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See detailPeer-Review : De l'évidence scientifique à la pratique professionnelle de qualité
Maquet, Didier ULg

in Axxon - Qualité en Kinésithérapie (2010)

Detailed reference viewed: 22 (5 ULg)
See detailPeers, leisure, delinquant acting-out, collective delinquency
Born, Michel ULg; De Leval, F.; Gavray, Claire ULg

in Younger-Tas, J. (Ed.) Delinquant behavior among people in the Western countries : tome II (1999)

Detailed reference viewed: 31 (5 ULg)
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See detailPegase : Outil opérationnel de modélisation de la qualité des eaux de surface
Deliège, Jean-François ULg; Everbecq, Etienne ULg; Grard, Aline ULg et al

Poster (2011, January)

Pegase (Planification Et Gestion de l’ASsainissement des Eaux) est un modèle intégré bassins hydrographiques/rivières qui permet de calculer de façon déterministe et prévisionnelle la qualité des eaux des ... [more ▼]

Pegase (Planification Et Gestion de l’ASsainissement des Eaux) est un modèle intégré bassins hydrographiques/rivières qui permet de calculer de façon déterministe et prévisionnelle la qualité des eaux des rivières en fonction des rejets et apports de pollution (relation pression-impact), pour des situations hydrologiques constantes ou non-stationnaires. Pegase est un outil opérationnel doté d’une interface conviviale, s’interfaçant avec des outils propriétaires de type ArcGIS et permettant d’orienter les choix des opérateurs publics et privés en matière de gestion des eaux de surface à l’échelle des bassins versants. [less ▲]

Detailed reference viewed: 89 (27 ULg)
See detailPEGASE - A space interferometer for the spectro-photometry of Pegasides
Absil, Olivier ULg

Scientific conference (2004, August 25)

Pegase is an answer to the CNES call for ideas for a scientific payload on its Formation Flying technological mission. It proposes a Bracewell interferometer operating in the infrared (1.5 – 6 microns ... [more ▼]

Pegase is an answer to the CNES call for ideas for a scientific payload on its Formation Flying technological mission. It proposes a Bracewell interferometer operating in the infrared (1.5 – 6 microns) and visible regimes. It has small telescopes (40 cm) but a substantial baseline (25 to 500 m). Its angular resolution reaches 1 mas at 4 microns and 100 micro-as at 0.4 microns. Its main scientific objectives are the spectroscopic study of weak companions including pegasides and brown dwarfs bounded to other stars. The goal is to determine the composition of the atmospheres of these objects as well as their cloud structure. [less ▲]

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See detailPEGASE : Planification Et Gestion de l'ASsainissement des Eaux : Présentation générale du modèle
Everbecq, Etienne ULg

Conference given outside the academic context (1995)

Le but de cette communication était de présenter aux acteurs du bassin Artois-Picardie le modèle PEGASE développé initialement pour la Région Wallonne et alors en cours d'application sur l'ensemble du ... [more ▼]

Le but de cette communication était de présenter aux acteurs du bassin Artois-Picardie le modèle PEGASE développé initialement pour la Région Wallonne et alors en cours d'application sur l'ensemble du bassin de l'Escaut dans le cadre d'un programme LIFE [less ▲]

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See detailPEGASE : UN MODÈLE INTÉGRÉ BASSIN HYDROGRAPHIQUE / RIVIÈRES POUR LA DIRECTIVE CADRE EUROPÉENNE
Deliège, Jean-François ULg; Everbecq, Etienne ULg; Grard, Aline ULg et al

Conference (2009, April 09)

Presentation of the PEGASE model (Planification Et Gestion de l’ASsainissement des Eaux), developed by the Aquapole Aquapole. New operational way to assess the evolution of the river quality in terms of ... [more ▼]

Presentation of the PEGASE model (Planification Et Gestion de l’ASsainissement des Eaux), developed by the Aquapole Aquapole. New operational way to assess the evolution of the river quality in terms of presures on them, as well as a tool to help competent authorities to optimise the cost/efficiency ratio of the measures foreseen to reduce the impact of these pressures. [less ▲]

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See detailPegase modelling studies applied to micropollutants: use cases
Grard, Aline ULg; Everbecq, Etienne ULg; Deliège, Jean-François ULg

