive pulmonary disease","volume":"157","author":"Seemungal","year":"1998","journal-title":"Am J Respir Crit Care Med"},{"issue":"10","key":"10.1016\/j.amjmed.2021.05.008_bib0006","doi-asserted-by":"crossref","first-page":"847","DOI":"10.1136\/thorax.57.10.847","article-title":"Relationship between exacerbation frequency and lung function decline in chronic obstructive pulmonary disease","volume":"57","author":"Donaldson","year":"2002","journal-title":"Thorax"},{"issue":"11","key":"10.1016\/j.amjmed.2021.05.008_bib0007","doi-asserted-by":"crossref","first-page":"925","DOI":"10.1136\/thx.2005.040527","article-title":"Severe acute exacerbations and mortality in patients with chronic obstructive pulmonary disease","volume":"60","author":"Soler-Cataluna","year":"2005","journal-title":"Thorax"},{"key":"10.1016\/j.amjmed.2021.05.008_bib0008","article-title":"Disproportionate decline in admissions for exacerbated COPD during the COVID-19 pandemic","author":"Berghaus","year":"2020","journal-title":"Respir Med"},{"issue":"3","key":"10.1016\/j.amjmed.2021.05.008_bib0009","doi-asserted-by":"crossref","first-page":"201","DOI":"10.1016\/j.opresp.2020.06.003","article-title":"Reduction in hospital admissions for COPD exacerbation during the Covid-19 pandemic","volume":"2","author":"Baeza-Mart\u00ednez","year":"2020","journal-title":"Open Respir Arch"},{"issue":"4","key":"10.1016\/j.amjmed.2021.05.008_bib0010","doi-asserted-by":"crossref","first-page":"400","DOI":"10.1056\/NEJMc2014816","article-title":"Collateral effect of Covid-19 on stroke evaluation in the United States","volume":"383","author":"Kansagra","year":"2020","journal-title":"N Engl J Med"},{"issue":"1","key":"10.1016\/j.amjmed.2021.05.008_bib0011","doi-asserted-by":"crossref","first-page":"88","DOI":"10.1056\/NEJMc2009166","article-title":"Reduced rate of hospital admissions for ACS during Covid-19 outbreak in northern Italy","volume":"383","author":"Filippo","year":"2020","journal-title":"N Engl J Med"},{"issue":"11","key":"10.1016\/j.amjmed.2021.05.008_bib0012","doi-asserted-by":"crossref","first-page":"2010","DOI":"10.1377\/hlthaff.2020.00980","article-title":"The impact of the COVID-19 pandemic on hospital admissions in the United States","volume":"39","author":"Birkmeyer","year":"2020","journal-title":"Health Aff (Millwood)"},{"issue":"10","key":"10.1016\/j.amjmed.2021.05.008_bib0013","doi-asserted-by":"crossref","first-page":"1328","DOI":"10.1001\/jamainternmed.2020.3288","article-title":"Trends in emergency department visits and hospital admissions in health care systems in 5 states in the first months of the COVID-19 pandemic in the US","volume":"180","author":"Jeffery","year":"2020","journal-title":"JAMA Intern Med"},{"issue":"37","key":"10.1016\/j.amjmed.2021.05.008_bib0014","doi-asserted-by":"crossref","first-page":"1305","DOI":"10.15585\/mmwr.mm6937a6","article-title":"Decreased influenza activity during the COVID-19 pandemic \u2014 United States, Australia, Chile, and South Africa, 2020","volume":"69","author":"Olsen","year":"2020","journal-title":"MMWR Morb Mortal Wkly Rep"},{"issue":"2","key":"10.1016\/j.amjmed.2021.05.008_bib0015","doi-asserted-by":"crossref","first-page":"387","DOI":"10.1016\/j.jhin.2020.07.023","article-title":"Public health measures during COVID-19 pandemic reduced hospital admissions for community respiratory viral infections","volume":"106","author":"Tan","year":"2020","journal-title":"J Hosp Infect"},{"issue":"2","key":"10.1016\/j.amjmed.2021.05.008_bib0016","doi-asserted-by":"crossref","first-page":"317","DOI":"10.1378\/chest.129.2.317","article-title":"Effect of interactions between lower airway bacterial and rhinoviral infection in exacerbations of