{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,6]],"date-time":"2026-06-06T23:50:21Z","timestamp":1780789821687,"version":"3.54.1"},"reference-count":92,"publisher":"Elsevier BV","issue":"6","license":[{"start":{"date-parts":[[2023,6,1]],"date-time":"2023-06-01T00:00:00Z","timestamp":1685577600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2023,6,1]],"date-time":"2023-06-01T00:00:00Z","timestamp":1685577600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"}],"content-domain":{"domain":["clinicalkey.com","clinicalkey.com.au","clinicalkey.es","clinicalkey.fr","clinicalkey.jp","jamda.com","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["Journal of the American Medical Directors Association"],"published-print":{"date-parts":[[2023,6]]},"DOI":"10.1016\/j.jamda.2023.03.011","type":"journal-article","created":{"date-parts":[[2023,3,21]],"date-time":"2023-03-21T04:11:55Z","timestamp":1679371915000},"page":"846-854","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":17,"title":["The Impact of COVID-19 on the Prevalence, Mortality, and Associated Risk Factors for Mortality in Patients with Hip Fractures: A Meta-Analysis"],"prefix":"10.1016","volume":"24","author":[{"given":"Lifeng","family":"Ding","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jingzan","family":"Wei","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bin","family":"Wang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"78","reference":[{"key":"10.1016\/j.jamda.2023.03.011_bib2","doi-asserted-by":"crossref","first-page":"5062","DOI":"10.3390\/ijerph17145062","article-title":"Clinical presentation of COVID-19: case series and review of the literature","volume":"17","author":"Macera","year":"2020","journal-title":"Int J Environ Res Public Health"},{"key":"10.1016\/j.jamda.2023.03.011_bib3","doi-asserted-by":"crossref","first-page":"1742","DOI":"10.1186\/s12889-020-09826-8","article-title":"COVID-19 mortality risk for older men and women","volume":"20","author":"Yanez","year":"2020","journal-title":"BMC Publ Health"},{"key":"10.1016\/j.jamda.2023.03.011_bib4","doi-asserted-by":"crossref","first-page":"16","DOI":"10.1038\/d41586-020-02483-2","article-title":"The coronavirus is most deadly if you are older and male\u2013new data reveal the risks","volume":"585","author":"Mallapaty","year":"2020","journal-title":"Nature"},{"key":"10.1016\/j.jamda.2023.03.011_bib5","doi-asserted-by":"crossref","first-page":"950","DOI":"10.1016\/j.injury.2019.03.031","article-title":"The impact of time to surgery after hip fracture on mortality at 30- and 90-days: Does a single benchmark apply to all?","volume":"50","author":"Beaupre","year":"2019","journal-title":"Injury"},{"key":"10.1016\/j.jamda.2023.03.011_bib6","doi-asserted-by":"crossref","first-page":"126","DOI":"10.1007\/s11657-013-0126-3","article-title":"A\u00a0health economic analysis of osteoporotic fractures: who carries the burden?","volume":"8","author":"Hansen","year":"2013","journal-title":"Arch Osteoporos"},{"key":"10.1016\/j.jamda.2023.03.011_bib7","first-page":"98","article-title":"Dual mobility total hip arthroplasty in the treatment of femoral neck fractures: a retrospective evaluation at mid-term follow-up","volume":"90","author":"Canton","year":"2019","journal-title":"Acta Biomed"},{"key":"10.1016\/j.jamda.2023.03.011_bib8","doi-asserted-by":"crossref","first-page":"1994","DOI":"10.1001\/jama.2017.17606","article-title":"Association between wait time and 30-day mortality in adults undergoing hip fracture surgery","volume":"318","author":"Pincus","year":"2017","journal-title":"JAMA"},{"key":"10.1016\/j.jamda.2023.03.011_bib9","first-page":"483","article-title":"Early mortality after hip fracture: is delay before surgery important?","volume":"87","author":"Moran","year":"2005","journal-title":"J\u00a0Bone Joint Surg Am"},{"key":"10.1016\/j.jamda.2023.03.011_bib10","doi-asserted-by":"crossref","first-page":"804","DOI":"10.1177\/1120700020947954","article-title":"Development of a new comprehensive preoperative risk score for predicting 1-year mortality