Poster (2012, June)

For the last years, PEGASE model has been used in two studies aiming at better assessment of the source and behaviour of micropollutants in the rivers network. In the first study, with financial support ... [more ▼]

For the last years, PEGASE model has been used in two studies aiming at better assessment of the source and behaviour of micropollutants in the rivers network. In the first study, with financial support from INERIS1, the PEGASE model has been used to simulate the fate of micropollutants (Cd, Zn & Cu) within the basins of the Meuse and the Adour. The choice of the modelled micropollutants and sub-basins has been performed in agreement with INERIS, the involved Water Agencies and the Aquapole. A major selection criterion was the availability of data (discharges and in-situ measurements). For the second study, the PEGASE model has been adapted to describe the cocaine fate (or rather one of its stable metabolite: benzoylecgonine–BZE) in surface water. The BZE has been added to the model as an additional micropollutant, thanks to the implementation of a new state variable. Simulations of BZE have been done in Belgium, where many measurements from the COWAT project [3] were available. The first results show a good matching between calculated and measured values. The ability of the model to simulate the fate of micropollutants (including emerging substances) within surface water has been demonstrated, but still requires enhancements and extension to other substances and sub-basins. In addition, these studies have shown the huge work remaining in discharge inventories. [less ▲]

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See detailThe PEGASE project: characterisation of "Pegasi planets" and Brown Dwarfs
Baudoz, P.; Rouan, D.; Schneider, J. et al

in Combes, F.; Barret, D.; Contini, T. (Eds.) et al SF2A-2004: Semaine de l'Astrophysique Francaise (2004, December 01)

I will present the PEGASE project proposed within the framework of the CNES call for idea on flights in formation. This ambitious project, gathering a dozen laboratories, proposes an interferometry ... [more ▼]

I will present the PEGASE project proposed within the framework of the CNES call for idea on flights in formation. This ambitious project, gathering a dozen laboratories, proposes an interferometry mission in infrared I(1.5 to 6 µm) with spectroscopic capabilities. The bases of the interferometer will reach up to 500m, giving to PEGASE a resolution higher than the milli-arcsecond. The interferometric recombination includes a very simple mode, measurement of the visibility by excursion of the optical path difference and a mode in black fringe or nulling. The very high angular resolution of the instrument and high dynamical range with the nulling mode will allow to consider exciting scientific objectives: the characterization of Pegasids or hot Jupiters, the study of the internal structure and the atmospheres of brown dwarfs and the analysis of the internal areas of proto-planetary disks. I will first of all describe the basic configuration of the mission and will show that its simplicity ensures the feasibility of the project. I will explain then the relevance of such an instrument for the characterization of Pegasids. I will detail finally the various possible technical options to be attached to the initial version, in order to increase the effectiveness of the mission and to extend its scientific objectives. [less ▲]

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See detailPegase, a model dedicated to Surface WAter Quality Assessment that helps stakeholders implementing the WFD
Deliège, Jean-François ULg; Grard, Aline ULg; Everbecq, Etienne ULg et al

Conference (2011, April 06)

Pegase, a model dedicated to surface water quality assessment that helps stakeholders implementing the WFD. That presentation showed 2 different applications directly made by the stakeholders in charge of ... [more ▼]

Pegase, a model dedicated to surface water quality assessment that helps stakeholders implementing the WFD. That presentation showed 2 different applications directly made by the stakeholders in charge of the water management at the basin scale. The end-users analysed results of the Pegase model in the scope of implementation of the WFD. Differents scenarios were build in order to simulate the way to reach the good status for water bodies. Associated costs were estimated and relevant decisions were oriented using the results of the numerical Pegase tool. [less ▲]

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See detailPegase, A software dedicated to Surface Water Quality Assessment and to European database reporting
Deliège, Jean-François ULg; Everbecq, Etienne ULg; Magermans, Pol ULg et al

in Hrebiceck, Jiri (Ed.) Proceedings of the European conference TOWARDS eENVIRONMENT, Opportunities of SEIS and SIZE: Integrating Environmental Knowledge in Europe (2009, March)

The Aquapôle of the University of Liège has been involved in environment modelling for more than 20 years. Its R&D unit focused on the domain of surface water, targeted to water quality. One of its ... [more ▼]

