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Molecular markers for artemisinin and partner drug resistance in natural Plasmodium falciparum populations following increased insecticide treated net coverage along the slope of mount Cameroon:cross-sectional study

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Infectious Diseases of Poverty 2017年第1期6卷 1205-1214页

作者： Tobias O.Apinjoh Regina N.Mugri Olivo Miotto Hanesh F.Chi Rolland B.Tata Judith K.Anchang-Kimbi Eleanor M.Fon Delphine A.Tangoh Robert V.Nyingchu christopher jacob Roberto Amato Abdoulaye Djimde Dominic Kwiatkowski Eric A.Achidi Alfred Amambua-Ngwa Department of Biochemistry and Molecular Biology University of BueaBueaCameroon Department of Microbiology and Parasitology University of BueaBueaCameroon Mahidol-Oxford Research Unit Faculty of Tropical MedicineMahidol UniversityBangkokThailand Department of Zoology and Animal Physiology University of BueaBueaCameroon Department of Medical Laboratory Science University of BueaBueaCameroon Wellcome Trust Sanger Institute HinxtonCambridge CB101SAUK Malaria Research and Training Centre BamakoMali MRC Unit FajaraThe Gambia

Background:Drug resistance is one of the greatest challenges of malaria control programmes,with the monitoring of parasite resistance to artemisinins or to Artemisinin Combination Therapy(ACT)partner drugs critical to elimination *** of resistance to a wide panel of antimalarials were assessed in natural parasite populations from southwestern ***:Individuals with asymptomatic parasitaemia or uncomplicated malaria were enrolled through crosssectional surveys from May 2013 to March 2014 along the slope of mount *** falciparum malaria parasitaemic blood,screened by light microscopy,was depleted of leucocytes using CF11 cellulose columns and the parasite genotype ascertained by sequencing on the Illumina HiSeq ***:A total of 259 participants were enrolled in this study from three different *** some alleles associated with drug resistance in pfdhfr,pfmdr1 and pfcrt were highly prevalent,less than 3%of all samples carried mutations in the pfkelch13 gene,none of which were amongst those associated with slow artemisinin parasite clearance rates in Southeast *** most prevalent haplotypes were triple mutants PfdhfrI51R59N108I164(99%),pfcrt-C72V73I74E75T76(47.3%),and single mutants PfdhpsS_(436)G_(437)K_(540)A_(581)A_(613)(69%)and Pfmdr1 N_(86)F)(184)D_(1246)(53.2%).Conclusions:The predominance of the Pf pfcrt CVIET and Pf dhfr IRN triple mutant parasites and absence of pfkelch13 resistance alleles suggest that the amodiaquine and pyrimethamine components of AS-AQ and SP may no longer be effective in their role while chloroquine resistance still persists in southwestern Cameroon.

关键词： Molecular markers Drug resistance Plasmodium falciparum

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Evidence for fine-scale habitat specialisation in an invasive weed

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Journal of Plant Ecology 2018年第2期11卷 189-199页

作者： Daniel Z.Atwater Rebecca A.Fletcher christopher C.Dickinson Andrew H.Paterson jacob N.Barney Virginia Tech Department of Plant PathologyPhysiology and Weed Science435 Old Glade RoadBlacksburgVA 24061USA University of Georgia Plant Genome Mapping Laboratory111 Riverbend RoadAthensGA 30606USA

Aims As an exotic species colonises a new continent,it must overcome enormous environmental variation in its introduced *** adaptation of introduced species has frequently been observed at the continent scale,particularly in response to latitudinal climatic ***,significant environmental heterogeneity can also exist at the landscape scale.A small number of studies have provided evidence that introduced species may also be capable of phenotypic and genetic differentiation at much smaller spatial *** example,previously we found US agricultural and non-agricultural populations of Sorghum halepense(Johnsongrass)to be phenotypically and genetically *** this study,we inves-tigated whether this phenotypic differentiation of agricultural and non-agricultural populations of *** is the result of fine-scale local *** We surveyed a nationally collected *** germplasm panel and also collected neighbouring agricultural and non-agricultural sub-populations of *** at four sites throughout Western Virginia,USA,raising seedlings in common conditions mimicking both agricultural and non-agricultural *** Findings At the national scale,we found evidence of habitat differentiation but not ***,at the local scale,we found evi-dence of specialisation in two of the four local populations to non-agricultural habitat,but no evidence of specialisation to agricultural *** results show that local specialisation is a possible,but not guaranteed consequence of kilometre-scale habitat heterogen-eity in invasive *** finding contributes to a growing aware-ness of the importance of fine-scale local adaptation in the ecology and management of introduced and weedy species.