in patients with hip fracture: the HULP-HF score. Comparison with 3 other risk prediction models","volume":"31","author":"Men\u00e9ndez-Colino","year":"2021","journal-title":"Hip Int"},{"key":"10.1016\/j.jamda.2023.03.011_bib11","doi-asserted-by":"crossref","first-page":"1219","DOI":"10.1302\/0301-620X.102B9.BJJ-2020-1100.R1","article-title":"IMPACT-scot report on COVID-19 and hip fractures","volume":"102-b","author":"Hall","year":"2020","journal-title":"Bone Joint Lett J"},{"key":"10.1016\/j.jamda.2023.03.011_bib12","doi-asserted-by":"crossref","first-page":"1774","DOI":"10.1302\/0301-620X.102B12.BJJ-2020-1395.R2","article-title":"IMPACT-restart: the influence of COVID-19 on postoperative mortality and risk factors associated with SARS-CoV-2 infection after orthopaedic and trauma surgery","volume":"102-b","author":"Clement","year":"2020","journal-title":"Bone Joint Lett J"},{"key":"10.1016\/j.jamda.2023.03.011_bib13","first-page":"1440","article-title":"Elective surgery cancellations due to the COVID-19 pandemic: global predictive modelling to inform surgical recovery plans","volume":"107","author":"Collaborative","year":"2020","journal-title":"Br J Surg"},{"key":"10.1016\/j.jamda.2023.03.011_bib14","doi-asserted-by":"crossref","first-page":"659","DOI":"10.1007\/s00068-021-01634-y","article-title":"Mortality among hip fracture patients infected with COVID-19 perioperatively","volume":"47","author":"Fessler","year":"2021","journal-title":"Eur J Trauma Emerg Surg"},{"key":"10.1016\/j.jamda.2023.03.011_bib15","doi-asserted-by":"crossref","first-page":"873","DOI":"10.1302\/2046-3758.912.BJR-2020-0473.R1","article-title":"The prevalence, mortality, and associated risk factors for developing COVID-19 in hip fracture patients: a systematic review and meta-analysis","volume":"9","author":"Clement","year":"2020","journal-title":"Bone Joint Res"},{"key":"10.1016\/j.jamda.2023.03.011_bib16","doi-asserted-by":"crossref","first-page":"10157","DOI":"10.1038\/s41598-021-89617-2","article-title":"Meta-analysis and metaregression of risk factors associated with mortality in hip fracture patients during the COVID-19 pandemic","volume":"11","author":"Raheman","year":"2021","journal-title":"Sci Rep"},{"key":"10.1016\/j.jamda.2023.03.011_bib17","doi-asserted-by":"crossref","first-page":"b2535","DOI":"10.1136\/bmj.b2535","article-title":"Preferred reporting items for systematic reviews and meta-analyses: the PRISMA statement","volume":"339","author":"Moher","year":"2009","journal-title":"Bmj"},{"key":"10.1016\/j.jamda.2023.03.011_bib18","series-title":"The Newcastle-Ottawa Scale (NOS) for Assessing the Quality of Nonrandomized Studies in Meta-Analyses\u20263rd Symposium on Systematic Reviews: Beyond the Basics","first-page":"3","author":"Wells","year":"2000"},{"key":"10.1016\/j.jamda.2023.03.011_bib19","doi-asserted-by":"crossref","first-page":"557","DOI":"10.1136\/bmj.327.7414.557","article-title":"Measuring inconsistency in meta-analyses","volume":"327","author":"Higgins","year":"2003","journal-title":"Bmj"},{"key":"10.1016\/j.jamda.2023.03.011_bib20","doi-asserted-by":"crossref","first-page":"177","DOI":"10.1016\/0197-2456(86)90046-2","article-title":"Meta-analysis in clinical trials","volume":"7","author":"DerSimonian","year":"1986","journal-title":"Control Clin Trials"},{"key":"10.1016\/j.jamda.2023.03.011_bib21","first-page":"719","article-title":"Statistical aspects of the analysis of data from retrospective studies of disease","volume":"22","author":"Mantel","year":"1959","journal-title":"J\u00a0Natl Cancer Inst"},{"key":"10.1016\/j.jamda.2023.03.011_bib22","doi-asserted-by":"crossref","first-page":"1148","DOI":"10.1093\/ije\/dyn065","article-title":"Sensitivity of between-study heterogeneity in meta-analysis: proposed metrics and empirical evaluation","volume":"37","author":"Patsopoulos","year":"2008","journal-title":"Int J Epidemiol"},{"key":"10.1016\/j.jamda.2023.03.011_bib23","doi-asserted-by":"crossref","first-page":"629","DOI":"10.1136\/bmj.315.7109.629","article-title":"Bias in meta-analysis detected