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See detailL’intention des maitres de stage lié à l’utilisation d’un référentiel de compétences
Detroz, Pascal ULiege; Giet, Didier ULiege; MASSART, Valérie ULiege et al

Conference (2017, October 05)

En s’appuyant notamment sur deux référentiels internationaux : le WONCA tree et le Canmeds une équipe de travail, constituée des enseignants du département de médecine générale de notre institution ... [more ▼]

En s’appuyant notamment sur deux référentiels internationaux : le WONCA tree et le Canmeds une équipe de travail, constituée des enseignants du département de médecine générale de notre institution, accompagnés de 20 médecins en activité, a listé les activités et tâches que devait pouvoir accomplir un clinicien compétent. Ils ont ensuite organisé ces tâches en six grandes catégories. Pour chacune d’elles, une compétence centrale a été identifiée, ainsi qu’une série de familles de situations dans lesquelles cette compétence est mobilisée. Une fois finalisé, le document a été soumis à un panel d’experts de terrain et aux étudiants pour validation afin de s’assurer que le projet soit perçu comme dynamique et mobilisant. Le référentiel terminé, la seconde étape méthodologique a été la reconfiguration de l’enseignement pour qu’il permette l’atteinte des compétences visées. Le problème qui s’est posé à l’équipe enseignante est qu’une partie importante de la formation se fait en dehors des murs de l’université : elle se passe en de nombreux lieux de stage sous la supervision de maîtres de stage, souvent des médecins en activité ayant pour la plupart peu de lien avec la faculté. Afin d’être efficace, il est cependant nécessaire que l’ensemble des intervenants dans la formation des étudiants, y compris ces maîtres de stages, utilise le référentiel de formation comme référent aux activités d’apprentissages proposées aux étudiants. Or, une telle utilisation ne coule pas de source. L’objectif de cette étude est de connaître les intentions des maîtres de stage (MdS) quant à cette utilisation. Afin de connaître les éléments prédicteurs de cette intention, nous avons fait appel à la théorie du comportement planifié (Ajzen, 1985, 1991 ; Ajzen et Fishbein, 2005) pour guider notre démarche. Ce modèle est réputé comme étant le plus puissant pour prédire les comportements. Il a été utilisé dans de très nombreuses études, y compris dans le domaine de la santé. (Reid et Wood, 2008, Hardeman et al, 2002, Stecker, Fortney, Hamilton et Ajzen, 2007)… Selon cette théorie le comportement peut être directement prédit à partir d’une intention et celle-ci est déterminée par trois facteurs. [1] l’attitude envers le comportement [2] La norme subjective et [3] Le contrôle perçu. Conformément à la méthodologie proposée par Ajzen, nous avons dès lors conçu un questionnaire mesurant de manière directe et indirecte les divers paramètres de ce modèle (attitudes, normes sociales et contrôle perçu) sur la base de sept entretiens avec des maîtres de stage. Ce questionnaire a ensuite été proposé à la population des Maitre de Stage. Nous avons obtenu 68 réponses. Après avoir effectué des régressions hiérarchiques pas à pas ascendantes, nous avons conclu qu’ensemble, les attitudes, les normes sociales et le contrôle perçu expliquaient 83 % de l’intention d’utiliser le référentiel. D’autres analyses ont permis de déterminer les leviers et les freins influant directement sur cette intention. Ils seront présentés lors de notre communication. [less ▲]

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See detailL’histoire de l’intégration européenne : les grands acteurs et leur rôle
Michel, Quentin ULiege

Learning material (2017)

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See detailDeveloping a prognosis tool for urolithiasis with obstruction in Belgian blue cattle breed.
Casalta, Hélène ULiege; Greban de Saint Germain, Coralie; Djebala, Salem ULiege et al

Conference (2017, October 04)

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See detailDroplet manipulation on a fiber network
Weyer, Floriane ULiege

Doctoral thesis (2017)

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See detailValidité et utilité d'un test d'orientation dans le secteur de la santé en Fédération Wallonie Bruxelles
Detroz, Pascal ULiege; Monseur, Christian ULiege; Romainville, Marc et al

Poster (2017, October 04)

