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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 | 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 |
| 3 | 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 |
| 4 | Experi- mental Demonstrations of Electronic Dispersion Com- pensation for Long-Haul Transmission Using Direct- Detection Optical OFDM 显示文摘 | Schmidt B J C Lowery A J Armstrong J | 2008 | Journal of Lightwave Technology2008，26，1： | 1 |
| 5 | Effect of forced,hot-air treatments of papaya fruit on fruit quality and incidence of postharvest disease显示文摘 | Nishijima K A Miura C K Armstrong J W | 1992 | Plant Dis1992，76，： | 1 |
| 6 | Distribution of cholinergic neurons in rat brain : demonstrated by the immuno-cytochemical localization of choline acetyltransferase显示文摘 | Armstrong D M Super C B Levey A I | 1983 | Comp Neurol1983，216，1： | 1 |
| 7 | The use Of long - term, low - dose erythromyeinintreatingpersistentgastriestasis 显示文摘 | Hunter A Regnard C Armstrong C | 2005 | JPainSymptomManage2005，29，5： | 1 |
| 8 | Linear theory of slow wave cyclotron interaction in double-ridged folded rectangular waveguide 显示文摘 | Ganguly A K Choi J J Armstrong C M | 1995 | IEEE Transactions on Elec- tron Devices1995，42，2： | 1 |
| 9 | Marine reserves:a bio-economic model with asymmetric density dependent migration显示文摘 | Armstrong C W Skonhoft A | 2006 | Ecological Economics2006，57，： | 1 |
| 10 | Reactions and equilibria in magnesium oxychloride cements显示文摘 | ARMSTRONG C R | 1976 | J Am Ceram Soc1976，59，12： | 1 |
| 11 | Reactions and equilibria in magnesium oxychloride cements 显示文摘 | SORELL C A ARMSTRONG C R | 1976 | J Am Ceram Sa1976，59，： | 1 |
| 12 | Venture-backed private equity valuation and financial statement information显示文摘 | Armstrong C Davila A Foster G | 2006 | Review of Accounting Studies2006，11，1： | 1 |
| 13 | Safety,tolerability and immunogenicity of GS-4774,a hepatitis Bvirus-specific therapeutic vaccine,in healthy subjects:a randomized study显示文摘 | Gaggar A Coeshott C Apelian D Rodell T Armstrong B R Shen G Subramanian G M McHutchison J G | 2014 | Vaccine2014，32，39： | 1 |
| 14 | Experimental demon-strations of electronic dispersion compensation for long-haul transmis-sion using direct-detection optical OFDM显示文摘 | SCHMIDT B J C LOWERY A J ARMSTRONG J | 2008 | Lightwave Technology2008，26，1： | 1 |
| 15 | A new, mecha- nistic model for organic carbon fluxes in the ocean based on the quantitative association of POC with ballast minerals显示文摘 | Armstrong R A Lee C Hedges J | 2001 | Deep Sea Research Part Topical Studies in Oceanography2001，49，13： | 1 |
| 16 | High dietary copper improves odor characteristics of swine wastel显示文摘 | Armstrong T A Williams C M Spears J w | 2000 | J Anim Sci2000，78，： | 1 |
| 17 | High dietary copper improves odor characteristics of swine waste显示文摘 | ARMSTRONG T A WILLIAMS C M SPEARS J W | 2000 | J Anim Sci2000，78，： | 1 |
| 18 | -substance P (6-11) activates JNK and induces apoptosis in small cell lung cancer cells via an oxidant-dependent mechanism显示文摘 | MACKINNON A C ARMSTRONG R A WATERS C M | 1999 | Br J Cancer1999，80，7： | 1 |
| 19 | On the fractal dimension of some transcient soil properties显示文摘 | Armstrong A C | 1986 | Journal of soil science1986，37，： | 1 |
| 20 | Chief executive officer equity incentives and accounting irregularities 显示文摘 | ARMSTRONG C S JAGOLINZER A D LARCKER D F | 2010 | Journal of Accounting Research2010，48，： | 1 |
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