A descriptive analysis of child-relevant systematic reviews in the Cochrane Database of Systematic Reviews

被引:21
作者
Bow S. [1 ]
Klassen J. [1 ]
Chisholm A. [1 ]
Tjosvold L. [1 ,2 ]
Thomson D. [1 ,2 ]
Klassen T.P. [1 ,2 ,3 ]
Moher D. [4 ]
Hartling L. [1 ]
机构
[1] Alberta Research Centre for Health Evidence, Department of Pediatrics, University of Alberta, Edmonton, AB
[2] Cochrane Child Health Field, Department of Pediatrics, University of Alberta, Edmonton, AB
[3] Stollery Children's Hospital, Edmonton, AB
[4] Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa
基金
加拿大健康研究院;
关键词
Cystic Fibrosis; Publication Bias; Oral Health; Allocation Concealment; Cochrane Collaboration;
D O I
10.1186/1471-2431-10-34
中图分类号
学科分类号
摘要
Background: Systematic reviews (SRs) are considered an important tool for decision-making. There has been no recent comprehensive identification or description of child-relevant SRs. A description of existing child-relevant SRs would help to identify the extent of available child-relevant evidence available in SRs and gaps in the evidence base where SRs are required. The objective of this study was to describe child-relevant SRs from the Cochrane Database of Systematic Reviews (CDSR, Issue 2, 2009).Methods: SRs were assessed for relevance using pre-defined criteria. Data were extracted and entered into an electronic form. Univariate analyses were performed to describe the SRs overall and by topic area.Results: The search yielded 1666 SRs; 793 met the inclusion criteria. 38% of SRs were last assessed as up-to-date prior to 2007. Corresponding authors were most often from the UK (41%). Most SRs (59%) examined pharmacological interventions. 53% had at least one external source of funding. SRs included a median of 7 studies (IQR 3, 15) and 679 participants (IQR 179, 2833). Of all studies, 48% included only children, and 27% only adults. 94% of studies were published in peer-reviewed journals. Primary outcomes were specified in 72% of SRs. Allocation concealment and the Jadad scale were used in 97% and 25% of SRs, respectively. Adults and children were analyzed separately in 12% of SRs and as a subgroup analysis in 14%. Publication bias was assessed in only 14% of SRs. A meta-analysis was conducted in 68% of SRs with a median of 5 trials (IQR 3, 9) each. Variations in these characteristics were observed across topic areas.Conclusions: We described the methodological characteristics and rigour of child-relevant reviews in the CDSR. Many SRs are not up-to-date according to Cochrane criteria. Our study describes variation in conduct and reporting across SRs and reveals clinicians' ability to access child-specific data. © 2010 Bow et al; licensee BioMed Central Ltd.
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