by a simple, graphical test","volume":"315","author":"Egger","year":"1997","journal-title":"Bmj"},{"key":"10.1016\/j.jamda.2023.03.011_bib24","doi-asserted-by":"crossref","first-page":"1088","DOI":"10.2307\/2533446","article-title":"Operating characteristics of a rank correlation test for publication bias","volume":"50","author":"Begg","year":"1994","journal-title":"Biometrics"},{"key":"10.1016\/j.jamda.2023.03.011_bib25","doi-asserted-by":"crossref","first-page":"23","DOI":"10.1007\/s00264-020-04739-y","article-title":"Thirty-day mortality following surgical management of hip fractures during the COVID-19 pandemic: findings from a prospective multi-centre UK study","volume":"45","author":"Narang","year":"2021","journal-title":"Int Orthop"},{"key":"10.1016\/j.jamda.2023.03.011_bib26","doi-asserted-by":"crossref","first-page":"1887","DOI":"10.1007\/s00264-020-04769-6","article-title":"Prolonged social lockdown during COVID-19 pandemic and hip fracture epidemiology","volume":"44","author":"Slullitel","year":"2020","journal-title":"Int Orthop"},{"key":"10.1016\/j.jamda.2023.03.011_bib27","doi-asserted-by":"crossref","first-page":"341","DOI":"10.1007\/s00590-020-02778-0","article-title":"30-day mortality for fractured neck of femur patients with concurrent COVID-19 infection","volume":"31","author":"Dupley","year":"2021","journal-title":"Eur J Orthop Surg Traumatol"},{"key":"10.1016\/j.jamda.2023.03.011_bib28","doi-asserted-by":"crossref","first-page":"1327","DOI":"10.1007\/s00068-021-01649-5","article-title":"Increased 30-day mortality rate in patients admitted with hip fractures during the COVID-19 pandemic in the UK","volume":"47","author":"Barker","year":"2021","journal-title":"Eur J Trauma Emerg Surg"},{"issue":"Suppl 4","key":"10.1016\/j.jamda.2023.03.011_bib29","doi-asserted-by":"crossref","first-page":"S442","DOI":"10.1016\/j.jcot.2020.06.042","article-title":"Outcome of trauma and orthopaedic surgery at a UK District General Hospital during the Covid-19 pandemic","volume":"11","author":"Sobti","year":"2020","journal-title":"J\u00a0Clin Orthop Trauma"},{"key":"10.1016\/j.jamda.2023.03.011_bib30","first-page":"332","article-title":"Management of hip fractures during the COVID-19 pandemic at a high-volume hip fracture unit in the United Kingdom","volume":"20","author":"Malik-Tabassum","year":"2020","journal-title":"J\u00a0Orthop"},{"key":"10.1016\/j.jamda.2023.03.011_bib31","doi-asserted-by":"crossref","first-page":"171","DOI":"10.1007\/s00264-021-05269-x","article-title":"Hip fracture mortality in patients co-infected with coronavirus disease 2019: a comparison of the first two waves of the United Kingdom pandemic during the pre-vaccine era","volume":"46","author":"Rashid","year":"2022","journal-title":"Int Orthop"},{"key":"10.1016\/j.jamda.2023.03.011_bib32","doi-asserted-by":"crossref","first-page":"639","DOI":"10.1080\/17453674.2020.1816617","article-title":"Delayed surgery versus nonoperative treatment for hip fractures in post-COVID-19 arena: a retrospective study of 145 patients","volume":"91","author":"Mi","year":"2020","journal-title":"Acta Orthop"},{"key":"10.1016\/j.jamda.2023.03.011_bib33","doi-asserted-by":"crossref","DOI":"10.1177\/21514593211024509","article-title":"Hip Fractures in the Elderly During the COVID-19 Pandemic: A Latin-American Perspective With a Minimum 90-Day Follow-Up","volume":"12","author":"Zamora","year":"2021","journal-title":"Geriatr Orthop Surg Rehabil"},{"key":"10.1016\/j.jamda.2023.03.011_bib34","doi-asserted-by":"crossref","DOI":"10.1177\/21514593211036785","article-title":"Impact of Sars-Cov-2 pandemic on hip fractures: Clinical and radiographic outcomes","volume":"12","author":"Garc\u00eda-Seisdedos P\u00e9rez-Tabernero","year":"2021","journal-title":"Geriatr Orthop Surg Rehabil"},{"key":"10.1016\/j.jamda.2023.03.011_bib35","doi-asserted-by":"crossref","DOI":"10.1177\/21514593211040611","article-title":"Increased Comorbidity Burden Among Hip Fracture Patients During the COVID-19 Pandemic in New York City","volume":"12","author":"LeBrun","year":"2021","journal-title":"Geriatr