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[Choosing study design in urologic research]. 2003

Laura Barreales Tolosa, and Gloria Mato Chaín, and Alberto Mariano Lázaro, and Cristina Fernández Pérez, and Gil Rodríguez Caravaca, and José Fereres Castiel
Servicio de Medicina Preventiva, Planta 4o Norte, Hospital Clínico San Carlos, C/Martín Lagos s/n, 28040 Madrid, España.

The design of an epidemiological study includes the procedures, methods and techniques by which the researcher tries to obtain valid (avoiding systematic errors or bias) and precise (avoiding random errors) answers to the research question posed. This principal question aimed to be answered is the specific objective of the study, which guides the election of an adequate type of design. The objective of this article is to describe the classification criteria (finality, temporal sequence, directionality, and control of the assignation of different study factors) of the different types of epidemiological studies (experimental, almost-experimental, and observational) and the main advantages, disadvantages, utilities and objectives of each investigation design.

UI MeSH Term Description Entries
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D014570 Urologic Diseases Pathological processes of the URINARY TRACT in both males and females. Urinary Tract Diseases,Urological Diseases,Disease, Urinary Tract,Disease, Urologic,Disease, Urological,Diseases, Urinary Tract,Diseases, Urologic,Diseases, Urological,Urinary Tract Disease,Urologic Disease,Urological Disease
D014572 Urology A surgical specialty concerned with the study, diagnosis, and treatment of diseases of the urinary tract in both sexes, and the genital tract in the male. Common urological problems include urinary obstruction, URINARY INCONTINENCE, infections, and UROGENITAL NEOPLASMS.
D015340 Epidemiologic Research Design The form and structure of analytic studies in epidemiologic research. Design, Epidemiologic Research,Designs, Epidemiologic Research,Epidemiologic Research Designs,Epidemiological Research Design,Research Design, Epidemiologic,Research Designs, Epidemiologic,Design, Epidemiological Research,Designs, Epidemiological Research,Epidemiological Research Designs,Research Design, Epidemiological,Research Designs, Epidemiological
D035843 Biomedical Research Research that involves the application of the natural sciences, especially biology and physiology, to medicine. Medical Research,Experimental Medicine,Investigational Medicine,Investigative Medicine,Research, Biomedical,Research, Medical,Medicine, Experimental,Medicine, Investigational,Medicine, Investigative

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