La Fédération Wallonie Bruxelles de Belgique n’avait pas, jusqu’en 2016, de Filtres à l’entrée des études de Médecine. Elle avait par contre un test diagnostique, formatif, obligatoire, mais non ... [more ▼]

La Fédération Wallonie Bruxelles de Belgique n’avait pas, jusqu’en 2016, de Filtres à l’entrée des études de Médecine. Elle avait par contre un test diagnostique, formatif, obligatoire, mais non contraignant (il n'avait pas d'effet sur l'avenir des étudiants). Ce test se présentait sous la forme d’un questionnaire à choix multiple (QCM) évaluant plusieurs matières : la chimie, la physique, la biologie, les mathématiques, le français et l’anglais. Il se déroulait en même temps sur le site des cinq universités concernées par les études dans le domaine de la santé de la FWB. Les questions du test sont identiques dans ces différentes universités. Il a été organisé entre 2013 et 2016 , deux fois par année en juillet et septembre. L’enjeu était de permettre aux étudiants de mesurer leur compétence à l’entrée des études pour se rassurer (pour les plus fort d’entre eux), pour s’améliorer à travers des activités de remédiation, ou éventuellement pour renoncer (pour les pl us faible d’entre eux). La présente étude a pour objet d’évaluer l’efficacité de ce test diagnostic. Concrètement, les objectifs de l'étude décrite étaient de/d’ : 1. Analyser la qualité psychométrique du test d'orientation. 2. Établir le lien entre les données biographiques de l’étudiant et les résultats au test d'orientation. 4. Établir le lien entre les résultats au test d'orientation et l’inscription réelle en faculté de médecine.(l'effet de dissuasion du test) 3. Établir le lien entre le test d'orientation et la réussite globale et par matière à la fin de la première année. Nos conclusions générales sont les suivantes : Les tests d’orientation présentent une bonne qualité psychométrique. C’est toutefois plus vrai pour les disciplines scientifiques que pour l’anglais et le français. Le test vise bien les aptitudes spécifiques et les compétences prérequises pour entreprendre des études supérieures dans le secteur de la santé. Les candidats proviennent d’un milieu socio-économique élevé et présentent un parcours scolaire au dessus de la moyenne. Ces variables expliquent, chez les étudiants diplômés du secondaire en Belgique, plus de 30% de la variance du score de sciences au test d'orientation (score factorisé à partir des scores de maths, bio, chimie et physique) et plus de 10% du score de langue (score factorisé à partir des scores de français et d’anglais) à ce même test. Ces mêmes variables de présage expliquent aussi en partie le résultat en fin de premier bachelier (22% de variance expliquée pour les étudiants diplômés en Belgique, 34% pour les étudiants diplômés en France). Les résultats aux tests d’orientation, quant à eux, expliquent ensemble 29% de la variance aux résultats de bac1 pour les étudiants diplômés en Belgique et 17% pour ceux diplômés en France. Le test de sciences s’avère beaucoup plus prédictif que le test de langues Les test dissuade peu les étudiants les plus faibles de s’inscrire. Ces résultats seront présentés lors de la communication [less ▲]

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See detailMontages structuralistes dans Les Temps Modernes
Cormann, Grégory ULiege

Scientific conference (2017, October 02)

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See detailProbing dark matter substructure in the gravitational lens HE 0435‑1223 with the WFC3 grism
Nierenberg, A. M.; Treu, T.; Brammer, G. et al

in Monthly Notices of the Royal Astronomical Society (2017), 471

Strong gravitational lensing provides a powerful test of Cold Dark Matter (CDM) as it enables the detection and mass measurement of low mass haloes even if they do not contain baryons. Compact lensed ... [more ▼]

