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Sample Size Determination in Epidemiologic Studies present constraints on the maximum-number of subjects that might actually be included in a study, statistical considerations are extremely important. To address the statistical questions about appropriate sample size, the researcher must first specify the study design, the nature of the outcome varextrovert 发表于 2025-3-31 03:36:52
General Principles of Data Analysis: Continuous Covariables in Epidemiological Studiesin Chaps. I.3, I.5 to I.7 and II.4. Other features are generally relevant, see Chaps. I.2 and I.9. This chapter deals with one of these, namely the analysis of continuous covariables. After a short introduction in which relevant measures used for continuous covariables are listed, we present classicParadox 发表于 2025-3-31 08:13:21
Regression Methods for Epidemiologic Analysisnly a few variables at a time. They are, however, limited in the number of variables that they can examine simultaneously. Even sparse-strata methods (such as Mantel-Haenszel) require that some strata have two or more subjects; yet, as more and more variables or categories are added to a stratificat推崇 发表于 2025-3-31 09:57:02
https://doi.org/10.1007/978-3-642-51568-2ion of illness. These contributing disciplines stem from three major scientific areas, first from basic biomedical sciences such as biology, physiology, biochemistry, molecular genetics, and pathology, second from clinical sciences such as oncology, gynecology, orthopedics, obstetrics, cardiology, iAnalogy 发表于 2025-3-31 15:47:45
https://doi.org/10.1007/978-3-663-07517-2 causes. This chapter deals with the conceptual building blocks of epidemiology. First we offer a model for causation, from which a variety of insights relevant to epidemiologic understanding emerge. We then discuss the basis by which we attempt to infer that an identified factor is indeed a cause o