关键词： Johnsongrass local adaptation rapid evolution Sorghum halepense(L.)

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Flood Frequency Analysis at Oshun River in Asejire Dam Site, Nigeria

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Journal of Earth Science and Engineering 2013年第5期3卷 292-300页

作者： jacob Odeh Ehiorobo Osadolor christopher Izinyon Department of Civil Engineering University of Benin Benin City 300213 Nigeria

Flood frequency analysis procedure was performed on annual maximum discharge data of River Oshun at Iwo in Osun State, Nigeria for the period 1985 to 2002 utilizing three probability distribution models namely： Extreme EVI （value Type-l）, LN （Log normal） and LPIII （Log Pearson Type III）. The models were used to predict and compare corresponding flood discharge estimates at 2, 5, 10, 25, 50, 100 and 200 years return periods. The results indicated that Extreme Value Type 1 distribution predicted discharge values ranging from 26.6 m3/s for two years to 431.8 m3/s for 200 years return periods; the Log Pearson Type III distribution predicted discharge values ranging from 127.2 m3/s for two years to 399.54 m3/s for 200 years return periods and the Log normal distribution predicted discharge values ranging from 116.2 m3/s for two years to 643.9 m3/s for 200 years return periods. From the results~ it was concluded that for lower return periods （T_〈 50 yrs） Extreme Value Type 1 and Log Pearson Type III could be used to estimate flood quantile values at the station while for higher return periods （T 〉 50 yrs） Log Normal probability distribution model which gives higher estimates could be utilized for safe design in view of the short length of discharge records used for the analysis.

关键词： Flood frequency probability distribution recurrence interval discharge.

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Monitoring of Soil Loss from Erosion Using Geoinformatics and Geotechnical Engineering Methods

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Journal of Civil Engineering and Architecture 2013年第1期7卷 78-84页

作者： jacob Odeh Ehiorobo Osadolor christopher Izinyon Department of Civil Engineering Faculty of Engineering University of Benin Benin PMB 1154 Nigeria

In this study, the position of all major rill and gully erosion sites were located using hand held GPS （Global Positioning System） receiver during reconnaissance surveys. Based on severity rating and geopolitical considerations, six of the erosion gully sites were selected for monitoring. Control points were established around each of the gully sites using three Leica 500 dual frequency GPS receivers by method of DGPS （differential GPS） surveys. Detailed topographical survey of the gully sites was carried out using total stations. With the aid of SPOT satellite imageries in combination with total station data and GIS （geographic information system） location maps, contoured maps along with DEM （digital elevation model） were generated using ARCGIS 9.2 software. The morphological parameters of the gullies including depth, width, length and area of the gullies were determined. Volumetric estimate of the amount of soil loss from gully erosion was also carried out. Soil samples were recovered from the gully sites to determine their erodibility and other parameters to be used for soil loss modeling. The result of the studies was used as an indicator for determining the gully initiation point. Slope-area relationship and threshold of gully initiation was established. The minimum volume of soil loss occurred in gully No. 2 （Queen Ede）. The minimum AS^2 value was 345 while the maximum was 3,267.

关键词： Differential GPS gully erosion rill erosion morphological parameters digital elevation model.