The Aquapôle of the University of Liège has been involved in environment modelling for more than 20 years. Its R&D unit focused on the domain of surface water, targeted to water quality. One of its environmental models, called PEGASE (Planification Et Gestion de l’ASsainissement des Eaux), French acronym for ―Planning and management of water purification‖ is devoted to the characterization of the environmental state of surface water, at the scale of a whole watershed, basin and district. The software has been used operationally in several countries like France and Benelux, but several calculations have also been performed at international level for the international commissions in charge of the Scheldt and the Meuse. PEGASE model requires as input, at least data like digital terrain models, water flow, water level and other hydrodynamic measurements in some geo-localized points, diffuse loads properties, ecological model data (to characterize bacteria, phytoplankton, zooplankton, macrophytes, shells, etc…), chemical discharges (from industry and cities) and treatment plant effect. The output of the software consists in tables, graphs and maps, showing the state of various calculated parameters of quality (DO, BOD, COD, N, P, Chla,… + indices) either at a specified time, along the river, or the temporal evolution at a given point. It provides printed maps or animations of the evolution of the results on the basin. The software is able to simulate non stationary scenarios from a local scale, up to a global scale i.e. a few km² to hundreds of thousands km² and handles the entire river tree (hundreds to thousands of water bodies). Some results of the model are already used to populate the SoE-Wise databases. On another hand, the model is a tool to validate and check consistency of SoE-Wise data at district (and thus international) level. The flexibility of the model enables to choose the time (daily to yearly periods) and spatial (watershed, water body, district, region, country …) scales of the expected results. PEGASE is also a full-scale operational tool for WFD implementation and WISE databases. This means that our partners handle a software (also known as the model) directly usable – and of direct help – in the implementation of the WFD and other water related directives. The model allows the member states to compare efficiently the collected international WISE data and populate database with relevant model results. We propose not only to read the data directly from the database to avoid manipulation mistakes, but also we propose to generate output data in a format directly exploitable by WISE databases administration. [less ▲]

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See detailPEGASE, an infrared interferometer to study stellar environments and low mass companions around nearby stars
Ollivier, M.; Absil, Olivier ULg; Allard, F. et al

in Experimental Astronomy (2009), 23

PEGASE is a mission dedicated to the exploration of the environment (including habitable zone) of young and solar-type stars (particularly those in the DARWIN catalogue) and the observation of low mass ... [more ▼]

PEGASE is a mission dedicated to the exploration of the environment (including habitable zone) of young and solar-type stars (particularly those in the DARWIN catalogue) and the observation of low mass companions around nearby stars. It is a space interferometer project composed of three free flying spacecraft, respectively featuring two 40 cm siderostats and a beam combiner working in the visible and near infrared. It has been proposed to ESA as an answer to the first ``Cosmic Vision'' call for proposals, as an M mission. The concept also enables full-scale demonstration of space nulling interferometry operation for DARWIN. [less ▲]

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See detailPEGASE, an integrated river/basin model dedicated to surface water quality assessment: application to cocaine
Deliège, Jean-François ULg; Everbecq, Etienne ULg; Magermans, Pol ULg et al

in Acta Clinica Belgica (2010), 65(Supplement 1), 42-48

The Aquapôle of the University of Liège has been involved in environmental modeling for more than 20 years. Among other, its current R&D unit focuses on the compartment of surface water, and – for ... [more ▼]

The Aquapôle of the University of Liège has been involved in environmental modeling for more than 20 years. Among other, its current R&D unit focuses on the compartment of surface water, and – for modeling processes – is specialized on the water quality. One of its environmental models, called Pegase (Planification Et Gestion de l’ASsainissement des Eaux), French acronym for “Planning and management of water purification” is devoted to the modeling of the environmental state of surface water, at different scales from small watersheds (10 km²) and basins up to entire transnational Districts (more than 100.000 km²). The software is used operationally by several administrations (Agencies and Ministries) mainly through Europe (France and Benelux, Germany ...), and several calculations have also been performed at international District levels for international commissions (Scheldt, Meuse, Moselle ...) Recently, the Pegase model has been adapted to describe the cocaine’s behavior (using a stable metabolite of the cocaine in the environment: the benzoylecgonine) in waste water, waste water treatment plants (WWTP) and surface water. The cocaine is newly described in the model as an additional micropollutant (Pegase already treats numerous heavy metals), thanks to the implementation of new state variable equations and their specific parameterizations. At a first stage, only the urban sources (releases associated to the consumption by inhabitants) were considered as the industrial releases and the soil loads are assumed to be negligible. Simulations of benzoylecgonine have been done in the Walloon and Flemish regions, where many measurements from the COWAT project were available. These first results are showing a good agreement between calculated and measured values. This ability of the model to simulate the fate of the cocaine derivatives in surface waters should be continued and extended to other metabolites. [less ▲]

