Benoît Dervaux

Bio: Benoît Dervaux is an academic researcher from Lille University of Science and Technology. The author has contributed to research in topics: Intensive care & Cost effectiveness. The author has an hindex of 28, co-authored 98 publications receiving 1877 citations. Previous affiliations of Benoît Dervaux include Lille Catholic University & Centre national de la recherche scientifique.

The French Connection: The First Large Population-Based Contact Survey in France Relevant for the Spread of Infectious Diseases

Abstract: BACKGROUND: Empirical social contact patterns are essential to understand the spread of infectious diseases To date, no such data existed for France Although infectious diseases are frequently seasonal, the temporal variation of contact patterns has not been documented hitherto METHODS: COMES-F is the first French large-scale population survey, carried out over 3 different periods (February-March, April, April-May) with some participants common to the first and the last period Participants described their contacts for 2 consecutive days, and reported separately on professional contacts when typically over 20 per day RESULTS: 2033 participants reported 38 881 contacts (weighted median [first quartile-third quartile]: 8[5-14] per day), and 54 378 contacts with supplementary professional contacts (9[5-17]) Contrary to age, gender, household size, holidays, weekend and occupation, period of the year had little influence on the number of contacts or the mixing patterns Contact patterns were highly assortative with age, irrespective of the location of the contact, and gender, with women having 8% more contacts than men Although most contacts occurred at home and at school, the inclusion of professional contacts modified the structure of the mixing patterns Holidays and weekends reduced dramatically the number of contacts, and as proxies for school closure, reduced R0 by 33% and 28%, respectively Thus, school closures could have an important impact on the spread of close contact infections in France CONCLUSIONS: Despite no clear evidence for temporal variation, trends suggest that more studies are needed Age and gender were found important determinants of the mixing patterns Gender differences in mixing patterns might help explain gender differences in the epidemiology of infectious diseases

Health Economics of Dengue: A Systematic Literature Review and Expert Panel's Assessment

Abstract: Dengue vaccines are currently in development and policymakers need appropriate economic studies to determine their potential financial and public health impact. We searched five databases (PubMed, EMBASE, LILAC, EconLit, and WHOLIS) to identify health economics studies of dengue. Forty-three manuscripts were identified that provided primary data: 32 report economic burden of dengue and nine are comparative economic analyses assessing various interventions. The remaining two were a willingness-to-pay study and a policymaker survey. An expert panel reviewed the existing dengue economic literature and recommended future research to fill information gaps. Although dengue is an important vector-borne disease, the economic literature is relatively sparse and results have often been conflicting because of use of inconsistent assumptions. Health economic research specific to dengue is urgently needed to ensure informed decision making on the various options for controlling and preventing this disease.

Prevalence of residual excessive sleepiness in CPAP-treated sleep apnoea patients: the French multicentre study.

Abstract: The percentage of compliant continuous positive airway pressure (CPAP)-treated apnoeic patients that continue to experience residual excessive sleepiness (RES) is unknown. RES was defined by an Epworth Sleepiness Scale (ESS) score of >or=11. In total, 502 patients from 37 French sleep centres using CPAP >3 h night(-1) attending their 1-yr follow-up visit were eligible. ESS and polysomnographic data as well as symptoms, quality of life, depression scores and objective CPAP compliance at 1 yr were collected. Overall, 60 patients remained sleepy on CPAP (ESS 14.3+/-2.5) leading to a prevalence rate of RES of 12.0% (95% confidence interval (CI) 9.1-14.8). After having excluded associated restless leg syndrome, major depressive disorder and narcolepsy as confounding causes, the final prevalence rate of RES was 6.0% (95% CI 3.9-8.01). Patients with RES were younger and more sleepy at diagnosis. The relative risk of having RES was 5.3 (95% CI 1.6-22.1), when ESS before treatment was >or=11. Scores of emotional and energy Nottingham Health Profile domains were two times worse in patients with RES. As 230,000 obstructive sleep apnoea patients are currently treated in France by continuous positive airway pressure, more than 13,800 of them might suffer from residual excessive sleepiness.

Aggregation of Directional Distance Functions and Industrial Efficiency

Abstract: Three main objectives are pursued in this paper. First, we intend to analyze the aggregation problem of directional distance functions from a constructive viewpoint. We provide necessary and sufficient conditions concerning the structural properties of the production technology and of the nature of groups of firms. Indeed, exact additive aggregation holds for a linear technology and for a direction solely defined in the output space. Second, since these conditions are somewhat restrictive, we are interested in providing a measure for the aggregation bias through the relationship between industrial and structural technical efficiency. Finally, we show that this aggregation bias is a lower bound for industrial allocative efficiency.

SAPS 3—From evaluation of the patient to evaluation of the intensive care unit. Part 2: Development of a prognostic model for hospital mortality at ICU admission

Abstract: Objective To develop a model to assess severity of illness and predict vital status at hospital discharge based on ICU admission data.

Evaluation of research in efficiency and productivity:a survey and analysis of the first 30 years of scholarly literature in DEA

Abstract: Since the original Data Envelopment Analysis (DEA) study by Charnes et al. [Measuring the efficiency of decision-making units. European Journal of Operational Research 1978;2(6):429–44], there has been rapid and continuous growth in the field. As a result, a considerable amount of published research has appeared, with a significant portion focused on DEA applications of efficiency and productivity in both public and private sector activities. While several bibliographic collections have been reported, a comprehensive listing and analysis of DEA research covering its first 30 years of history is not available. This paper thus presents an extensive, if not nearly complete, listing of DEA research covering theoretical developments as well as “real-world” applications from inception to the year 2007. A listing of the most utilized/relevant journals, a keyword analysis, and selected statistics are presented.

Help wanted? : providing and paying for long-term care

Abstract: Colombo, F., et al. (2011), Help Wanted?: Providing and Paying for Long-Term Care, OECD Health Policy Studies, OECD Publishing. http://dx.doi.org/10.1787/9789264097759-en This work is published on the OECD iLibrary, which gathers all OECD books, periodicals and statistical databases. Visit www.oecd-ilibrary.org, and do not hesitate to contact us for more information. Help Wanted? PROVIDING AND PAYING FOR LONG-TERM CARE