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爱尔兰泰坦尼克纪念馆

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设计 2016年第4期29卷 30-31页

作者： jacob christopher Heaney

这是世界上最大的以泰坦尼克为主题的游客旅游中心,同时也是北爱尔兰最大的旅游项目。由于爱尔兰的贝尔法斯特是当年泰坦尼克号建造和下水的港口,故博物馆因此得名。这座建筑耗资近1亿英镑,体型犹如四艘轮船的船首分别驶向不同方向,又... 详细信息

这是世界上最大的以泰坦尼克为主题的游客旅游中心,同时也是北爱尔兰最大的旅游项目。由于爱尔兰的贝尔法斯特是当年泰坦尼克号建造和下水的港口,故博物馆因此得名。这座建筑耗资近1亿英镑,体型犹如四艘轮船的船首分别驶向不同方向,又像冰山的四座棱角让人不时的想起电影中的场景,内部甚至还有专门模拟泰坦尼克号大厅的空间场景,

关键词：坦尼克泰坦尼克号旅游中心旅游项目能将社区设施设计细节外立面建造时间城市公民

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Associations of Hydroxysteroid 17-beta Dehydrogenase 13 Variants with Liver Histology in Chinese Patients with Metabolicassociated Fatty Liver Disease

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Journal of Clinical and Translational Hepatology 2021年第2期9卷 194-202页

作者： Wen-Yue Liu Mohammed Eslam Kenneth I.Zheng Hong-Lei Ma Rafael S.Rios Min-Zhi Lv Gang Li Liang-Jie Tang Pei-Wu Zhu Xiao-Dong Wang christopher D.Byrne Giovanni Targher jacob George Ming-Hua Zheng Department of Endocrinology The First Affiliated Hospital of Wenzhou Medical UniversityWenzhouZhejiangChina Storr Liver Centre Westmead Institute for Medical ResearchWestmead Hospital and University of SydneyWestmeadSydneyAustralia NAFLD Research Center Department of HepatologyThe First Affiliated Hospital of Wenzhou Medical UniversityWenzhouZhejiangChina Department of Biostatistics Zhongshan HospitalFudan UniversityShanghaiChina Department of Laboratory Medicine The First Affiliated Hospital of Wenzhou Medical UniversityWenzhouZhejiangChina Institute of Hepatology Wenzhou Medical UniversityWenzhouZhejiangChina Southampton National Institute for Health Research Biomedical Research Centre University Hospital SouthamptonSouthampton General HospitalSouthamptonUK Section of Endocrinology Diabetes and MetabolismDepartment of MedicineUniversity and Azienda Ospedaliera Universitaria Integrata of VeronaVeronaItaly Key Laboratory of Diagnosis and Treatment for The Development of Chronic Liver Disease in Zhejiang Province WenzhouZhejiangChina

Background and Aims:In Europeans,variants in the hydroxysteroid 17-beta dehydrogenase 13(HSD17B13)gene impact liver histology in metabolic-associated fatty liver disease(MAFLD).The impact of these variants in ethnic Chinese is *** aim of this study was to investigate the potential associations in Chinese ***:In total,427 Han Chinese with biopsy-confirmed MAFLD were *** single nucleotide polymorphisms in HSD17B13 were genotyped:rs72613567 and *** regression was used to test the association between the single nucleotide polymorphisms and liver ***:In our cohort,the minor allele TA of the rs72613567 variant was related to an increased risk of fibrosis[odds ratio(OR):2.93(1.20–7.17),p=0.019 for the additive model;OR:3.32(1.39–7.91),p=0.007 for the recessive model],representing an inverse association as compared to the results from European *** contrast,we observed a protective effect on fibrosis for the minor A allele carriers of the HSD17B13 rs6531975 variant[OR:0.48(0.24–0.98),p=0.043 for the additive model;OR:0.62(0.40–0.94),p=0.025 for the dominant model].HSD17B13 variants were only associated with fibrosis but no other histological ***,HSD17B13 rs6531975 modulated the effect of PNPLA3 rs738409 on hepatic ***:HSD17B13 rs72613567 is a risk variant for fibrosis in a Han Chinese MAFLD population but with a different direction for allelic association to that seen in *** data exemplify the need for studying diverse populations in genetic studies in order to fine map genome-wide association studies signals.