COPD","volume":"129","author":"Wilkinson","year":"2006","journal-title":"Chest"},{"issue":"9","key":"10.1016\/j.amjmed.2021.05.008_bib0017","doi-asserted-by":"crossref","first-page":"1618","DOI":"10.1164\/ajrccm.164.9.2105011","article-title":"Respiratory viruses, symptoms, and inflammatory markers in acute exacerbations and stable chronic obstructive pulmonary disease","volume":"164","author":"Seemungal","year":"2001","journal-title":"Am J Respir Crit Care Med"},{"issue":"10","key":"10.1016\/j.amjmed.2021.05.008_bib0018","doi-asserted-by":"crossref","first-page":"1114","DOI":"10.1164\/rccm.200506-859OC","article-title":"Infections and airway inflammation in chronic obstructive pulmonary disease severe exacerbations","volume":"173","author":"Papi","year":"2006","journal-title":"Am J Respir Crit Care Med"},{"issue":"6","key":"10.1016\/j.amjmed.2021.05.008_bib0019","doi-asserted-by":"crossref","first-page":"1226","DOI":"10.1016\/S0735-1097(98)00098-9","article-title":"Seasonal distribution of acute myocardial infarction in the second National Registry of Myocardial Infarction","volume":"31","author":"Spencer","year":"1998","journal-title":"J Am Coll Cardiol"},{"issue":"21","key":"10.1016\/j.amjmed.2021.05.008_bib0020","doi-asserted-by":"crossref","first-page":"1760","DOI":"10.1136\/hrt.2009.175000","article-title":"Effects of ambient temperature on the incidence of myocardial infarction","volume":"95","author":"Bhaskaran","year":"2009","journal-title":"Heart"},{"issue":"5","key":"10.1016\/j.amjmed.2021.05.008_bib0021","doi-asserted-by":"crossref","first-page":"760","DOI":"10.1016\/S0735-1097(02)01685-6","article-title":"Heart failure in a cold climate seasonal variation in heart failure-related morbidity and mortality","volume":"39","author":"Stewart","year":"2002","journal-title":"J Am Coll Cardiol"},{"issue":"6","key":"10.1016\/j.amjmed.2021.05.008_bib0022","doi-asserted-by":"crossref","first-page":"779","DOI":"10.1016\/S1388-9842(02)00116-2","article-title":"Annual rates of admission and seasonal variations in hospitalizations for heart failure","volume":"4","author":"Martinez-Selles","year":"2002","journal-title":"Eur J Heart Fail"},{"key":"10.1016\/j.amjmed.2021.05.008_bib0023","unstructured":"Centers for Disease Control and Prevention (CDC). The National Respiratory and Enteric Virus Surveillance System (NREVSS). Available at: https:\/\/www.cdc.gov\/surveillance\/nrevss\/index.html. Accessed November 7, 2020."},{"issue":"11","key":"10.1016\/j.amjmed.2021.05.008_bib0024","doi-asserted-by":"crossref","first-page":"1245","DOI":"10.1016\/0895-4356(94)90129-5","article-title":"Validation of a combined comorbidity index","volume":"47","author":"Charlson","year":"1994","journal-title":"J Clin Epidemiol"},{"issue":"5","key":"10.1016\/j.amjmed.2021.05.008_bib0025","doi-asserted-by":"crossref","first-page":"e10","DOI":"10.1016\/S2352-4642(20)30108-5","article-title":"Delayed access or provision of care in Italy resulting from fear of COVID-19","volume":"4","author":"Lazzerini","year":"2020","journal-title":"Lancet Child Adolesc Health"},{"issue":"24","key":"10.1016\/j.amjmed.2021.05.008_bib0026","doi-asserted-by":"crossref","first-page":"2368","DOI":"10.1056\/NEJMms2009984","article-title":"The untold toll - the pandemic's effects on patients without Covid-19","volume":"382","author":"Rosenbaum","year":"2020","journal-title":"N Engl J Med"},{"issue":"5","key":"10.1016\/j.amjmed.2021.05.008_bib0027","doi-asserted-by":"crossref","first-page":"965","DOI":"10.1016\/j.dsx.2020.06.042","article-title":"Impact of COVID-19 on routine care for chronic diseases: a global survey of views from healthcare professionals","volume":"14","author":"Chudasama","year":"2020","journal-title":"Diabetes Metab