Strong gravitational lensing provides a powerful test of Cold Dark Matter (CDM) as it enables the detection and mass measurement of low mass haloes even if they do not contain baryons. Compact lensed sources such as Active Galactic Nuclei (AGN) are particularly sensitive to perturbing subhalos, but their use as a test of CDM has been limited by the small number of systems which have significant radio emission which is extended enough avoid significant lensing by stars in the plane of the lens galaxy, and red enough to be minimally affected by differential dust extinction. Narrow-line emission is a promising alternative as it is also extended and, unlike radio, detectable in virtually all optically selected AGN lenses. We present first results from a WFC3 grism narrow-line survey of lensed quasars, for the quadruply lensed AGN HE0435-1223. Using a forward modelling pipeline which enables us to robustly account for spatial blending, we measure the [OIII] 5007 \AA~ flux ratios of the four images. We find that the [OIII] fluxes and positions are well fit by a simple smooth mass model for the main lens. Our data rule out a $M_{600}>10^{8} (10^{7.2}) M_\odot$ NFW perturber projected within $\sim$1\farcs0 (0\farcs1) arcseconds of each of the lensed images, where $M_{600}$ is the perturber mass within its central 600 pc. The non-detection is broadly consistent with the expectations of $\Lambda$CDM for a single system. The sensitivity achieved demonstrates that powerful limits on the nature of dark matter can be obtained with the analysis of $\sim20$ narrow-line lenses. [less ▲]

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See detailBayesian Multi-Objective Optimisation of Neotissue Growth in a Perfusion Bioreactor Set-up
olofsson, Simon; Mehrian, Mohammad ULiege; Geris, Liesbet ULiege et al

Scientific conference (2017, October 01)

We consider optimising bone neotissue growth in a 3D scaffold during dynamic perfusion bioreactor culture. The goal is to choose design variables by optimising two conflicting objectives: (i) maximising ... [more ▼]

We consider optimising bone neotissue growth in a 3D scaffold during dynamic perfusion bioreactor culture. The goal is to choose design variables by optimising two conflicting objectives: (i) maximising neotissue growth and (ii) minimising operating cost. Our contribution is a novel extension of Bayesian multi-objective optimisation to the case of one black-box (neotissue growth) and one analytical (operating cost) objective function, that helps determine, within a reasonable amount of time, what design variables best manage the trade-off between neotissue growth and operating cost. Our method is tested against and outperforms the most common approach in literature, genetic algorithms, and shows its important real-world applicability to problems that combine black-box models with easy-to-quantify objectives like cost. [less ▲]

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See detailH0LiCOW - II. Spectroscopic survey and galaxy-group identification of the strong gravitational lens system HE 0435-1223
Sluse, Dominique ULiege; Sonnenfeld, A.; Rumbaugh, N. et al

in Monthly Notices of the Royal Astronomical Society (2017), 470

Galaxies located in the environment or along the line of sight towards gravitational lenses can significantly affect lensing observables, and can lead to systematic errors on the measurement of H[SUB]0 ... [more ▼]

Galaxies located in the environment or along the line of sight towards gravitational lenses can significantly affect lensing observables, and can lead to systematic errors on the measurement of H[SUB]0[/SUB] from the time-delay technique. We present the results of a systematic spectroscopic identification of the galaxies in the field of view of the lensed quasar HE 0435-1223 using the W. M. Keck, Gemini and ESO-Very Large telescopes. Our new catalogue triples the number of known galaxy redshifts in the direct vicinity of the lens, expanding to 102 the number of measured redshifts for galaxies separated by less than 3 arcmin from the lens. We complement our catalogue with literature data to gather redshifts up to 15 arcmin from the lens, and search for galaxy groups or clusters projected towards HE 0435-1223. We confirm that the lens is a member of a small group that includes at least 12 galaxies, and find 8 other group candidates near the line of sight of the lens. The flexion shift, namely the shift of lensed images produced by high-order perturbation of the lens potential, is calculated for each galaxy/group and used to identify which objects produce the largest perturbation of the lens potential. This analysis demonstrates that (i) at most three of the five brightest galaxies projected within 12 arcsec of the lens need to be explicitly used in the lens models, and (ii) the groups can be treated in the lens model as an external tidal field (shear) contribution. [less ▲]

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See detailSurveillance de l'atmosphère terrestre depuis la station du Jungfraujoch : une épopée liégeoise entamée voici plus de 65 ans !
Mahieu, Emmanuel ULiege; Bader, Whitney ULiege; Bovy, Benoît ULiege et al

in Bulletin de la Société Géographique de Liège (2017), 68

It’s in the early 1950s that researchers from the University of Liège started to investigate the Earth’s atmosphere from the Jungfraujoch scientific station, in the Swiss Alps, at a time when concerns ... [more ▼]