关键词： Metabolic-associated fatty liver disease(MAFLD) Nonalcoholic fatty liver disease(NAFLD) Hydroxysteroid 17-beta dehydrogenase 13(HSD17B13) Single nucleotide polymorphism(SNP)

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Combining computer vision and deep learning to enable ultra-scale aerial phenotyping and precision agriculture:A case study of lettuce production

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Horticulture Research 2019年第1期6卷 906-917页

作者： Alan Bauer Aaron George Bostrom Joshua Ball christopher Applegate Tao Cheng Stephen Laycock Sergio Moreno Rojas jacob Kirwan Ji Zhou Earlham Institute Norwich Research ParkNorwich NR47UZUK Plant Phenomics Research Center China-UK Plant Phenomics Research CentreNanjing Agricultural UniversityNanjing 210095 JiangsuChina School of Computing Sciences University of East AngliaNorwich Research ParkNorwich NR47TJUK National Engineering and Technology Center for Information Agriculture MARA Key Laboratory for Crop System Analysis and Decision MakingJiangsu Key Laboratory for Information AgricultureNanjing Agricultural UniversityNanjing 210095 JiangsuChina G’s Growers Limited ElyCambridgeshire CB75TZUK

Aerial imagery is regularly used by crop researchers,growers and farmers to monitor crops during the growing *** extract meaningful information from large-scale aerial images collected from the field,high-throughput phenotypic analysis solutions are required,which not only produce high-quality measures of key crop traits,but also support professionals to make prompt and reliable crop management ***,we report AirSurf,an automated and open-source analytic platform that combines modern computer vision,up-to-date machine learning,and modular software engineering in order to measure yield-related phenotypes from ultra-large aerial *** quantify millions of in-field lettuces acquired by fixed-wing light aircrafts equipped with normalised difference vegetation index(NDVI)sensors,we customised AirSurf by combining computer vision algorithms and a deep-learning classifier trained with over 100,000 labelled lettuce *** tailored platform,AirSurf-Lettuce,is capable of scoring and categorising iceberg lettuces with high accuracy(>98%).Furthermore,novel analysis functions have been developed to map lettuce size distribution across the field,based on which associated global positioning system(GPS)tagged harvest regions have been identified to enable growers and farmers to conduct precision agricultural practises in order to improve the actual yield as well as crop marketability before the harvest.

关键词： computer analysis equipped

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Using statistics and mathematical modelling to understand infectious disease outbreaks:COVID-19 as an example

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Infectious Disease Modelling 2020年第1期5卷 409-441页

作者： christopher E.Overton Helena B.Stage Shazaad Ahmad jacob Curran-Sebastian Paul Dark Rajenki Das Elizabeth Fearon Timothy Felton Martyn Fyles Nick Gent Ian Hall Thomas House Hugo Lewkowicz Xiaoxi Pang Lorenzo Pellis Robert Sawko Andrew Ustianowski Bindu Vekaria Luke Webb Department of Mathematics University of ManchesterUK IBM Research Hartree CentreSciTech DaresburyUK Department of Global Health and Development London School of Hygiene and Tropical MedicineUK Emergency Response Department Public Health EnglandUK Division of Infection Immunity and Respiratory MedicineNIHR Biomedical Research CentreUniversity of ManchesterUK Department of Virology Manchester Medical Microbiology PartnershipManchester Foundation TrustUK Regional Infectious Diseases Unit North Manchester General HospitalUK School of Medical Sciences University of ManchesterUK Intensive Care Unit Wythenshawe HospitalManchester University NHS Foundation TrustUK Department of Health Sciences University of ManchesterUK Department of Mathematical Sciences University of LiverpoolUK The Alan Turing Institute UK Manchester Academic Health Sciences Centre UK Critical Care Unit Salford Royal HospitalNorthern Care Alliance NHS GroupUK

During an infectious disease outbreak,biases in the data and complexities of the underlying dynamics pose significant challenges in mathematically modelling the outbreak and designing *** by the ongoing response to COVID-19,we provide a toolkit of statistical and mathematical models beyond the simple SIR-type differential equation models for analysing the early stages of an outbreak and assessing *** particular,we focus on parameter estimation in the presence of known biases in the data,and the effect of non-pharmaceutical interventions in enclosed subpopulations,such as households and care *** illustrate these methods by applying them to the COVID-19 pandemic.

