References of "Bruyère, Olivier"
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See detailEpidémiologie de la lithiase urinaire sur base d'une analyse morpho-constitutionnelle
Castiglione, Vincent ULg; JOURET, François ULg; Bruyère, Olivier ULg et al

in Néphrologie & Thérapeutique (2015), 11

Urolithiasis is a common condition, with a prevalence of 10% and a male/female ratio above 1 according to large national series. Various types of urinary stones have been described upon their mineral ... [more ▼]

Urolithiasis is a common condition, with a prevalence of 10% and a male/female ratio above 1 according to large national series. Various types of urinary stones have been described upon their mineral content and/or their morphology. Hence, a combined morpho-constitutional (M-C) classification has been proposed. In order to detail the prevalence of urolithiasis in general and of each M-C type in particular upon age and gender in Belgium, we retrospectively studied the database of a reference center for urolithiasis analysis. Between 2010 and 2013, 2195 stones were characterized. We excluded 45 nonbiological stones and 281 stones, which originated from outside the study zone. Among 1869 stones,1293 (69.2%) affected men. Prevalence peak of urolithiasis was observed between 50–60 years of age in both genders. The M-C analysis was available for 1854 stones (99.2%): multiple morphological types were concomitantly identified in 49.3%. In the whole population, the main mineral constituent was whewellite (54.4%), mainly organized as type Ia (94%). Weddellite was found in 19.8%, with an equal distribution between types IIa and IIb. Uric acid was the 3rd most frequent constituent in man, with a similar distribution between IIIa and IIIb. Phosphate was uncommon in man (8.2%), but frequent in woman (26.6%) with a type IVa1 organization. Prevalence of M-C types changes with aging, i.e. decrease of weddellite and increase of whewellite and uric acid in both genders. This retrospective analysis of a single-center database of urinary stones helps characterize the M-C epidemiology of urolithiasis in Belgium. [less ▲]

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See detailMirabel: An integrated project for risk and cost/benefit analysis of peanut allergy
Crépet, A.; Papadopoulos, A.; Elegbede, C.F. et al

in Regulatory Toxicology & Pharmacology [=RTP] (2015), 71

Food allergy is a major public health issue. However, no regulatory measures exist when allergens are present at trace levels and the different risk components are poorly described. Thus, knowledge on ... [more ▼]

Food allergy is a major public health issue. However, no regulatory measures exist when allergens are present at trace levels and the different risk components are poorly described. Thus, knowledge on exposure components such as the allergens present in foods and the consumption behaviour of allergic consumers and models to estimate the related risk need to be enriched. Mirabel proposes for the first time studying each risk component using an integrated approach in order to improve the quality of life of the allergic population. Field surveys were conducted in order to fill in the current gaps in unintentional allergen traces in food, allergic consumers’ food behaviour, threshold doses of allergic reaction, allergy symptoms and severity. The aim is also to propose methodological and operational tools to quantify allergic risk, to test management scenarios and to produce a cost/benefit analysis. Medical data on the peanut allergies of 785 patients were collected in the MIRABEL survey and 443 patients answered the food consumption questionnaire. The population surveyed was mostly paediatric – 86% were children under 16 years of age, with a high percentage of males (60%). This project will generate tangible results on peanut allergen exposure and risk which could be used in future risk assessment work and particularly to provide science-based guidance to set up concentration limits for peanut traces on packages. [less ▲]

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See detailStatistiques : quand un biais - le biais de confusion - donne une illusion de causalité ... (partie 2)
Bruyère, Olivier ULg

in Onco Hemato (2015), 9(7), 96-97

Nous l’avons vu dans le numéro précédent, dans une étude, un biais est un facteur, une situation, un processus qui va conduire à un résultat non conforme à la réalité. Il s’agit d’une erreur systématique ... [more ▼]

Nous l’avons vu dans le numéro précédent, dans une étude, un biais est un facteur, une situation, un processus qui va conduire à un résultat non conforme à la réalité. Il s’agit d’une erreur systématique. Après s’être intéressé aux biais de sélection et aux biais d’information, nous allons présenter la 3e grande famille de biais: les biais de confusion, que l’on pourrait définir comme des démarches, des facteurs, des situations ou des processus conduisant à des interprétations erronées de la relation entre l’exposition à un facteur et l’événement étudié. [less ▲]

