Quality Assessment of Randomized Controlled Trials Published in the Korean Journal of Urology Over the Past 20 Years
Korean Journal of Urology
;
: 642-646, 2011.
Artículo
en Inglés
| WPRIM
| ID: wpr-86489
ABSTRACT
PURPOSE:
Because low-quality trials may lead to erroneous conclusions, quality assessments are necessary. Thus, in this study, we scrutinized randomized controlled trials (RCTs) published in the Korean Journal of Urology (KJU) to assess their quantity and quality. MATERIALS ANDMETHODS:
Upon extracting RCTs from all articles published in the KJU from 1991 to 2010, assessments were made on the basis of the Jadad scale and the adequacy of allocation concealment. The selections and assessments were performed independently by two researchers, and adjustment of the differences was done by a third-party researcher. In addition, the factors that may affect quality were analyzed.RESULTS:
A total of 3,516 original articles were searched and 28 RCTs were extracted. In the 1990s, RCTs constituted only 0.27% of the total original articles, but in the 2000s, RCTs constituted 1.34%. The mean total Jadad score increased from 1.6 points in the 1990s to 1.65 points in the 2000s. However, the percentage of "good quality" trials also increased from 20% to 30.43%. As for adequate allocation concealment, one study was observed in the 2000s. The aspect most lacking was appropriate dropout and double-blinding. Studies with medical interventions or funded or examined by institutional review boards tended to receive higher quality assessments.CONCLUSIONS:
Although RCTs consistently increased in both quantity and quality, in future studies, researchers should continue to strive toward achieving adequate allocation concealment and appropriate double-blinding. In addition, researchers must become more interested in receiving external funding and undergoing examination by institutional review boards.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Pacientes Desistentes del Tratamiento
/
Urología
/
Distribución Aleatoria
/
Estudios Prospectivos
/
Comités de Ética en Investigación
/
Administración Financiera
/
Corea (Geográfico)
Tipo de estudio:
Ensayo Clínico Controlado
/
Estudio observacional
Límite:
Humanos
País/Región como asunto:
Asia
Idioma:
Inglés
Revista:
Korean Journal of Urology
Año:
2011
Tipo del documento:
Artículo
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