关键词： COVID-19 Epidemic modelling Parameter estimation Outbreak Bias Intervention

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Hepatocyte apoptosis fragment product cytokeratin-18 M30 level and non-alcoholic steatohepatitis risk diagnosis:an international registry study

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Chinese Medical Journal 2023年第3期136卷 341-350页

作者： Huai Zhang Rafael S.Rios Jerome Boursier Rodolphe Anty Wah-Kheong Chan jacob George Yusuf Yilmaz Vincent Wai-Sun Wong Jiangao Fan Jean-Francois Dufour George Papatheodoridis Li Chen Jorn M.Schattenberg Junping Shi Liang Xu Grace Lai-Hung Wong Naomi F.Lange Margarita Papatheodoridi Yuqiang Mi Yujie Zhou christopher D.Byrne Giovanni Targher Gong Feng Minghua Zheng Department of Biostatistics and Medical Record The First Affiliated Hospital of Wenzhou Medical UniversityWenzhouZhejiang 325000China Department of Hepatology MAFLD Research CenterThe First Affiliated Hospital of Wenzhou Medical UniversityWenzhouZhejiang 325000China Service d’Hépato-Gastroentérologie et Oncologie Digestive Centre Hospitalier Universitaire d’AngersAngersFrance Laboratoire HIFIH UPRES EA3859SFR ICAT 4208Universitéd’AngersAngersFrance Université Cote d’Azur CHUINSERMU1065C3M06204 NiceFrance Gastroenterology and Hepatology Unit Department of MedicineFaculty of MedicineUniversity of MalayaKuala LumpurMalaysia Storr Liver Centre Westmead Institute for Medical ResearchWestmead Hospital and University of SydneySydneyNSWAustralia Department of Gastroenterology School of MedicineMarmara UniversityIstanbulTurkey Department of Gastroenterology School of MedicineRecep Tayyip Erdogan UniversityRizeTurkey Department of Medicine and Therapeutics The Chinese University of Hong KongHong Kong 999077China Department of Gastroenterology Xinhua HospitalShanghai Jiao Tong University School of MedicineShanghai 200000China University Clinic for Visceral Surgery and Medicine InselspitalUniversity Hospital BernBernSwitzerland Graduate School for Health Sciences University of BernBernSwitzerland Academic Department of Gastroenterology Medical School of National and Kapodistrian University of AthensGeneral Hospitalof Athens“Laiko”AthensGreece Department of Gastroenterology Ruijin HospitalShanghai 200000China Metabolic Liver Research Program I Department of MedicineUniversity Medical Center MainzMainzGermany The Affiliated Hospital of Hangzhou Normal University HangzhouZhejiang 310000China Tianjin Second People’s Hospital Tianjin 300000China Division of Gastroenterology and Hepatology Key Laboratory of Gastroenterology and HepatologyMinistry of HealthRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai Institute of Digestive DiseaseShanghai 200000Ch

