Mots-clés
BDSP5 Thésaurus > Méthode épidémiologique > Biais
Biais
Commentaire :
Différence systématique entre la valeur réelle d'un phénomène épidémiologique et son estimation fournie par une enquête.
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Documents disponibles dans cette catégorie (508)
Article
Article
[BDSP. Notice produite par CREDES hR0xu8xA. Diffusion soumise à autorisation]. Tout le monde s'accorde pour dire que les soins prénataux sont globalement bénéfiques, mais les mécanismes de cette relation et les résultats des analyses coût-effica[...]Article
Approximate standard errors and confidence intervals for indices of positive and negative agreement.
P. GRAHAM ; B. BULL ; Department of Public Health and General Practice. Christchurch School of Medicine. Christchurch. NZL |[BDSP. Notice produite par INIST hJEuR0xB. Diffusion soumise à autorisation]. Indices of positive and negative agreement for observer reliability studies, in which neither observer can be regarded as the standard, have been proposed. In this art[...]Article
D.M. STIEB ; R.C. BEVERIDGE ; S. JUDEK ; B.H. ROWE ; S.D. WALTER ; Air Quality Health Effects Research Section. Health Canada. Ottawa. ON. CAN |[BDSP. Notice produite par INIST 17yKR0xv. Diffusion soumise à autorisation]. Seven independent assessments of diagnosis were obtained for 92 records of nontrauma emergency department visits in Saint John, New Brunswick, Canada, in 1994. The hos[...]Article
R.W. HALEY ; E. BARETT-CONNOR ; W. BERG ; T. BULLMAN ; D.N. COWAN ; R.F. DEFRAITES ; G.C. GRAY ; H.K. KANG ; J.D. KNOKE ; F.S. WIGNALL ; Environmental Epidemiology Service. Department of Veterans Affairs. Washington DC. USA |[BDSP. Notice produite par INIST LrrR0xeq. Diffusion soumise à autorisation].Article
[BDSP. Notice produite par INIST Wa1IyR0x. Diffusion soumise à autorisation]. Imperfect reference standards (alloyed standards) often hinder evaluation of new diagnostic tests. Discrepant analysis, a two-stage modification of the standard evalua[...]Article
M.E. JONES ; A.J. SWERDLOW ; Epidemiological Monitoring Unit. Department of Epidemiology and Population Health. London School of Hygiene and Tropical Medicine. University of London. London. GBR |[BDSP. Notice produite par INIST zGU8R0xu. Diffusion soumise à autorisation]. Cohort studies often compare the observed number of cases arising in a group under investigation with the number expected to occur on the basis of general population r[...]Article
[BDSP. Notice produite par INIST J45R0xFZ. Diffusion soumise à autorisation]. This study examines the potential coverage bias in telephone surveys. Data were analyzed from the first phase of the third National Health and Nutrition and Examinatio[...]Article
J.F. ETTER ; T.V. PERNEGER ; A. RONCHI ; Institute of Social and Preventive Medicine. University of Geneva. Geneva. CHE |[BDSP. Notice produite par INIST 8EYpcR0x. Diffusion soumise à autorisation]. Collecting saliva samples by mail can serve numerous purposes in epidemiologic research. The objectives of this study were to assess what proportion of participants in[...]Article
[BDSP. Notice produite par INIST R0xJMhFJ. Diffusion soumise à autorisation]. Objectives. This paper described 2 statistical methods designed to correct for bias from exposure measurement error in point and interval estimates of relative risk. M[...]Article
W. DIFRANCEISCO ; J.A. KELLY ; D.A. MURPHY ; K.J. SIKKEMA ; A.M. SOMLAI ; L.Y. STEVENSON ; Center for Aids Intervention Research. Department of Psychiatry and Behavioral Medicine. Medical College of Wisconsin. Milwaukee. USA |[BDSP. Notice produite par INIST 3DJR0xD2. Diffusion soumise à autorisation]. Objectives. The purpose of this study was to identify factors predicting program attrition among participants in human immunodeficiency virus (HIV) risk reduction tria[...]Article
[BDSP. Notice produite par INIST FYR0x8Y8. Diffusion soumise à autorisation]. We review some of the literature on the effects of exposure misclassification on the statistical analysis of case-control studies. In particular, we focus on evidence [...]Article
[BDSP. Notice produite par INIST zHHR0x5R. Diffusion soumise à autorisation]. It has been stated that energy adjustment can control for recall bias in case-control studies. Simulation of recall bias and cases and controls in a nutritional survey[...]Article
J.C.M. WITTEMAN ; J.C. COBB ; R.B. D'AGOSTINO ; M.A.J. DE RIDDER ; A. HOFMAN ; W.B. KANNEL ; J.M. ROBINS ; T. STIJNEN ; Department of Epidemiology and Biostatistics. Erasmus University Medical School. Rotterdam. NLD ; Department of Mathematics. Boston University College of Liberal Arts. Boston MA. USA |[BDSP. Notice produite par INIST L4R0xGc9. Diffusion soumise à autorisation]. Time-dependent covariates are often both confounders and intermediate variables. In the presence of such covariates, standard approaches for adjustment for confounding[...]Article
A.J. WELLS ; P.B. ENGLISH ; E.J. PEREZ-STABLE ; S.F. POSNER ; L.E. WAGENKNECHT ; Medical Effectiveness Research Center for Diverse Populations. Division of General Internal Medicine. Department of Medicine. University of California. San Francisco. USA |[BDSP. Notice produite par INIST u3QiR0xR. Diffusion soumise à autorisation]. Objectives. This paper provides misclassification rates for current cigarette smokers who report themselves as nonsmokers. Such rates are important in determining smok[...]