Orthop Surg Rehabil"},{"key":"10.1016\/j.jamda.2023.03.011_bib36","first-page":"15","article-title":"Early mortality in hip fracture patients admitted during first wave of the COVID-19 pandemic in Northern Italy: a multicentre study","volume":"22","author":"Dallari","year":"2021","journal-title":"J\u00a0Orthop Traumatol"},{"key":"10.1016\/j.jamda.2023.03.011_bib37","doi-asserted-by":"crossref","first-page":"1136","DOI":"10.1302\/0301-620X.102B9.BJJ-2020-1127.R1","article-title":"The effects of COVID-19 on perioperative morbidity and mortality in patients with hip fractures","volume":"102-b","author":"Kayani","year":"2020","journal-title":"Bone Joint Lett J"},{"key":"10.1016\/j.jamda.2023.03.011_bib38","first-page":"469","article-title":"The impact of the COVID-19 2020 pandemic on hospital length of stay following fragility hip fracture surgery","volume":"23","author":"Shemesh","year":"2021","journal-title":"Isr Med Assoc J"},{"key":"10.1016\/j.jamda.2023.03.011_bib39","first-page":"475","article-title":"Incidence and mortality rate of hip fractures in different age groups during the first wave of the COVID-19 pandemic","volume":"23","author":"Prosso","year":"2021","journal-title":"Isr Med Assoc J"},{"key":"10.1016\/j.jamda.2023.03.011_bib40","doi-asserted-by":"crossref","first-page":"e8","DOI":"10.1055\/s-0041-1741511","article-title":"Short-term hip fracture outcomes during the COVID-19 pandemic","volume":"8","author":"Walters","year":"2022","journal-title":"Surg J"},{"key":"10.1016\/j.jamda.2023.03.011_bib41","doi-asserted-by":"crossref","first-page":"42","DOI":"10.1007\/s11657-022-01078-w","article-title":"Incidence of hip fractures during the COVID-19 pandemic in the Brazilian public health care system","volume":"17","author":"da Silva","year":"2022","journal-title":"Arch Osteoporos"},{"key":"10.1016\/j.jamda.2023.03.011_bib42","doi-asserted-by":"crossref","first-page":"38","DOI":"10.1007\/s11657-022-01086-w","article-title":"One year of the COVID-19 pandemic in Poland-the incidence of osteoporotic forearm, arm, and hip fractures","volume":"17","author":"Wilk","year":"2022","journal-title":"Arch Osteoporos"},{"key":"10.1016\/j.jamda.2023.03.011_bib43","doi-asserted-by":"crossref","first-page":"1005","DOI":"10.1007\/s11845-021-02687-z","article-title":"Impact of COVID-19 pandemic on hip fractures: the central London experience COVID-related urgent geriatric hip trauma (COUGH) study COVERT (COVid emergency-related trauma and orthopaedics) collaborative","volume":"191","author":"Park","year":"2022","journal-title":"Ir J Med Sci"},{"key":"10.1016\/j.jamda.2023.03.011_bib44","doi-asserted-by":"crossref","first-page":"693","DOI":"10.1007\/s11845-022-03002-0","article-title":"Increasing hip fracture volume following repeated lockdowns: an Irish multicentre study of periods pre-Covid, during Covid lockdown and following vaccination","volume":"192","author":"O'Driscoll","year":"2023","journal-title":"Ir J Med Sci"},{"key":"10.1016\/j.jamda.2023.03.011_bib45","doi-asserted-by":"crossref","first-page":"68","DOI":"10.1186\/s12912-022-00848-8","article-title":"The impact of first wave of COVID-19 on the nursing-sensitive and rehabilitation outcomes of patients undergoing hip fracture surgery: a single centre retrospective cohort study","volume":"21","author":"Morri","year":"2022","journal-title":"BMC Nurs"},{"key":"10.1016\/j.jamda.2023.03.011_bib46","doi-asserted-by":"crossref","first-page":"415","DOI":"10.1302\/2633-1462.17.BJO-2020-0077.R1","article-title":"30-day outcomes in hip fracture patients during the COVID-19 pandemic compared to the preceding year","volume":"1","author":"Macey","year":"2020","journal-title":"Bone Jt Open"},{"key":"10.1016\/j.jamda.2023.03.011_bib47","first-page":"479","article-title":"Hip fracture following a fall among older adults during the COVID-19 pandemic","volume":"23","author":"Steinfeld","year":"2021","journal-title":"Isr Med Assoc J"},{"key":"10.1016\/j.jamda.2023.03.011_bib48","doi-asserted-by":"crossref","first-page":"295","DOI":"10.1177\/1460408620951352","article-title":"The