OBJECTIVE: To characterize the clinical research methods published in the Revista de Investigación Clínica for the past 20 years. DESIGN: Comparative study of methods used in the RIC articles published in 3-years periods representing three decades (1972-74, 1982-84, 1992-94). RESULTS: Out of 273 original papers, 218 (80%) were of clinical research. There was an increased percentage of longitudinal vs cross-sectional studies, with cohort and randomized clinical trials showing the largest increase. The total number of research manuscripts also increased. CONCLUSION: The clinical research methods of the papers in the RIC have shown an increased rate of designs with a higher scientific value.
|Number of pages||6|
|Journal||Revista de investigación clínica; organo del Hospital de Enfermedades de la Nutrición|
|State||Published - Jan 1 1997|
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