Background:Liver biopsy for the diagnosis of non-alcoholic steatohepatitis(NASH)is limited by its inherent invasiveness and possible sampling *** studies have shown that cytokeratin-18(CK-18)concentrations may be useful in diagnosing NASH,but results across studies have been *** aimed to identify the utility of CK-18 M30 concentrations as an alternative to liver biopsy for non-invasive identification of ***:Individual data were collected from 14 registry centers on patients with biopsy-proven non-alcoholic fatty liver disease(NAFLD),and in all patients,circulating CK-18 M30 levels were *** with a NAFLD activity score(NAS)≥5 with a score of≥1 for each of steatosis,ballooning,and lobular inflammation were diagnosed as having definite NASH;individuals with a NAS≤2 and no fibrosis were diagnosed as having non-alcoholic fatty liver(NAFL).Results:A total of 2571 participants were screened,and 1008(153 with NAFL and 855 with NASH)were finally *** CK-18 M30 levels were higher in patients with NASH than in those with NAFL(mean difference 177 U/L;standardized mean difference[SMD]:0.87[0.69–1.04]).There was an interaction between CK-18 M30 levels and serum alanine aminotransferase,body mass index(BMI),and hypertension(P<0.001,P=0.026 and P=0.049,respectively).CK-18 M30 levels were positively associated with histological NAS in most *** area under the receiver operating characteristics(AUROC)for NASH was 0.750(95%confidence intervals:0.714–0.787),and CK-18 M30 at Youden’s index maximum was 275.7 U/*** sensitivity(55%[52%–59%])and positive predictive value(59%)were not ***:This large multicenter registry study shows that CK-18 M30 measurement in isolation is of limited value for non-invasively diagnosing NASH.

关键词： Apoptosis Diagnosis Cytokeratin-18 Liver histology Non-alcoholic steatohepatitis Non-alcoholic fatty liver disease

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Medium-term mortality after hip fractures and COVID-19:A prospective multicentre UK study

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Chinese Journal of Traumatology 2022年第3期25卷 161-165页

作者： Gareth Chan Ashish Narang Arash Aframian Zaid Ali Joseph Bridgeman Alastair Carr Laura Chapman Henry Goodier Catrin Morgan Chang Park Sarah Sexton Kapil Sugand Thomas Walton Michael Wilson Ajay Belgaumkar Kieran Gallagher Koushik Ghosh Charles Gibbons Joshua jacob Andrew Keightley Zuhair Nawaz Khaled Sarraf christopher Wakeling William Kieffer Benedict Rogers Brighton&Sussex University Hospitals NHS Trust Brighton&Sussex Medical SchoolFainter CampusBrighton UK Surrey&Sussex Healthcare NHS Trust Canada&venueRedhillUK Chelsea&Westminster Hospital NHS Foundation Trust LondonUK Ashford&St frier's Hospital NHS Foundation TrustChertseyUK Western Sussex Hospitals NHS Foundation Trust(Sr Richard's Hospital)ChichesterUK Poole General Hospital&the Royal Bournemouth Hospital froleUK Imperial College Healthcare NHS Trust LondonUK Western Sussex Hospitals NHS Foundation Trust(Worthing Hospital) WorthingUK Royal Surrey Hospital NHS Foundation Trust GuildfordUK Frimley Health NHS Foundation Trust FrimleyUK

Purpose:The COVID-19 pandemic has caused 1.4 million deaths globally and is associated with a 3-4 times increase in 30-day mortality after a fragility hip fracture with concurrent COVID-19 ***,death from COVID-19 infection occurs between 15 and 22 days after the onset of symptoms,but this period can extend up to 8 *** study aimed to assess the impact of concurrent COVID-19 infection on 120-day mortality after a fragility hip ***:A multi-centre prospective study across 10 hospitals treating 8%of the annual burden of hip fractures in England between 1st March and 30th April,2020 was *** whose surgical treatment was payable through the National Health Service Best Practice Tariff mechanism for"fragility hip fractures"were included in the ***'120-day mortality was assessed relative to their perioperative COVID-19 *** analysis was performed using SPSS version ***:A total of 746 patients were included in this study,of which 87(11.7%)were COVID-19 *** rates at 30-and 120-day were significantly higher for COVID-19 positive patients relative to COVID-19 negative patients(p<0.001).However,mortality rates between 31 and 120-day were not significantly different(p=0.107),16.1%and 9.4%respectively for COVID-19 positive and negative patients,odds ratio 1.855(95%CI 0.865-3.978).Conclusion:Hip fracture patients with concurrent COVID-19 infection,provided that they are alive at day-31 after injury,have no significant difference in 120-day *** the growing awareness and concern of "long-COVID"and its widespread prevalence,this does not appear to increase mediumterm mortality rates after a hip fracture.

关键词： Hip fractures Femoral fractures COVID-19 Coronavirus Mortality

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