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See detailStatistiques : où il est question de se faire une idée juste de la réalité ... (partie 1)
Bruyère, Olivier ULg

in Onco Hemato (2015), 9(6), 30-32

Dans une étude, un biais est un facteur, une situation, un processus qui va conduire à un résultat non conforme à la réalité. Le biais est une erreur systématique. Aussi, contrairement aux erreurs ... [more ▼]

Dans une étude, un biais est un facteur, une situation, un processus qui va conduire à un résultat non conforme à la réalité. Le biais est une erreur systématique. Aussi, contrairement aux erreurs aléatoires, elle ne se compense pas en moyenne. Comme il est impossible de savoir a posteriori si un résultat est biaisé ou pas, des principes méthodologiques doivent être mis en oeuvre a priori afin de minimiser l'influence des biais. Lors de la lecture des résultats d'une étude, la question posée est donc "est-ce que la méthodologie utilisée empêche les biais ?" ou "quel sont les biais potentiels résiduels ?" Voilà pourquoi il est prudent de parcourir les notes méthodologiques des publications, même si ce n'est certainement pas la partie la plus excitante à lire ... [less ▲]

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See detailStatistiques: évaluer la force de l'association
Bruyère, Olivier ULg; Boutron-Ruault, Marie-Christine

in Onco Hemato (2015), 9(5), 14-16

Les notions de risque relatif et/ou d’odds ratio se retrouvent dans l’immense majorité des articles de la littérature. Il faut dire qu’elles répondent aux besoins fondamentaux de vérifier l’existence ... [more ▼]

Les notions de risque relatif et/ou d’odds ratio se retrouvent dans l’immense majorité des articles de la littérature. Il faut dire qu’elles répondent aux besoins fondamentaux de vérifier l’existence d’une relation entre un facteur d’exposition et un événement de santé et de la quantifier. C’est ici si vous voulez en savoir plus! [less ▲]

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See detailQuels types d'étude pour quels objectifs ?
Bruyère, Olivier ULg; Reginster, Jean-Yves ULg

in Onco Hemato (2015), 9(1), 34-36

Fondamentalement, les études servent à répondre à des questions que l’on se pose. Or la question posée détermine grandement le type d’étude qui sera mise en oeuvre, qui lui-même décidera des analyses ... [more ▼]

Fondamentalement, les études servent à répondre à des questions que l’on se pose. Or la question posée détermine grandement le type d’étude qui sera mise en oeuvre, qui lui-même décidera des analyses statistiques ultérieures. Petite revue des différents types d’étude. [less ▲]

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See detailStatistiques : il n'est jamais trop tard pour apprendre à (bien) lire ...
Bruyère, Olivier ULg

in Gunaïkeia (2015), 20(2), 15-16

La lecture critique d’un compte rendu d’essai thérapeutique vise à évaluer la fiabilité et la pertinence des résultats avant leur éventuelle exploitation. In fine, pour un clinicien, la question est de ... [more ▼]

La lecture critique d’un compte rendu d’essai thérapeutique vise à évaluer la fiabilité et la pertinence des résultats avant leur éventuelle exploitation. In fine, pour un clinicien, la question est de savoir si les résultats présentés justifient un changement de sa pratique. Cette lecture critique nécessite toutefois la compréhension d’un certain nombre de notions, ayant notamment trait aux statistiques et à la méthodologie, qui peuvent paraître d’un premier abord abscons, mais qui sont en réalité accessibles. C’est du moins ce que nous allons tenter de vous démontrer. [less ▲]

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See detailValidation of an extended French version of ID MigraineTM as a migraine-screening tool
Streel, Sylvie ULg; Donneau, Anne-Françoise ULg; Dardenne, Nadia ULg et al

in Cephalalgia : An International Journal of Headache (2015), 35(5), 437-442

Introduction: Migraine has a considerable social, economic, physical and emotional burden but remains underdiagnosed and undertreated. A specific migraine screening tool could help remove barriers to ... [more ▼]