impact of COVID-19 infection on hip fractures 30-day mortality","volume":"23","author":"Fadulelmola","year":"2021","journal-title":"Trauma"},{"key":"10.1016\/j.jamda.2023.03.011_bib49","first-page":"446","article-title":"Characteristics and clinical outcomes of hip fracture patients during the first lockdown of COVID-19, lessons learnt: a retrospective cohort analysis","volume":"31","author":"Iyengar","year":"2021","journal-title":"J\u00a0Perioper Pract"},{"key":"10.1016\/j.jamda.2023.03.011_bib50","first-page":"89","article-title":"Proximal femur fractures in COVID-19 emergency: the experience of two Orthopedics and Traumatology Departments in the first eight weeks of the Italian epidemic","volume":"91","author":"Maniscalco","year":"2020","journal-title":"Acta Biomed"},{"key":"10.1016\/j.jamda.2023.03.011_bib51","doi-asserted-by":"crossref","first-page":"530","DOI":"10.1302\/2633-1462.19.BJO-2020-0116.R1","article-title":"COVID-19 pandemic and hip fractures: impact and lessons learned","volume":"1","author":"Arafa","year":"2020","journal-title":"Bone Jt Open"},{"key":"10.1016\/j.jamda.2023.03.011_bib52","doi-asserted-by":"crossref","first-page":"710","DOI":"10.1111\/anae.15323","article-title":"The effects of COVID-19 on hip fracture management and mortality in a regional trauma centre","volume":"76","author":"Craig","year":"2021","journal-title":"Anaesthesia"},{"key":"10.1016\/j.jamda.2023.03.011_bib53","first-page":"e20575","article-title":"Impact of COVID-19 on key performance indicators of the national hip fracture database and the management of hip fracture patients","volume":"13","author":"Waterman","year":"2021","journal-title":"Cureus"},{"key":"10.1016\/j.jamda.2023.03.011_bib54","doi-asserted-by":"crossref","first-page":"395","DOI":"10.1097\/BOT.0000000000001845","article-title":"Increased mortality and major complications in hip fracture care during the COVID-19 pandemic: a New York City perspective","volume":"34","author":"Egol","year":"2020","journal-title":"J\u00a0Orthop Trauma"},{"key":"10.1016\/j.jamda.2023.03.011_bib55","doi-asserted-by":"crossref","first-page":"392","DOI":"10.1302\/2633-1462.17.BJO-2020-0075.R1","article-title":"30-day mortality following trauma and orthopaedic surgery during the peak of the COVID-19 pandemic: a multicentre regional analysis of 484 patients","volume":"1","author":"Karayiannis","year":"2020","journal-title":"Bone Jt Open"},{"key":"10.1016\/j.jamda.2023.03.011_bib56","doi-asserted-by":"crossref","first-page":"1017","DOI":"10.1302\/2633-1462.212.BJO-2021-0102.R1","article-title":"Hip and distal femur fracture outcomes over three successive UK lockdown periods during the COVID-19 pandemic: what have we learnt?: a single-centre retrospective cohort study","volume":"2","author":"Sadiq","year":"2021","journal-title":"Bone Jt Open"},{"key":"10.1016\/j.jamda.2023.03.011_bib57","doi-asserted-by":"crossref","first-page":"e050830","DOI":"10.1136\/bmjopen-2021-050830","article-title":"Outcomes after perioperative SARS-CoV-2 infection in patients with proximal femoral fractures: an international cohort study","volume":"11","year":"2021","journal-title":"BMJ Open"},{"key":"10.1016\/j.jamda.2023.03.011_bib58","doi-asserted-by":"crossref","first-page":"25","DOI":"10.5371\/hp.2022.34.1.25","article-title":"Survivorship analysis in asymptomatic COVID-19+ hip fracture patients: is there an increase in mortality?","volume":"34","author":"Vialonga","year":"2022","journal-title":"Hip Pelvis"},{"key":"10.1016\/j.jamda.2023.03.011_bib59","doi-asserted-by":"crossref","first-page":"5205","DOI":"10.3390\/ijerph18105205","article-title":"Higher 90-day mortality after surgery for hip fractures in patients with COVID-19: a case-control study from a single center in Italy","volume":"18","author":"Grassi","year":"2021","journal-title":"Int J Environ Res Public Health"},{"key":"10.1016\/j.jamda.2023.03.011_bib60","doi-asserted-by":"crossref","first-page":"190","DOI":"10.1302\/2633-1462.16.BJO-2020-0035.R1","article-title":"Evaluating the