It’s in the early 1950s that researchers from the University of Liège started to investigate the Earth’s atmosphere from the Jungfraujoch scientific station, in the Swiss Alps, at a time when concerns related to atmospheric composition changes were nonexistent. Since then, an infrared observational data base unique worldwide has been carefully collected. The exploitation of these observations has allowed constituting multi-decadal time series crucial for the characterization of the changes that affected our atmosphere and for the identification of their causes. In this paper, we first remind about the successive steps which led to establishing the observational program of the Liège team at the Jungfraujoch and we evoke important findings which justified its continuation. Then we present some recent results relevant to the Montreal and Kyoto Protocols, or related to the monitoring of air quality. [less ▲]

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See detailVive les hauts-fourneaux! Vers une reconnaissance du patrimoine sidérurgique en Wallonie
Drouguet, Noémie ULiege; Bodeux, Philippe

Book published by Urbagora (2017)

Marcinelle, Ougrée, Clabecq. Trois hauts-lieux de production de fonte et d'acier, dominés par la figure emblématique des hauts-founeaux. A l'arrêt depuis plusieurs années, devenus des friches, ils sont ... [more ▼]

Marcinelle, Ougrée, Clabecq. Trois hauts-lieux de production de fonte et d'acier, dominés par la figure emblématique des hauts-founeaux. A l'arrêt depuis plusieurs années, devenus des friches, ils sont appelés à disparaître prochainement. Avant qu’ArcelorMittal et Duferco ne rasent ces vestiges, les questions de régénération des sites et de préservation du patrimoine sont à étudier conjointement. Fermées, grillagées et laissées à l’abandon, ces forêts industrielles doivent s’ouvrir à ceux qui ont des propositions à défendre, qu'ils soient urbanistes, architectes, promoteurs, artistes, passeurs de mémoire. Les bassins voisins –la Ruhr, la Sarre ou la Lorraine – ont chacun gardé des témoins de l’épopée industrielle pour les recycler en parcs paysagers, musées, ville nouvelle ou espaces économiques. Point de départ de la révolution industrielle sur le continent, la Wallonie ne peut faire l’impasse sur une réflexion approfondie concernant le devenir des friches sidérurgiques. Ce numéro hors-série de Dérivation pose la question et tente de documenter le débat, plus complexe qu'il n'y paraît. Il entend à la fois plonger dans une réalité où se mêlent ville et industrie, en décrire ce qui échappe aux regards, mais aussi donner la parole à ceux qui l’ont côtoyée de près et amener quelques propositions. [less ▲]

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See detailRecent Evolutions and Trends in the Use of Computer Aided Chemical Engineering for Educational Purposes at the University of Liège
Léonard, Grégoire ULiege; Belboom, Sandra ULiege; Toye, Dominique ULiege et al

in Computer Aided Chemical Engineering (2017)

The present paper addresses the evolution and perspectives in the teaching of CAPE methods in the Department of Chemical Engineering at the University of Liège. The transition that happened in the 90ies ... [more ▼]

The present paper addresses the evolution and perspectives in the teaching of CAPE methods in the Department of Chemical Engineering at the University of Liège. The transition that happened in the 90ies with the arrival of commercial software is highlighted, as the learning outcomes evolved from the ability of building programs to solve chemical engineering problems towards the ability to use complex commercial software and to understand their limitations. Moreover, CAPE methods were extended to non-dedicated CAPE courses, which is illustrated here by the goals and challenges of their use in courses like “Reactor Engineering” and “Life Cycle Analysis”. It was observed that students sometimes assume that CAPE softwares provide straightforward and trustworthy solutions without the need of understanding their mathematical bases and assumptions. Thus, solutions to make students aware of these limitations are proposed, including the creation of an integrated project focussing on complex multi-disciplinary issues, evidencing the need for critical input from the operator. [less ▲]