Introduction: Migraine has a considerable social, economic, physical and emotional burden but remains underdiagnosed and undertreated. A specific migraine screening tool could help remove barriers to health care and be an attractive instrument for epidemiological studies. The objective of this work was to assess the validity of an extended French version of ID MigraineTM as a migraine-screening tool. Methods: Sixty-seven subjects from the NESCaV study (2010–2012) completed the migraine screen and were diagnosed by a neurologist specializing in headache medicine using the International Classification of Headache Disorders, 2nd edition criteria (gold standard). Agreement between the two diagnoses was evaluated by Cohen kappa coefficient (k). Sensitivity, specificity and predictive values of the migraine screen were calculated. Results: Migraine was diagnosed in 21 (31.3%) of the 67 subjects according to the screening tool and in 24 (35.8%) by the neurologist (k¼0.90). The prevalence of migraine was unrelated to age, gender, education and perception of financial resources. Sensitivity and specificity of the screen were 87.5% and 100%, respectively. The screen prevalence of migraine with aura was 10.4% (sensitivity and specificity: 83.3% and 96.7%, respectively). Conclusion: The extended French version of ID MigraineTM (ef-ID Migraine) is a validated tool to screen migraine in French-speaking countries. [less ▲]

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See detailClinical Trials Using Mobile Health Applications
Lo Presti, Melissa; Abraham, Mickey; Appelboom, Geoff et al

in Pharmaceutical Medicine (2015), 29(1), 17-25

Background Mobile health (mHealth) is a growing sector of technology used in clinical practice. With the ubiquity of this technology in today’s society, the promise it holds for use in medicine is vast ... [more ▼]

Background Mobile health (mHealth) is a growing sector of technology used in clinical practice. With the ubiquity of this technology in today’s society, the promise it holds for use in medicine is vast. Purpose To conduct a study examining the current research and clinical trials involving mHealth applications used by human participants worldwide. Design Wesearched the ClinicalTrials.gov database for all original trials examining the role of mHealth applications and their use internationally and in varying clinical settings. Results Fifty trials were included. Eighty-eight percent of included trials were initiated from 2012 to 2014, with only 20 % of all included trials currently completed. The overwhelming majority of trials originated from the USA and other Western or European countries. There was a broad distribution of the trials with regard to study focus and purpose, involving applications in behaviour change, treatment adherence, diagnosis, disease management and patient-reported outcomes. Most included trials were performed in the setting of chronic diseases. Conclusion Use of mHealth applications is a growing field with broad implications and indications in clinical practice. This trend of increasing trials, studies and pervasiveness of technology in health care is a more recent development. Evidence in support of this technology is unclear from the trials included in this study; however, mHealth applications, devices and technology most assuredly have a role in chronic disease management and work to improve patient engagement. [less ▲]

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See detailPhysical abilities of elderly nursing home residents: The SENIOR cohort
Buckinx, Fanny ULg; Reginster, Jean-Yves ULg; CROISIER, Jean-Louis ULg et al

in The Journal of Nursing Home Research Sciences (2015), 1

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See detailEnergy and nutrient contents of food served and consumed by nursing home residents
Buckinx, Fanny ULg; PAQUOT, Nicolas ULg; ALLEPAERTS, Sophie ULg et al

in The Journal of Nursing Home Research Sciences (2015), 1

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See detailRelationship between isometric strength of six lower limb muscle groups and motor skills among nursing home residents
Buckinx, Fanny ULg; Croisier, Jean-Louis ULg; Reginster, Jean-Yves ULg et al

in Journal of Frailty & Aging (2015), 4(4), 184-7

Abstract: This research aimed to assess the correlation between isometric muscle strength of the lower limb and motor skills. This is a cross sectional study performed among volunteer nursing home ... [more ▼]

Abstract: This research aimed to assess the correlation between isometric muscle strength of the lower limb and motor skills. This is a cross sectional study performed among volunteer nursing home residents included in the SENIOR (Sample of Elderly Nursing home Individuals: an Observational Research) cohort. The present analysis focused on isometric muscle strength of 6 lower limb muscle groups (i.e. knee extensors, knee flexors, hip abductors, hip extensors, ankle flexors and ankle extensors), assessed using a validated hand-held dynamometer (i.e. the MicroFET2 device), and motor skills evaluated using the Tinetti test, the Timed Up and Go test, the Short Physical Performance Battery test (SPPB) and the walking speed. The relationship between all these parameters was tested by means of a multiple correlation, adjusted on age, sex and body mass index. 450 nursing home residents (69.8% of women) with a mean age of 83.1±9.4 years were included in this study. Our results showed a significant inverse correlation between lower limb muscle strength and the time required to perform the TUG test or gait speed, except for ankle flexors and ankle extensors. The relationship between the Tinetti test or the SPPB score, and lower limb muscle strength was significant, except for ankle flexors and ankle extensors. In conclusion, a positive association between lower limb muscle strength of the four main muscle groups and motor skills of the elderly nursing residents was found in this research. Therefore, special attention should be given to these muscle groups during rehabilitation programs. [less ▲]