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See detailPEGASE, Planification et gestion de l'assainissement des eaux de surface
Smitz, Joseph ULg; Everbecq, Etienne ULg; Lorea, Bernard et al

Report (1991)

PEGASE (Planification Et Gestion de l’ASsainissement des Eaux) est un modèle intégré bassins hydrographiques/rivières qui permet de calculer de façon déterministe et prévisionnelle la qualité des eaux des ... [more ▼]

PEGASE (Planification Et Gestion de l’ASsainissement des Eaux) est un modèle intégré bassins hydrographiques/rivières qui permet de calculer de façon déterministe et prévisionnelle la qualité des eaux des rivières en fonction des rejets et apports de pollution (relation pression-impact). Ce rapport de synthèse reprend la description du travail réalisé pendant 3 ans, et qui a permis de construire la première version du modèle, appliquée sur le territoire de la Région Wallonne. [less ▲]

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See detailPEGASE, une méthodologie et un outil de simulation prévisionnelle pour la gestion de la qualité des eaux de surface
Smitz, Joseph ULg; Everbecq, Etienne ULg; Deliège, Jean-François ULg et al

in Tribune de l'Eau (La) (1997), 50/4(588), 73-82

PEGASE (Planification Et Gestion de l’ASsainissement des Eaux) est un modèle intégré bassins hydrographiques/rivières développé à l’Aquapôle qui permet de calculer de façon déterministe et prévisionnelle ... [more ▼]

PEGASE (Planification Et Gestion de l’ASsainissement des Eaux) est un modèle intégré bassins hydrographiques/rivières développé à l’Aquapôle qui permet de calculer de façon déterministe et prévisionnelle la qualité des eaux des rivières en fonction des rejets et apports de pollution. PEGASE est un outil opérationnel permettant d’orienter les choix des opérateurs publics et privés en matière de gestion des eaux de surface à l’échelle des bassins versants [less ▲]

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See detailPEGASE... towards DARWIN
Ollivier, M.; Le Duigou, J.-M.; Mourard, D. et al

in Casoli, F.; Contini, T.; Hameury, J.-M. (Eds.) et al SF2A-2005: Semaine de l'Astrophysique Francaise (2005, December 01)

The space mission PEGASE, proposed to CNES in the framework of its call for scientific proposals on "formation flying", is a 2-aperture interferometer, composed by 3 free flying satellites. With an ... [more ▼]

The space mission PEGASE, proposed to CNES in the framework of its call for scientific proposals on "formation flying", is a 2-aperture interferometer, composed by 3 free flying satellites. With an angular resolution of a few mas and a spectral resolution of several tens in the spectral range 2.5-5 mum, PEGASE has several goals: - science: spectroscopy of hot jupiters (Pegasides) and brown dwarves, exploration of the inner part of protoplanetary disks; - technology: validation in real space conditions of formation flying, nulling and visibility interferometry concepts. PEGASE, presently in 0-phase study takes place in the context of DARWIN preparation. We detail in this paper the present situation of this project [less ▲]

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See detailPEGASE: a DARWIN/TPF pathfinder
Ollivier, M.; Le Duigou, J.-M.; Mourard, D. et al

in Aime, C.; Vakili, F. (Eds.) Direct Imaging of Exoplanets: Science & Techniques (2006)

The space mission PEGASE, proposed to the CNES (Centre National d'Etudes Spatiales = French Space Agency) in the framework of its call for scientific proposals : "formation flying missions", is a 2 ... [more ▼]