efficacy of a two-site ('COVID-19' and 'COVID-19-free') trauma and orthopaedic service for the management of hip fractures during the COVID-19 pandemic in the UK","volume":"1","author":"Chui","year":"2020","journal-title":"Bone Jt Open"},{"key":"10.1016\/j.jamda.2023.03.011_bib61","doi-asserted-by":"crossref","first-page":"474","DOI":"10.4055\/cios21123","article-title":"Hip fracture management during the COVID-19 pandemic in South Korea","volume":"13","author":"Chung","year":"2021","journal-title":"Clin Orthop Surg"},{"key":"10.1016\/j.jamda.2023.03.011_bib62","first-page":"1963","article-title":"Mortality and epidemiological changes in proximal hip fractures in the course of a pandemic","volume":"11","author":"Popp","year":"2022","journal-title":"J\u00a0Clin Med"},{"key":"10.1016\/j.jamda.2023.03.011_bib63","doi-asserted-by":"crossref","first-page":"13","DOI":"10.22540\/JFSF-07-013","article-title":"Achieving the hip fracture best practise tariff during the COVID-19 pandemic","volume":"7","author":"Ali","year":"2022","journal-title":"J\u00a0Frailty Sarcopenia Falls"},{"key":"10.1016\/j.jamda.2023.03.011_bib64","first-page":"e21.00104","article-title":"Clinical characteristics and perioperative complication profiles of COVID-19-positive patients undergoing hip fracture surgery","volume":"5","author":"Galivanche","year":"2021","journal-title":"J\u00a0Am Acad Orthop Surg Glob Res Rev"},{"key":"10.1016\/j.jamda.2023.03.011_bib65","first-page":"e21.00282","article-title":"Association between COVID-19 and mortality in hip fracture surgery in the National COVID Cohort Collaborative (N3C): a retrospective cohort study","volume":"6","author":"Levitt","year":"2022","journal-title":"J\u00a0Am Acad Orthop Surg Glob Res Rev"},{"key":"10.1016\/j.jamda.2023.03.011_bib66","doi-asserted-by":"crossref","first-page":"403","DOI":"10.1097\/BOT.0000000000001849","article-title":"Hip fracture outcomes during the COVID-19 pandemic: early results from New York","volume":"34","author":"LeBrun","year":"2020","journal-title":"J\u00a0Orthop Trauma"},{"key":"10.1016\/j.jamda.2023.03.011_bib67","doi-asserted-by":"crossref","first-page":"e27740","DOI":"10.1097\/MD.0000000000027740","article-title":"Does the COVID-19 pandemic period itself increases early mortality rates of elderly patients with hip fractures in Turkey?","volume":"100","author":"Bilgetekin","year":"2021","journal-title":"Medicine (Baltim)"},{"key":"10.1016\/j.jamda.2023.03.011_bib68","doi-asserted-by":"crossref","first-page":"107","DOI":"10.5704\/MOJ.2107.016","article-title":"Mortality following hip fracture surgery during COVID-19 pandemic compared to pre-COVID-19 period: a case matched cohort series","volume":"15","author":"De","year":"2021","journal-title":"Malays Orthop J"},{"key":"10.1016\/j.jamda.2023.03.011_bib69","doi-asserted-by":"crossref","first-page":"e165","DOI":"10.1097\/OI9.0000000000000165","article-title":"Hip fracture care during the COVID-19 pandemic: retrospective cohort and literature review","volume":"5","author":"Topor","year":"2022","journal-title":"OTA Int"},{"key":"10.1016\/j.jamda.2023.03.011_bib70","doi-asserted-by":"crossref","first-page":"e2134972","DOI":"10.1001\/jamanetworkopen.2021.34972","article-title":"Analysis of hip fractures in France during the first COVID-19 lockdown in spring 2020","volume":"4","author":"Paccou","year":"2021","journal-title":"JAMA Netw Open"},{"key":"10.1016\/j.jamda.2023.03.011_bib71","doi-asserted-by":"crossref","first-page":"17","DOI":"10.1016\/j.afos.2022.03.003","article-title":"Epidemiology and postoperative complications of hip fracture during COVID-19 pandemic","volume":"8","author":"Kim","year":"2022","journal-title":"Osteoporos Sarcopenia"},{"key":"10.1016\/j.jamda.2023.03.011_bib72","doi-asserted-by":"crossref","first-page":"21","DOI":"10.1016\/j.gerinurse.2021.10.018","article-title":"The effect of physical and social isolation due to the COVID-19 pandemic on the incidence of hip fractures among senior citizens","volume":"43","author":"Ronel","year":"2022","journal-title":"Geriatr