Syndr"},{"issue":"18","key":"10.1016\/j.amjmed.2021.05.008_bib0028","doi-asserted-by":"crossref","first-page":"1679","DOI":"10.1056\/NEJMp2003539","article-title":"Virtually perfect? Telemedicine for Covid-19","volume":"382","author":"Hollander","year":"2020","journal-title":"N Engl J Med"},{"key":"10.1016\/j.amjmed.2021.05.008_bib0029","series-title":"Air monitoring: quality of air monthly reports","year":"2020"},{"issue":"7","key":"10.1016\/j.amjmed.2021.05.008_bib0030","doi-asserted-by":"crossref","first-page":"2384","DOI":"10.1016\/j.jaip.2020.04.053","article-title":"Changes in medication adherence among patients with asthma and COPD during the COVID-19 pandemic","volume":"8","author":"Kaye","year":"2020","journal-title":"J Allergy Clin Immunol Pract"},{"key":"10.1016\/j.amjmed.2021.05.008_bib0031","doi-asserted-by":"crossref","DOI":"10.1016\/j.ijnurstu.2020.103726","article-title":"Will the tobacco industry ultimately triumph in the midst of COVID-19 pandemic?: a call for nurses' action in tobacco control","volume":"115","author":"Lee","year":"2021","journal-title":"Int J Nurs Stud"},{"issue":"2","key":"10.1016\/j.amjmed.2021.05.008_bib0034","doi-asserted-by":"crossref","first-page":"e68","DOI":"10.1016\/j.jinf.2020.04.035","article-title":"Unintended consequence: influenza plunges with public health response to COVID-19 in Singapore","volume":"81","author":"Chow","year":"2020","journal-title":"J Infect"},{"issue":"4","key":"10.1016\/j.amjmed.2021.05.008_bib0035","doi-asserted-by":"crossref","first-page":"1021","DOI":"10.1016\/j.chest.2015.12.039","article-title":"Age-related differences in the rate, timing, and diagnosis of 30-day readmissions in hospitalized adults with asthma exacerbation","volume":"149","author":"Hasegawa","year":"2016","journal-title":"Chest"},{"key":"10.1016\/j.amjmed.2021.05.008_bib0036","doi-asserted-by":"crossref","first-page":"92","DOI":"10.1016\/j.rmed.2017.07.058","article-title":"Trends in 30-day readmission rates after COPD hospitalization, 2006-2012","volume":"130","author":"Goto","year":"2017","journal-title":"Respir Med"},{"issue":"4","key":"10.1016\/j.amjmed.2021.05.008_bib0037","doi-asserted-by":"crossref","first-page":"2005","DOI":"10.1378\/chest.128.4.2005","article-title":"Comorbidity and mortality in COPD-related hospitalizations in the United States, 1979 to 2001","volume":"128","author":"Holguin","year":"2005","journal-title":"Chest"}],"container-title":["The American Journal of Medicine"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0002934321003557?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0002934321003557?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2025,9,11]],"date-time":"2025-09-11T09:26:09Z","timestamp":1757582769000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S0002934321003557"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,10]]},"references-count":35,"journal-issue":{"issue":"10","published-print":{"date-parts":[[2021,10]]}},"alternative-id":["S0002934321003557"],"URL":"https:\/\/doi.org\/10.1016\/j.amjmed.2021.05.008","relation":{"has-preprint":[{"id-type":"doi","id":"10.1101\/2021.05.18.21257383","asserted-by":"object"}]},"ISSN":["0002-9343"],"issn-type":[{"value":"0002-9343","type":"print"}],"subject":[],"published":{"date-parts":[[2021,10]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"Population Decline in COPD Admissions During the COVID-19 Pandemic Associated with Lower Burden of Community Respiratory Viral Infections","name":"articletitle","label":"Article Title"},{"value":"The American Journal of Medicine","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.amjmed.2021.05.008","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"\u00a9 2021 Elsevier Inc. All rights reserved.","name":"copyright","label":"Copyright"}]}}