The space mission PEGASE, proposed to the CNES (Centre National d'Etudes Spatiales = French Space Agency) in the framework of its call for scientific proposals : "formation flying missions", is a 2-aperture interferometer, composed by 3 free flying satellites (2 siderostats and 1 beam combiner), allowing baselines from 50 to 500 m in both nulling and visibility modes. With an angular resolution of a few mas and a spectral resolution of several tens in the spectral range 2.5-5 microns, PEGASE has several goals:science : spectroscopy of hot jupiters (Pegasides) and brown dwarves, exploration of the inner part of protoplanetary diskstechnology : validation in real space conditions of formation flying, nulling and visibility interferometry concepts.PEGASE has been studied at a 0-level. In this paper, we summarize the scientific program and associated technological and mission trade-off coming from this 0-level study. We also discuss how PEGASE can be considered as a TPF/DARWIN pathfinder in an international roadmap towards more complex space interferometry missions such as DARWIN/TPF. [less ▲]

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See detailPegase: a space-based nulling interferometer
Le Duigou, J. M.; Ollivier, M.; Léger, A. et al

in Mather, John C.; MacEwen, Howard A.; de Graauw, Mattheus W. M. (Eds.) Space Telescopes and Instrumentation I: Optical, Infrared, and Millimeter (2006, July 01)

The space based mission Pegase was proposed to CNES in the framework of its call for scientific proposals for formation flying missions. This paper presents a summary of the phase-0 performed in 2005. The ... [more ▼]

The space based mission Pegase was proposed to CNES in the framework of its call for scientific proposals for formation flying missions. This paper presents a summary of the phase-0 performed in 2005. The main scientific goal is the spectroscopy of hot Jupiters (Pegasides) and brown dwarfs from 2.5 to 5 mum. The mission can extend to other objectives such as the exploration of the inner part of protoplanetary disks, the study of dust clouds around AGN,... The instrument is basically a two-aperture (D=40 cm) interferometer composed of three satellites, two siderostats and one beam-combiner. The formation is linear and orbits around L2, pointing in the anti-solar direction within a +/-30° cone. The baseline is adjustable from 50 to 500 m in both nulling and visibility measurement modes. The angular resolution ranges from 1 to 20 mas and the spectral resolution is 60. In the nulling mode, a 2.5 nm rms stability of the optical path difference (OPD) and a pointing stability of 30 mas rms impose a two level control architecture. It combines control loops implemented at satellite level and control loops operating inside the payload using fine mechanisms. According to our preliminary study, this mission is feasible within an 8 to 9 years development plan using existing or slightly improved space components, but its cost requires international cooperation. Pegase could be a valuable Darwin/TPF-I pathfinder, with a less demanding, but still ambitious, technological challenge and a high associated scientific return. [less ▲]

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See detailPEGASE: UN MODÈLE INTÉGRÉ BASSIN HYDROGRAPHIQUE/ RIVIÈRES: PREMIÈRE APPLICATION TEST À LA COCAÏNE.
Deliège, Jean-François ULg; Everbecq, Etienne ULg; Magermans, Pol ULg et al

Conference (2009, October 15)

Le modèle PEGASE (Planification Et Gestion de l’ASsainissement des Eaux), développé à l’Aquapôle de l’Université de Liège a été utilisé pour réaliser une première simulation test de la cocaïne dans le ... [more ▼]

Le modèle PEGASE (Planification Et Gestion de l’ASsainissement des Eaux), développé à l’Aquapôle de l’Université de Liège a été utilisé pour réaliser une première simulation test de la cocaïne dans le réseau hydrographique belge. La principale conclusion de cette simulation test est qu’il est possible de simuler le devenir des dérivés de la cocaïne dans les eaux de surface ; cela démontre également la cohérence des mesures réalisées dans le cadre de l’étude COWAT. Des améliorations mineures au modèle PEGASE et aux données d’entrée seraient cependant souhaitables pour améliorer cette modélisation (possibilité de faire varier l’équivalent-habitant par zones). [less ▲]

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See detailPegfilgrastim compared with Filgrastim after autologous hematopoietic peripheral blood stem cell transplantation.
Vanstraelen, Gaetan; Frere, Pascale ULg; Ngirabacu, Marie-Christine et al

in Experimental hematology (2006), 34(3), 382-8

In order to assess the effect of Pegfilgrastim on the duration of neutropenia and clinical outcome of patients after autologous peripheral blood stem cell (PBSC) transplantation, we compared 20 ... [more ▼]

