background preloader

BioStatistiques Epidémiologie

Facebook Twitter

Causal Inference in Epidemiology: Recent Methodological Developments. Most courses on statistical modelling in epidemiology concentrate on the use of regression models to estimate causal effects while adjusting for measured confounders. These address uncertainty due to sampling error but not, in general, other sources of error and uncertainty which may arise from missing data, measurement error, uncontrolled confounding, and/or selection bias. Recent methodological advances make it feasible to incorporate at least some of these sources of error into statistical models so that quantitative assessments can be made of their impact on estimates of causal effect and the uncertainty around those estimates.

The proposed course will discuss the current state of the art with respect to these issues, while retaining a practical focus. Participants will acquire awareness of the common threads across these new methods and competence in applying them in simple settings. There will be no formal assessment. Participants will receive a Certificate of Attendance. SFdS | Société Française de Statistique. Présentation. Objectifs Faciliter les rencontres, réflexions et échanges entre statisticiens et utilisateurs de la statistique dans le secteur de la santé et du médicament. Organiser des journées, formations, congrès et groupes de travail.

Assurer également la promotion du métier de statisticien, être un lien entre professionnels français et européens et auprès des autorités. L'adhésion est ouverte à tous et particulièrement aux statisticiens membre de la SFdS travaillant dans le domaine de la Santé et du Médicament : Industrie, Recherche Publique, Universités, Sociétés de Service… Voir les actualités du groupe... Bureau Président : Gérard DERZKO (Université Pierre et Marie Curie, Paris 6, LSTA) Vice-Président : François AUBIN (Cardinal Systems)Vice-Président : Emmanuel PHAM (IPSEN) Secrétaire : François MERCIER (Pharsight) Trésorier : Nicolas MOLINARI (Université Montpellier 1, CHU de Montpellier) Autres membres du bureau Ahmadou ALIOUM (Université de Bordeaux 2, ISPED) Contact Relations extérieures. Statistique et Société. La revue Statistique et Société est une publication électronique en libre accès. Elle concerne quiconque s’intéresse à l’usage de la statistique dans la Société.Elle s’ouvre aux questions d’actualité, aux usages des méthodes statistiques dans tous les domaines ainsi qu’auxdébats qu’ils suscitent.C’est une publication d’intérêt général pour les statisticiens, les utilisateurs de la statistique et tous ceux que la méthodologie statistique intéresse.

Soumettre un article ? Voir les directives aux auteurs. La revue Statistique et SociétéLa revue Statistique et Société est une publication électronique en libre accès. L'information d'ordre statistique irrigue la société contemporaine de part en part, et lui donne sa propre inflexion. La revue Statistique et Société, une revue de la Société Française de Statistique, se donne pour objectif de mettre en évidence les effets propres de ces quantités. Vol. 2, No 1 (2014) Hazard ratio. In survival analysis, the hazard ratio (HR) is the ratio of the hazard rates corresponding to the conditions described by two levels of an explanatory variable. For example, in a drug study, the treated population may die at twice the rate per unit time as the control population.

The hazard ratio would be 2, indicating higher hazard of death from the treatment. Or in another study, men receiving the same treatment may suffer a certain complication ten times more frequently per unit time than women, giving a hazard ratio of 10. Hazard ratios differ from relative risks in that the latter are cumulative over an entire study, using a defined endpoint, while the former represent instantaneous risk over the study time period, or some subset thereof. Hazard ratios suffer somewhat less from selection bias with respect to the endpoints chosen, and can indicate risks that happen before the endpoint.

Definition and derivation[edit] where N(t) is the number at risk at the beginning of an interval. . Science: Math: Statistics: Software. Multilevel Modelling Course. You will need to register or log in to view the course. You can select the button shown at the top of this page to log on. Please note some of these films require the Flash player plugin. If you experience problems accessing any videos, please email info-cmm@bristol.ac.uk. Modules (Back to top) Module 1 - Using quantitative data in research Using quantitative data in research - concepts - (sample PDF, 0.1 mb) Video introduction In Module 1 we look at quantitative research and how we collect data, in order to provide a firm foundation for the analyses covered in later modules. To give a broad overview of how research questions might be answered through quantitative analysis.

Module 2 - Introduction to quantitative data analysis Introduction to quantitative data analysis - concepts - (sample PDF, 0.1 mb) Video introduction Module 3 - Multiple regression Multiple regression is a technique used to study the relationship between an outcome variable and a set of explanatory or predictor variables. Stata support. Free Online Courses. Whether your goal is to earn a promotion, graduate at the top of your class, or just accelerate your life, lectures can help get you there.

Our archives of lectures cover a huge range of topics and have all been handpicked and carefully designed by experienced instructors throughout the world who are dedicated to helping you take the next step toward meeting your career goals. Lifelong learns can turn their free time turn into self-improvement time. The online lectures on this list are more than lecture notes or a slideshow on a topic -- they were designed for audiences like you, with carefully sequenced themes and topics taught by veteran educators, and often with additional resources for your own independent study. The lectures are available to anybody, completely free of charge. Lecture courses are a valid and vital learning tool, and may be one of the best methods of learning available.