Nurs"},{"key":"10.1016\/j.jamda.2023.03.011_bib73","doi-asserted-by":"crossref","first-page":"161","DOI":"10.1016\/j.cjtee.2021.10.005","article-title":"Medium-term mortality after hip fractures and COVID-19: a prospective multi-centre UK study","volume":"25","author":"Chan","year":"2022","journal-title":"Chin J Traumatol"},{"key":"10.1016\/j.jamda.2023.03.011_bib74","first-page":"111","article-title":"Thirty-day mortality and reliability of Nottingham Hip Fracture Score in patients with COVID19 infection","volume":"26","author":"Fell","year":"2021","journal-title":"J\u00a0Orthop"},{"key":"10.1016\/j.jamda.2023.03.011_bib75","doi-asserted-by":"crossref","first-page":"e429","DOI":"10.1016\/j.surge.2022.02.009","volume":"26","author":"Hall","year":"2022","journal-title":"Surgeon"},{"key":"10.1016\/j.jamda.2023.03.011_bib76","doi-asserted-by":"crossref","first-page":"e0263680","DOI":"10.1371\/journal.pone.0263680","article-title":"Excess mortality after hip fracture during COVID-19 pandemic: more about disruption, less about virulence-lesson from a trauma center","volume":"17","author":"Boukebous","year":"2022","journal-title":"PLoS One"},{"key":"10.1016\/j.jamda.2023.03.011_bib77","doi-asserted-by":"crossref","first-page":"e440","DOI":"10.1016\/j.surge.2021.01.008","article-title":"The effect of COVID-19 pandemic on the care of fragility hip fracture patients in the United Kingdom. A case control study in a major trauma centre","volume":"19","author":"Orfanos","year":"2021","journal-title":"Surgeon"},{"key":"10.1016\/j.jamda.2023.03.011_bib78","doi-asserted-by":"crossref","first-page":"e0263944","DOI":"10.1371\/journal.pone.0263944","article-title":"Variations of the quality of care during the COVID-19 pandemic affected the mortality rate of non-COVID-19 patients with hip fracture","volume":"17","author":"Golinelli","year":"2022","journal-title":"PLoS One"},{"key":"10.1016\/j.jamda.2023.03.011_bib79","doi-asserted-by":"crossref","first-page":"337","DOI":"10.1308\/rcsann.2020.7071","article-title":"The effect of the COVID-19 lockdown on the epidemiology of hip fractures in the elderly: a multicentre cohort study","volume":"103","author":"Malik-Tabassum","year":"2021","journal-title":"Ann R Coll Surg Engl"},{"key":"10.1016\/j.jamda.2023.03.011_bib80","doi-asserted-by":"crossref","first-page":"e371","DOI":"10.1097\/BOT.0000000000001899","article-title":"Are hospitals safe? A prospective study on SARS-CoV-2 prevalence and outcome on surgical fracture patients: a closer look at hip fracture patients","volume":"34","author":"Segarra","year":"2020","journal-title":"J\u00a0Orthop Trauma"},{"key":"10.1016\/j.jamda.2023.03.011_bib81","doi-asserted-by":"crossref","first-page":"e325","DOI":"10.1097\/BOT.0000000000001889","article-title":"Thirty-day mortality rate of patients with hip fractures during the COVID-19 pandemic: a single centre prospective study in the United Kingdom","volume":"34","author":"Thakrar","year":"2020","journal-title":"J\u00a0Orthop Trauma"},{"key":"10.1016\/j.jamda.2023.03.011_bib82","doi-asserted-by":"crossref","first-page":"669","DOI":"10.1016\/S1473-3099(20)30243-7","article-title":"Estimates of the severity of coronavirus disease 2019: a model-based analysis","volume":"20","author":"Verity","year":"2020","journal-title":"Lancet Infect Dis"},{"key":"10.1016\/j.jamda.2023.03.011_bib83","doi-asserted-by":"crossref","first-page":"187","DOI":"10.1016\/j.jcot.2020.09.015","article-title":"Coronavirus disease 2019 (COVID-19) markedly increased mortality in patients with hip fracture\u2013a systematic review and meta-analysis","volume":"12","author":"Lim","year":"2021","journal-title":"J\u00a0Clin Orthop Trauma"},{"key":"10.1016\/j.jamda.2023.03.011_bib85","first-page":"523","article-title":"Real-time estimation of the risk of death from novel coronavirus (COVID-19) infection: inference using exported cases","volume":"9","author":"Jung","year":"2020","journal-title":"J\u00a0Clin Med"},{"key":"10.1016\/j.jamda.2023.03.011_bib86","doi-asserted-by":"crossref","first-page":"217","DOI":"10.1186\/s12916-020-01691-x","article-title":"Early