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See detailTraduction française du Neurophysiology of Pain Questionnaire
Osinski, Thomas; Barde-Cabusson; Brasseur, Pauline et al

Conference (2015)

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See detailAssessment and determinants of aesthetic discomfort in hand osteoarthritis
Neuprez, Audrey ULg; Bruyère, Olivier ULg; Dardenne, Nadia ULg et al

in Annals of the Rheumatic Diseases (2015), 74

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See detailEstimation of sarcopenia prevalence using various assessment tools
Beaudart, Charlotte ULg; Reginster, Jean-Yves ULg; Slomian, Justine ULg et al

in Experimental Gerontology (2015), 61

BACKGROUND: Sarcopenia is defined as a progressive and generalized loss of muscle mass with either a loss of muscle strength or a loss of physical performance but there is no recommendation regarding the ... [more ▼]

BACKGROUND: Sarcopenia is defined as a progressive and generalized loss of muscle mass with either a loss of muscle strength or a loss of physical performance but there is no recommendation regarding the diagnostic tools that have to be used. In this study, we compared the prevalence of sarcopenia assessed using different diagnostic tools. METHODS: To measure muscle mass, muscle strength and physical performance, we used for each outcome two different diagnostic tools. For muscle mass, we used Dual Energy X-Ray Absorptiometry (DXA) and bio-electrical impedance analysis (BIA); for muscle strength, we used a hydraulic dynamometer and a pneumatic dynamometer; for physical performance we used the Short Physical Performance Battery test (SPPB test) and the walk speed. Eight diagnostic groups were hereby established. RESULTS: A total of 250 consecutive subjects were recruited in an outpatient clinic in Liège, Belgium. Estimated prevalence of sarcopenia varied from 8.4% to 27.6% depending on the method of diagnosis used. Regarding muscle mass, BIA systematically overestimated muscle mass compared to DXA (mean estimated prevalence with BIA=12.8%; mean prevalence with DXA=21%). For muscle strength, the pneumatic dynamometer diagnosed twice more sarcopenic subjects than the hydraulic dynamometer (mean estimated prevalence with PD=22.4%; mean estimated prevalence with HD=11.4%). Finally, no difference in prevalence was observed when the walking speed or the SPPB test was used. A weak overall kappa coefficient was observed (0.53), suggesting that the 8 methods of diagnosis are moderately concordant. CONCLUSION: Within the same definition of sarcopenia, prevalence of sarcopenia is highly dependent on the diagnostic tools used. [less ▲]

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See detailCost-effectiveness of vitamin D and calcium supplementation in the treatment of elderly women and men with osteoporosis.
Hiligsmann, Mickaël ULg; Ben Sedrine, Wafa; Bruyère, Olivier ULg et al

in European journal of public health (2015), 25(1), 20-25

BACKGROUND: The supplementation with vitamin D and calcium has been recommended for elderly, specifically those with increased risk of fractures older than 65 years. This study aims to assess the cost ... [more ▼]

BACKGROUND: The supplementation with vitamin D and calcium has been recommended for elderly, specifically those with increased risk of fractures older than 65 years. This study aims to assess the cost-effectiveness of vitamin D and calcium supplementation in elderly women and men with osteoporosis and therefore to assess if this recommendation is justified in terms of cost-effectiveness. METHODS: A validated model for economic evaluations in osteoporosis was used to estimate the cost per quality-adjusted life-year (QALY) gained of vitamin D/calcium supplementation compared with no treatment. The model was populated with cost and epidemiological data from a Belgian health-care perspective. Analyses were conducted in women and men with a diagnosis of osteoporosis (i.e. bone mineral density T-score </=-2.5). A literature search was conducted to describe the efficacy of vitamin D and calcium in terms of fracture risk reduction. RESULTS: The cost per QALY gained of vitamin D/calcium supplementation was estimated at euro40 578 and euro23 477 in women and men aged 60 years, respectively. These values decreased to euro7912 and euro10 250 at the age of 70 years and vitamin D and calcium supplementation was cost-saving at the age of 80 years, meaning that treatment cost was less than the costs of treating osteoporotic fractures of the no-treatment group. CONCLUSION: This study suggests that vitamin D and calcium supplementation is cost-effective for women and men with osteoporosis aged over 60 years. From an economic perspective, vitamin D and calcium should therefore be administrated in these populations including those also taking other osteoporotic treatments. [less ▲]

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