2008
DOI: 10.1590/s0102-36162008000600001
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A importância da qualidade dos estudos para a busca da melhor evidência

Abstract: A importância da qualidade dos estudos para a busca da melhor evidência *

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Cited by 16 publications
(15 citation statements)
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“…When there are losses of contact with some participants, the researchers cannot complete the collection of data as planned. 24 Studies can be affected by clearances, withdrawals and losses of participants, which could void the initial equivalence of the experimental and control groups. To manage these deviations, two strategies are commonly used: the principle of analysis by intention to treat (ITT) states that any person must be parsed as if he'd followed completely the project programmed; and protocol analysis (per-protocol = PP) that proposes to include only those volunteers who joined the designated intervention and concluded the following default, without any deviation of the main protocol.…”
Section: Discussionmentioning
confidence: 99%
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“…When there are losses of contact with some participants, the researchers cannot complete the collection of data as planned. 24 Studies can be affected by clearances, withdrawals and losses of participants, which could void the initial equivalence of the experimental and control groups. To manage these deviations, two strategies are commonly used: the principle of analysis by intention to treat (ITT) states that any person must be parsed as if he'd followed completely the project programmed; and protocol analysis (per-protocol = PP) that proposes to include only those volunteers who joined the designated intervention and concluded the following default, without any deviation of the main protocol.…”
Section: Discussionmentioning
confidence: 99%
“…This technique prevents the researchers, unconsciously or not, to determine in advance which participants will be allocated to a certain group. 24 Clinical trials in which the sequence of allocation was improperly hidden can produce larger estimates of treatment effects than the tests in which the authors report adequate concealment. The conduct for the generation of sequence has a smaller role in preventing bias than the conduct for concealment.…”
Section: Discussionmentioning
confidence: 99%
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“…Esta constatação vem de encontro aos esforços advindos de iniciativas internacionais e nacionais (1,2,4,10,44,45) . Outro fator que chama atenção é a equivalência, pelo menos ao que diz respeito A comparação da qualidade metodológica dos trabalhos, de acordo com os escores de JADAD e da Colaboração Cochrane, não demonstrou diferenças estatísticas quando agrupados por periódico de publicação (Tabelas 2 e 3).…”
Section: Discussionunclassified
“…A avaliação crítica da literatura ortopédica tem se tornado uma ferramenta necessária para aqueles que buscam o conhecimento atualizado (1)(2)(3) . Neste contexto, a aquisição de informações com uma sistemática baseada em evidências e a consequente categorização em níveis de evidência (4) torna-se obrigatória, haja vista o grande número de publicações e frequentes armadilhas metodológicas, que podem conduzir o leitor a conclusões falhas e potencialmente perigosas para prática médica (5)(6)(7)(8) .…”
Section: Introductionunclassified