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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 | 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 |
| 3 | 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 |
| 4 | 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 |
| 5 | Distributed lag non-linear models显示文摘 | Gasparrini A Armstrong B Kenward M G | 2010 | Statistics in Medicine2010，29，： | 1 |
| 6 | Contribution of deep-level defects to decreasing radiativeefficiency of InGaN/GaN quantum wells with increasingemission wavelength 显示文摘 | ARMSTRONG A CRAWFORD M KOLESKE D | 2014 | Applied Physics Express2014，7，3： | 1 |
| 7 | Comparing the robustness of ordinary kriging and lognormal kriging: Outlier resistance 显示文摘 | Armstrong M Boufassa A | 1988 | Mathematical Geology1988，20，： | 1 |
| 8 | Nucleotide sequence,organization and nature of protein products of the carotenoid biosynthesis gene cluster of Rhodobacter capsulatus显示文摘 | ARMSTRONG G A ALBERTI M LEACH F | 1989 | Mol Gen Genet1989，216，： | 1 |
| 9 | Hindlimb muscle fiber populations of five mammals显示文摘 | Ariano M A Armstrong R B Edgerton V R | | 0，，01： | 1 |
| 10 | Diversity of Babesia infecting deer ticks ( Ixodes dammini ) 显示文摘 | Armstrong P M Katavolos P Caporale D A | 1998 | Am J Trop Med Hyg1998，58，： | 1 |
| 11 | Distributed lag non-linear models显示文摘 | Gasparrini A Armstrong B Kenward M | 2010 | Stat Med2010，29，21： | 1 |
| 12 | Magnetic resonance imagining ( MRI ) and beta-human chorionic gonadotrophin (beta-hCG) follow up placenta percreta 显示文摘 | El-Bialy G Lassab A Armstrong M | 2007 | Arch Gynecol Obstet2007，276，4： | 1 |
| 13 | 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 |
| 14 | The purification and characterization of a fatty acid binding protein specific to pig (Sus domesticus) adipose tissue 显示文摘 | ARMSTRONG M K BERNLOHR D A STORCH J | 1990 | The Biochemical Journal1990，267，2： | 1 |
| 15 | 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 |
| 16 | Structure and lithium transport pathways in Li2FeSiO4 cathodes for lithium batteries 显示文摘 | Armstrong A R Kuganathan N Islam M S | 2011 | J Am Chem Soc2011，133，13： | 1 |
| 17 | Incorporating Technical Uncertainty in Real Option Valuation of Oil Projects 显示文摘 | ARMSTRONG M GALLI A BAILEY W | 2004 | Journal of Petroleum Science and Engineering2004，44，： | 1 |
| 18 | Relationship between follicle size and oocyte developmental competence in prepubertal and adult pigs显示文摘 | Bagg M A Nottle M B Armstrong D T | 2007 | Reprod Fertil Dev2007，19，7： | 1 |
| 19 | Suspension arrays for high throughput, multiplexed single nucleotide polymorphism genotyping 显示文摘 | Armstrong B Tewart S M Mazumder A | 2000 | Cytometry2000，40，2： | 1 |
| 20 | Application of binomial and multinomial probaility statistics to the sampling design process of a global grain tracing and recall system显示文摘 | Lee K M Armstrong P R Thomasson J A | 2011 | Food Control2011，，22： | 1 |
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