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JAMA. 1998 Jul 15;280(3):247-9.

Adherence to published standards of reporting: a comparison of placebo-controlled trials published in English or German.

Author information

1
Department of Social and Preventive Medicine, University of Berne, Switzerland. junker@ispm.unibe.ch

Abstract

CONTEXT:

Although standards of reporting randomized controlled trials are well established internationally, essential study elements continue to be omitted, which hampers interpretation and systematic review of randomized controlled trials.

OBJECTIVE:

To identify deficiencies in the quality of reporting of placebo-controlled randomized trials published in German or English.

DESIGN:

Observational study comparing 32 German- and 89 English-language reports of placebo-controlled trials with parallel design, published by the same group of authors between 1985 and 1994.

MAIN OUTCOME MEASURE:

High reporting quality, defined as adherence to published standards and measured by an 18-item scale based on 2 standard guidelines.

RESULTS:

The mean quality score was 8.4 (SD, 3.0; range, 1-16) of 18. The difference of the mean quality scores between English-language reports compared with German-language reports was small (0.27; 95% confidence interval, -0.97 to 1.52). More articles reported clinical aspects than trial methods or statistics.

CONCLUSION:

There is room for improvement in the reporting of placebo-controlled randomized trials for both English and German reports.

PMID:
9676671
[Indexed for MEDLINE]

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