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See detailPond drying cues and their effects on growth and metamorphosis in a fast developing amphibian
Székely, Diana ULiege; Denoël, Mathieu ULiege; Székely, Paul et al

in Journal of Zoology (2017), 303(2), 129-135

The hydroperiod of breeding habitats imposes a strong selection on amphibians and pond-breeding species usually exhibit a high degree of plasticity in the duration of larval period. However, the potential ... [more ▼]

The hydroperiod of breeding habitats imposes a strong selection on amphibians and pond-breeding species usually exhibit a high degree of plasticity in the duration of larval period. However, the potential for phenotypic plasticity in fast developing species was investigated only in a small number of anurans, and the specific response to environmental cues such as low water versus decreasing water level, as well as the effects of such cues on particular developmental stages, are even less understood. In this context, we investigated the plastic response to pond desiccation in a neotropical species (Ceratophrys stolzmanni) by raising tadpoles in three water level treatments: constant high, constant low and decreasing. The growth rates were the highest reported for amphibian tadpoles (up to 0.3g/day) and the time to metamorphosis was short in all treatments, with the fastest developing tadpole metamorphosing in only 16 days after egg deposition. Individuals from the constant high water level treatment had a higher growth rate than those in the other two treatments, whereas decreasing and constant low water levels had similar effects on development, speeding up metamorphosis. In turn, this involved a cost as these tadpoles had a lower body size and mass at metamorphosis than the ones raised in constant high water levels. The final stages of metamorphosis, when tadpoles are the most vulnerable, were shorter in tadpoles exposed to a decreasing water level, allowing them to leave water quickly. Our experiment demonstrates that phenotypic plasticity is maintained even in environments devoid of permanent aquatic habitats. Ceratophryd tadpoles are able to shorten their developmental time when they perceive a risk of desiccation and react similarly to cues coming from the two unfavorable water conditions showing their adaptation to ephemeral and unpredictable breeding habitats. [less ▲]

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See detailAdorno in France (1958-1961). The first critical Reception of the Critical Theory
Franck, Thomas ULiege

Scientific conference (2017, October)

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See detailThe Paleoproterozoic fossil record: Implications for the evolution of the biosphere during Earth's middle-age
Javaux, Emmanuelle ULiege; lepot, kevin

in Earth-Science Reviews (2017)

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See detailOn the phase behaviour of oxetane-CO2 and propargylic alcohols-CO2 binary mixtures by in situ infrared micro-spectrometry
Zaky, Mohamed; Boyaval, Amélie ULiege; Grignard, Bruno ULiege et al

in Journal of Supercritical Fluids (2017), 128

The phase behaviour of carbon dioxide/propargylic alcohols and carbon dioxide/oxetanes mixtures has been investigated using in-situ FTIR microspectrometry that allows us determining the evolution of the ... [more ▼]

The phase behaviour of carbon dioxide/propargylic alcohols and carbon dioxide/oxetanes mixtures has been investigated using in-situ FTIR microspectrometry that allows us determining the evolution of the concentration of each component in the liquid phase as a function of temperature and pressure. It was at the same time possible to look inside the cell and to visualize the expansion of the liquid phase during the increase of the pressure. The measurements were performed at three different temperatures (40, 70 and 100◦C) for pressures ranging between 0.1 and 15 MPa. Propargylic alcohol (PA), 2-methyl-3-butyn-2-ol (MBOL), 3-butyn-1-ol (BOL) and trimethylene oxide (TMO) were selected as these molecules are used in the synthesis of cyclic or polycarbonates by coupling with CO2. Thus, we determined the CO2 sorption and the concentration of the substrate in the liquid phase. Thanks to these measurements, we established the pressure-composition phase diagram for the liquid phase of these substrate/CO2 binary mixtures. [less ▲]

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See detailDu trou de ver au trou de serrure...
Gernay, Delphine; Moukhaiber, Sophie; Maenhout, Marine et al

in Revue des Hôpitaux de Jour Psychiatriques et des Thérapies Institutionnelles (2017), 19

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See detailSans titre (postface)
Dejasse, Erwin ULiege

in Muñoz, José; Sampayo, Carlos (Eds.) Le Bar à Joe (édition intégrale) (2017)