epidemiological assessment of the transmission potential and virulence of coronavirus disease 2019 (COVID-19) in Wuhan City, China, January-February, 2020","volume":"18","author":"Mizumoto","year":"2020","journal-title":"BMC Med"},{"key":"10.1016\/j.jamda.2023.03.011_bib87","first-page":"378","article-title":"Fracture surgery in known COVID-19 infected patients: what are the challenges?","volume":"8","author":"Sadighi","year":"2020","journal-title":"Arch Bone Jt Surg"},{"key":"10.1016\/j.jamda.2023.03.011_bib88","doi-asserted-by":"crossref","DOI":"10.1177\/2054358120938573","article-title":"Multiorgan failure with emphasis on acute kidney injury and severity of COVID-19: systematic review and meta-analysis","volume":"7","author":"Lim","year":"2020","journal-title":"Can J Kidney Health Dis"},{"key":"10.1016\/j.jamda.2023.03.011_bib89","doi-asserted-by":"crossref","first-page":"864","DOI":"10.34172\/aim.2020.115","article-title":"Clinical manifestation of patients who died due to COVID-19: a retrospective study from Qom-Iran","volume":"23","author":"Hormati","year":"2020","journal-title":"Arch Iran Med"},{"key":"10.1016\/j.jamda.2023.03.011_bib90","doi-asserted-by":"crossref","first-page":"285","DOI":"10.1186\/s13018-020-01800-9","article-title":"COVID-19: not a contraindication for surgery in patients with proximal femur fragility fractures","volume":"15","author":"Morelli","year":"2020","journal-title":"J\u00a0Orthop Surg Res"},{"key":"10.1016\/j.jamda.2023.03.011_bib91","first-page":"12","article-title":"No rest for elderly femur fracture patients: early surgery and early ambulation decrease mortality","volume":"21","author":"Aprato","year":"2020","journal-title":"J\u00a0Orthop Traumatol"},{"key":"10.1016\/j.jamda.2023.03.011_bib92","doi-asserted-by":"crossref","first-page":"1609","DOI":"10.1503\/cmaj.092220","article-title":"Effect of early surgery after hip fracture on mortality and complications: systematic review and meta-analysis","volume":"182","author":"Simunovic","year":"2010","journal-title":"CMAJ (Can Med Assoc J)"},{"key":"10.1016\/j.jamda.2023.03.011_bib93","doi-asserted-by":"crossref","first-page":"e50","DOI":"10.2106\/JBJS.20.00513","article-title":"Surgical considerations in patients with COVID-19: what orthopaedic surgeons should know","volume":"102","author":"Liang","year":"2020","journal-title":"J\u00a0Bone Joint Surg Am"},{"key":"10.1016\/j.jamda.2023.03.011_bib94","doi-asserted-by":"crossref","first-page":"27","DOI":"10.4103\/0019-5413.73660","article-title":"Surgery for hip fractures: does surgical delay affect outcomes?","volume":"45","author":"Simunovic","year":"2011","journal-title":"Indian J Orthop"}],"container-title":["Journal of the American Medical Directors Association"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S1525861023002906?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S1525861023002906?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2025,10,26]],"date-time":"2025-10-26T19:31:47Z","timestamp":1761507107000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S1525861023002906"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2023,6]]},"references-count":92,"journal-issue":{"issue":"6","published-print":{"date-parts":[[2023,6]]}},"alternative-id":["S1525861023002906"],"URL":"https:\/\/doi.org\/10.1016\/j.jamda.2023.03.011","relation":{},"ISSN":["1525-8610"],"issn-type":[{"value":"1525-8610","type":"print"}],"subject":[],"published":{"date-parts":[[2023,6]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"The Impact of COVID-19 on the Prevalence, Mortality, and Associated Risk Factors for Mortality in Patients with Hip Fractures: A Meta-Analysis","name":"articletitle","label":"Article Title"},{"value":"Journal of the American Medical Directors Association","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.jamda.2023.03.011","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"\u00a9 2023 AMDA - The Society for Post-Acute and Long-Term Care Medicine.","name":"copyright","label":"Copyright"}]}}