In order to assess the effect of Pegfilgrastim on the duration of neutropenia and clinical outcome of patients after autologous peripheral blood stem cell (PBSC) transplantation, we compared 20 consecutive patients with lymphoma or multiple myeloma receiving a single 6-mg dose of Pegfilgrastim on day 1 posttransplant to an historical control group of 60 patients receiving daily Filgrastim 5 microg/kg starting on day 1 posttransplant. The duration of neutropenia was similar in the Pegfilgrastim group compared with the control group. There were no differences in time to neutrophil, erythroid, or platelet engraftment nor in the incidence of fever and infections. The duration of antibiotic therapy, transfusion support, and time to hospital discharge were similar in the two groups. However, after initial hematopoietic reconstitution, we observed significantly higher values of lymphocytes (e.g., 1,660+/-1,000 versus 970+/-460 on day 80, p=0.0002), neutrophils (e.g., 3,880+/-2,030 versus 2,420+/-1,500 on day 25, p=0.0004), reticulocytes (e.g., 148,160+/-90,590 versus 87,140+/-65,920 on day 25, p<0.0001), and platelets (e.g., 210,700+/-116,090 versus 150,240+/-58,230 on day 55, p=0.0052) up to day 100 in the Pegfilgrastim group compared with the Filgrastim group. These observations had no impact on clinical outcome of the patients after day 30 due to the low incidence of infectious events after engraftment in autologous PBSC transplantation. We conclude that the effect of Pegfilgrastim administrated on day 1 posttransplant is comparable to that of daily Filgrastim on initial hematopoietic reconstitution. The possibly superior effect of Pegfilgrastim on cell counts we observed after initial engraftment should be further tested in a prospective randomized trial. [less ▲]

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See detailPeginterferon alpha-2b is safe and effective in HBeAg-positive chronic hepatitis B patients with advanced fibrosis.
Buster, Erik H C J; Hansen, Bettina E; Buti, Maria et al

in Hepatology (Baltimore, Md.) (2007), 46(2), 388-94

Chronic hepatitis B (CHB) patients with advanced fibrosis are often not considered for treatment with peginterferon (PEG-IFN) because IFN therapy may precipitate immunological flares, potentially inducing ... [more ▼]

Chronic hepatitis B (CHB) patients with advanced fibrosis are often not considered for treatment with peginterferon (PEG-IFN) because IFN therapy may precipitate immunological flares, potentially inducing hepatic decompensation. We investigated the efficacy and safety of treating hepatitis B e antigen (HBeAg)-positive CHB patients with 52 weeks of PEG-IFN-alpha-2b (100 microg weekly) alone or in combination with lamivudine (100 mg daily). Seventy patients with advanced fibrosis (Ishak fibrosis score 4-6) and 169 patients without advanced fibrosis, all with compensated liver disease, participated in the study. Virologic response, defined as HBeAg seroconversion and hepatitis B virus (HBV) DNA < 10,000 copies/ml at week 78, occurred significantly more often in patients with advanced fibrosis than in those without (25% versus 12%, respectively; P = 0.02). Also patients with cirrhosis (n = 24) exhibited a virologic response more frequently than did patients without cirrhosis (30% versus 14%, respectively; P = 0.02). Improvement in liver fibrosis occurred more frequently in patients with advanced fibrosis (66% versus 26%, P < 0.001). HBV genotype A was more prevalent among patients with advanced fibrosis than among those without (57% versus 24%, P < 0.001). Most adverse events, including serious adverse events, were observed equally as frequently in patients with advanced fibrosis and those without. Fatigue, anorexia, and thrombocytopenia occurred more often in patients with advanced fibrosis than in those without (P < 0.01). Necessary dose reduction or discontinuation of therapy was comparable for both patient groups (P = 0.92 and P = 0.47, respectively). CONCLUSION: PEG-IFN is effective and safe for HBeAg-positive patients with advanced fibrosis. Because PEG-IFN therapy results in a high rate of sustained off-therapy response, patients with advanced fibrosis or cirrhosis but compensated liver disease should not be excluded from PEG-IFN treatment. [less ▲]

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