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| 1 | Validation of the Rockall scoring system for outcomes from non-variceal upper gastrointestinal bleeding in a Canadian setting显示文摘AIM: To validate the Rockall scoring system for predicting outcomes of rebleeding, and the need for a surgical procedure and death. METHODS: We used data extracted from the Registry of Upper Gastrointestinal Bleeding and Endoscopy including information of 1869 patients with non-variceal upper gastrointestinal bleeding treated in Canadian hospitals. Risk scores were calculated and used to classify patients based on outcomes. For each outcome, we used χ2 goodness-of-fit tests to assess the degree of calibration, and built receiver operating characteristic curves and calculated the area under the curve (AUC) to evaluate the discriminative ability of the scoring system. RESULTS: For rebleeding, the χ2 goodness-of-fit test indicated an acceptable fit for the model [χ2 (8) = 12.83, P = 0.12]. For surgical procedures [χ2 (8) = 5.3, P = 0.73] and death [χ2 (8) = 3.78, P = 0.88], the tests showed solid correspondence between observed proportions and predicted probabilities. The AUC was 0.59 (95% CI: 0.55-0.62) for the outcome of rebleeding and 0.60 (95% CI: 0.54-0.67) for surgical procedures, representing apoor discriminative ability of the scoring system. For the outcome of death, the AUC was 0.73 (95% CI: 0.69-0.78), indicating an acceptable discriminative ability. CONCLUSION: The Rockall scoring system provides an acceptable tool to predict death, but performs poorly for endpoints of rebleeding and surgical procedures. | Robert A Enns Yves M Gagnon Alan N Barkun David Armstrong Jamie C Gregor Richard N Fedorak RUGBE Investigators Group | 2006 | World Journal of Gastroenterology2006，12，48： | 14 |
| 2 | The historical residue trend of PCBs in the Agassiz Ice Cap, Ellesmere Island, Canada显示文摘 | Gregor D J Peters A J Teixeira C | 1995 | The Science of The Environment1995，，： | 1 |
| 3 | The recent depositional trend of polycyclic aromatic hydrocarbons and elemental carbon to the Agassiz Ice Cap, Ellesmere Island, Canada显示文摘 | Peters A J Gregor D J Teixeira C F | 1995 | The Science of the Total Environment1995，，： | 1 |
| 4 | Should Patients with 'borderline' 'lesions of Banff criteria be treated by renal trans plantation显示文摘 | Mac Gregor B Dijoud F | 1998 | Transplant Proc1998，30，6： | 1 |
| 5 | Computing the dynam- ic response of an axially moving continuum显示文摘 | Gregor C epon Miha Bolt~ar | 2007 | Journal of Sound and Vibration2007，300，2： | 1 |
| 6 | Optimizing nat- ural organic matter removal from low turbidity waters by controlled pH adjustment of aluminium coagulation 显示文摘 | GREGOR J E NOKES C J FENTON E | 1997 | Water Research1997，31，12： | 1 |
| 7 | Multi-resolution,object-oriented fuzzy analysis of remote sensing data for GIS-ready information显示文摘 | Benz U C Peter H Gregor W | 2004 | ISPRS Journal of Photogrammetry & Remote Sensing2004，，58： | 1 |
| 8 | Single-agent pemetrexed or sequential pemetrexed/gemcltabine as frontoline treatment of advanced non-small ceU lung cancer in elderly patients or patients ineligible for phase II platinum-based chemotherapy: a trial显示文摘 | Gridelli C Kaukel E Gregore V | 2007 | J Thorac Oneol2007，2，3： | 1 |
| 9 | Mismatches at the HLA-DR and HLA-B loci are risk faetors for acute rejection after lung transplantation 显示文摘 | Schulman L L Weinberg A D Me Gregor C | 1998 | Am J Respir Crit Care Med1998，157，10： | 1 |
| 10 | Computer-based virtual re- ality colonoscopy simulation improves patient-based colonoscopy performance显示文摘 | Mclntosh K S Gregor J C Khanna N V | 2014 | Canadian Journal of Gastroenterology & Hepatology2014，28，4： | 1 |
| 11 | Learning the lessons of Barn: the role of social capital 显示文摘 | Aghabakhshi H Gregor C | 2007 | International Social Work2007，50，3： | 1 |
| 12 | Plant nutrient losses in runoff from conservation tillage corn显示文摘 | Mc Dowel L L Mc Gregor K C | 1984 | Soil and Tillage Res1984，4，： | 1 |
| 13 | Multi-resolution, object-oriented fuzzy analysis of remote sensing data for G/S-ready information显示文摘 | Benz U C Peter H Gregor W | 2004 | ISPRS Journal of Photogrammetry & Remote Sensing2004，，58： | 1 |
| 14 | Optimising natural organic matter removal from low turbidity waters by controlled pH adjustment of aluminum coagulation显示文摘 | Gregor J E Nokes C J Fenton E | 1997 | Water Research1997，31，12： | 1 |
| 15 | The use of corticosteroids for choroidal neovascularization in young patients 显示文摘 | Flaxel C J Owens SL Mulholland B Schwartz SD Gregor ZJ | 1998 | Eye (Lond)1998，12，2： | 1 |
| 16 | The complete genome sequence of Escherichia coli K-12 显示文摘 | BLATTNER F R PLUNKETT G BLOCH C A PERNA N T BURLAND V RILEY M COLLADOVIDES J GLASNER J D RODE C K MAYHEW G F GREGOR J DAVIS N W KIRKPATRICK H A GOEDEN M A ROSE D J MAU B SHAO Y | 1997 | Science1997，277，5331： | 1 |
| 17 | Optimizing natural organic matter removal from low turbidity waters by controlled pH adjustment of aluminum coagulation 显示文摘 | Gregor J E Nokes C J Fenton E | 1997 | Water Research1997，31，12： | 1 |
| 18 | Diagnosing primary and metastatic renal cell carcinoma: the use of the monoelonal antibody 'Renal Cell Carcinoma Marker' 显示文摘 | Mc Gregor DK Khurana KK Can C | 2001 | Am J Surg Pathol2001，25，12： | 1 |
| 19 | Optimising natural organic matter removal from low turbidity waters by controlled pH adjustment of aluminum coagulation 显示文摘 | Gregor J E Nokes C J Fenton E | 1997 | Water Research1997，31，12： | 1 |
| 20 | Population structure and phylogenetic characterization of marine benthic archaea in deep-sea sediments显示文摘 | VETRIANI C JANNASCH H W Mac GREGOR B J | 1999 | Applied and Environmental Microbiology1999，65，10： | 1 |
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