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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 | Synthesis of layered LiMnO2 as an electrode for rechargeable lithium batteries显示文摘 | Armstrong A R Bruce P G | 1996 | Nature1996，381，： | 1 |
| 3 | TiO2 - B nanowires as negative electrodea for rechargeable lithium batteries显示文摘 | Armstrong A R Armstrong G Canales J | 2005 | J Power Sources2005，146，12： | 1 |
| 4 | Pregnancy outcomes by pregnancy intention in a managed carc setting显示文摘 | Postlethwaite D Armstrong M A HUANG Yan-yan | 2009 | Matem Child Heath J2009，，： | 1 |
| 5 | Phylogenetic relationships among Bactrocera species ( Diptera : Tephritidae) inferred from mitochondrial DNA sequences 显示文摘 | Smith P T Kambhanti S Armstrong K A | 2003 | Mor Phylogenet and Evol2003，26，： | 1 |
| 6 | Some effects of the addition of cobalt to the nickel electrode 显示文摘 | BRIGGS G W D CHARLES E A | 1988 | J Appl Electrochem1988，18，： | 1 |
| 7 | Thermochronometers in Sedimentary basins 显示文摘 | Armstrong P A | 2005 | Reviews in Mineralogy and Geochemistry2005，58，1： | 1 |
| 8 | A hybrid spectral representation of phytoplankton growth and zooplankon response:the 'control rod'model of plankton interaction显示文摘 | ARMSTRONG R A | 2003 | Deep-sea Research2003，50，： | 1 |
| 9 | Combined laparoscopic and endoscopic treatment of gallstones and bile duct stones:a prospective study显示文摘 | Widdison A L Longstaff A J Armstrong C P | 1994 | Br J Surg1994，81，： | 1 |
| 10 | Stoichiometric LiMnO2 with a layered structure charge/discharge capacity and the influence of grinding显示文摘 | Paterson A J Armstrong A R Bruce P G | 2004 | Journal of Electrochem Soc2004，151，10： | 1 |
| 11 | Interactions between light waves in a nonlinear dielectric显示文摘 | ARMSTRONG J A BLOEMBERGEN N DUCUING J | 1962 | Phys Rev1962，127，： | 1 |
| 12 | From where did the 2009 ~swine-origin~ influenza A vi- rus(H1N1)emerge?显示文摘 | Gibbs A J Armstrong JS Downie JC | 2009 | Virol J2009，6，： | 1 |
| 13 | The lithium intercalation compound Li2CoSiO4 and its behaviour as a positive electrode for lithium batteries 显示文摘 | NESS C DELOBEL B ARMSTRONG A R BRUCE P G | 2007 | Chem Commun (Camb)2007，46，： | 1 |
| 14 | Inflammatory biomarkers in acute coronary syndromes : part II :acutephase reactants and biomarkers of endothelial cellactivation显示文摘 | ARMSTRONG E J MORROW D A SABATINE M S | 2006 | Circulation2006，113，7： | 1 |
| 15 | Insect resistant cotton plants 显示文摘 | Perlak F J Deaton B W Armstrong T A | 1990 | Bio/Teehnology1990，8，： | 1 |
| 16 | Fibri- nolysis or primary PCI in ST segment elevation myocardial infarction显示文摘 | Armstrong P W Gershlick A H Goldstein P | 2013 | New England Journal of Medicine2013，368，15： | 1 |
| 17 | Synthesis of layered LiMn〇2 as all electrode for rechargeable lithium batteries 显示文摘 | Armstrong A R Bruce P G | 1996 | Nature1996，381，： | 1 |
| 18 | Metabolo- mics in psoriatic disease: pilot study reveals metabolite differ- ences in psoriasis and psoriatic arthritis显示文摘 | ARMSTRONG A W WU J JOHNSON M A | 2014 | F1000 Res2014，，3： | 1 |
| 19 | The contributitis of hepatitis B virus and hepatitis C virus infections to cirrhosis and primary liver cancer worldwide显示文摘 | PERZ J F ARMSTRONG G L FARRINGTON L A | 2006 | Hepatol2006，45，9： | 1 |
| 20 | Distributed lag non-linear models显示文摘 | Gasparrini A Armstrong B Kenward M G | 2010 | Statistics in Medicine2010，29，： | 1 |
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