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See detailPraxis et anti-praxis des revues intellectuelles de l’immédiat après-guerre
Franck, Thomas ULiege

in Argumentation et Analyse du Discours (2017), 19

The sociodiscursive analysis of post-war intellectual reviews’ editorials, especially Socialisme ou Barbarie, gives rise to rhetorical and argumentative interpretations determined by the socio-historical ... [more ▼]

The sociodiscursive analysis of post-war intellectual reviews’ editorials, especially Socialisme ou Barbarie, gives rise to rhetorical and argumentative interpretations determined by the socio-historical context, by reviews’ editorial features and by the Marxist discursive formation. On the one hand the polemic dimension of these discourses (structured by a logic of ideological dispute), the reproduction of the fixed formula “marxisme véritable” and the use of ironical “îlots textuels” (parts of discourse that quote words of the opponent to discredit him) are all rhetorical examples of the influence of an intellectual discourse’s instituted state. On the other hand the militant ethos developed by Socialisme ou Barbarie and the presupposition of the link between Stalinism and State capitalism are parts of a discursive innovation. This dialectical logic between a discursive determination and a power of innovation has to be studied from a materialist point of view. Thus the dialectical movement between a discursive creation – for example the militant activism of Socialisme ou Barbarie – and a discourse’s instituted state – for example the Marxist dogmatism – must be understood on the basis of different materialist notions. Also the notion of “group praxis” allows to overpass this movement between determination and innovation. Consequently the possibility arises to think the rhetorical particularities and the critical process of intellectual reviews. [less ▲]

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See detailClinical classification criteria for radicular pain caused by lumbar disc herniation: the radicular pain caused by disc herniation (RAPIDH) criteria
Genevay, Stéphane; Courvoisier, Delphine; Konstantinou, Kika et al

in Spine Journal (2017), 17(10), 1464-1471

BACKGROUND CONTEXT: Classification criteria are recommended for diseases that lack specific biomarkers to improve homogeneity in clinical research studies. Because imaging evidence of lumbar disc ... [more ▼]

BACKGROUND CONTEXT: Classification criteria are recommended for diseases that lack specific biomarkers to improve homogeneity in clinical research studies. Because imaging evidence of lumbar disc herniations (LDHs) may not be associated with symptoms, clinical classification criteria based on patient symptoms and physical examination findings are required. PURPOSE: This study aimed to produce clinical classification criteria to identify patients with radicular pain caused by LDH. STUDY DESIGN: The study design was a two-stage process. Phase 1 included a Delphi process and Phase 2 included a cohort study. PATIENT SAMPLE: The patient sample included outpatients recruited from spine clinics in five countries. OUTCOME MEASURES: The outcome measures were items from history and physical examination. MATERIALS AND METHODS: In Phase 1, 17 spine experts participated in a Delphi process to select symptoms and signs suggesting radicular pain caused by LDH. In Phase 2, 19 different clinical experts identified patients they confidently classified as presenting with (1) radicular pain caused by LDH, (2) neurogenic claudication (NC) caused by lumbar spinal stenosis, or (3) non-specific low back pain (NSLBP) with referred leg pain. Patients completed survey items and specialists documented examination signs. A score to predict radicular pain caused by LDH was developed based on the coefficients of the multivariate model. An unrestricted grant of less than US$15,000 was received from MSD: It was used to support the conception of the Delphi, data management, and statistical analysis. No fees were allocated to participating spine specialists. RESULTS: Phase 1 generated a final list of 74 potential symptoms and signs. In Phase 2, 209 patients with pain caused by LDH (89), NC (63), or NSLBP (57) were included. Items predicting radicular pain caused by LDH (p<.05) were monoradicular leg pain distribution, patient-reported unilateral leg pain, positive straight leg raise test <60° (or femoral stretch test), unilateral motor weakness, and asymmetric ankle reflex. The score had an AUC of 0.91. An easy-to-use weighted set of criteria with similar psychometric characteristics is proposed (specificity 90.4%, sensitivity 70.6%). CONCLUSIONS: Classification criteria for identifying patients with radicular pain caused by LDH are proposed. Their use could improve the homogeneity of patients enrolled in clinical research studies. [less ▲]

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