2004
DOI: 10.1590/s0102-86502004000700002
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Abstract: Randomized controlled trials (RCTs) have been used in medical research to evaluate different interventions in health-care. It has been shown that human clinical trials that lack randomization (RND) or blinding (BLD) often overestimate the magnitude of treatment effects 1. There are concerns that the use of the term "randomized" conveys a form of legitimacy to surgical trials that may sometimes be inappropriate and some published surgical trials ignore basic aspects of the randomization process. In this area, t… Show more

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Cited by 7 publications
(4 citation statements)
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“…Recruitment difficulties in surgical trials are well recognised [25,26]. Surgical technology evolves rapidly, and perpetual technique modifications : data presented with median and interquartile range.…”
Section: Discussionmentioning
confidence: 99%
“…Recruitment difficulties in surgical trials are well recognised [25,26]. Surgical technology evolves rapidly, and perpetual technique modifications : data presented with median and interquartile range.…”
Section: Discussionmentioning
confidence: 99%
“…Most trials on surgical procedures are done on small samples because of the unavailability of many homogeneous cases, intra-operative variations, and the difficulty in obtaining patient consent for randomization for such trials. [ 29 ] A small sample has not impeded the progress of science in these disciplines.…”
Section: Small Nmentioning
confidence: 99%
“…Quando material sintético é o foco do estudo, as normas técnicas, descrição da substância com o qual é feito e a referência da empresa que o produz, são dados fundamentais que devem ser descritos. Para pacientes, os dados básicos a serem relatados são sexo, idade, período em que o estudo foi realizado, tipo de seleção (ao acaso, consecutivos, etc...), a procedência (hospital, clínica, etc...).A distribuição dos pacientes nos grupos de estudo deve ser randomizada, o que nem sempre é fácil em estudos cirúrgicos 3 . Deve-se ainda caracterizar a amostra com índice de massa corpórea (IMC) em estudos de contorno corporal e medidas antropométricas.…”
Section: Métodosunclassified