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Methodological reporting quality of randomized controlled trials: A survey of seven core journals of orthopaedics from Mainland China over 5 years following the CONSORT statement - 26/10/16

Doi : 10.1016/j.otsr.2016.05.018 
J. Zhang a, X. Chen a, Q. Zhu b, J. Cui b, L. Cao a, J. Su a,
a Department of Orthopedics, Shanghai Changhai hospital, Changhai Street No. 163, Yangpu District, 200433 Shanghai, PR China 
b The Second Military Medical University, Xiangyin Street No. 800, Yangpu District, 200433 Shanghai, PR China 

Corresponding author. Department of Orthopedics, Changhai hospital affiliated to the Second Military Medical University, Changhai Street No. 163, Yangpu District, 200433 Shanghai, PR China. Tel.: +02131161696.

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Abstract

Background

In recent years, the number of randomized controlled trials (RCTs) in the field of orthopaedics is increasing in Mainland China. However, randomized controlled trials (RCTs) are inclined to bias if they lack methodological quality. Therefore, we performed a survey of RCT to assess: (1) What about the quality of RCTs in the field of orthopedics in Mainland China? (2) Whether there is difference between the core journals of the Chinese department of orthopedics and Orthopaedics Traumatology Surgery & Research (OTSR).

Material and methods

This research aimed to evaluate the methodological reporting quality according to the CONSORT statement of randomized controlled trials (RCTs) in seven key orthopaedic journals published in Mainland China over 5 years from 2010 to 2014. All of the articles were hand researched on Chongqing VIP database between 2010 and 2014. Studies were considered eligible if the words “random”, “randomly”, “randomization”, “randomized” were employed to describe the allocation way. Trials including animals, cadavers, trials published as abstracts and case report, trials dealing with subgroups analysis, or trials without the outcomes were excluded. In addition, eight articles selected from Orthopaedics Traumatology Surgery & Research (OTSR) between 2010 and 2014 were included in this study for comparison. The identified RCTs are analyzed using a modified version of the Consolidated Standards of Reporting Trials (CONSORT), including the sample size calculation, allocation sequence generation, allocation concealment, blinding and handling of dropouts.

Results

A total of 222 RCTs were identified in seven core orthopaedic journals. No trials reported adequate sample size calculation, 74 (33.4%) reported adequate allocation generation, 8 (3.7%) trials reported adequate allocation concealment, 18 (8.1%) trials reported adequate blinding and 16 (7.2%) trials reported handling of dropouts. In OTSR, 1 (12.5%) trial reported adequate sample size calculation, 4 (50.0%) reported adequate allocation generation, 1 (12.5%) trials reported adequate allocation concealment, 2 (25.0%) trials reported adequate blinding and 5 (62.5%) trials reported handling of dropouts. There were statistical differences as for sample size calculation and handling of dropouts between papers from Mainland China and OTSR (P<0.05).

Conclusion

The findings of this study show that the methodological reporting quality of RCTs in seven core orthopaedic journals from the Mainland China is far from satisfaction and it needs to further improve to keep up with the standards of the CONSORT statement.

Level of evidence

Level III case control.

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Keywords : Randomized control trials, Methodological quality, Consolidated standards of reporting trials, Evidence-based medicine

Abbreviations : RCT, CONSORT, EBM


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© 2016  Elsevier Masson SAS. Tous droits réservés.
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Vol 102 - N° 7

P. 933-938 - novembre 2016 Retour au numéro
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