Adherence to protocol registration of systematic reviews published in high-impact-factor journals: meta-epidemiological study

UMIN ID: UMIN000018189

Registered date:07/07/2015

Basic Information

• Recruitment status: Complete: follow-up complete
• Health condition(s) or Problem(s) studied: [Criteria for considering studies for this review] We will include any systematic reviews or meta-analysis for interventions. Studies will be excluded if the reviews are for diagnostic test accuracy, non-randomized studies or meta-epidemiology. Eligibility will be assessed by two authors (H.T and Y.T.) independently. Differences regarding eligibility will be resolved by consensus and with the help of the senior author (Y.K.). [Data collection and analysis] [Selection of studies] We will start with the review of titles of the articles identified in the initial research and proceed to review of abstracts, whose titles might be of relevance, and finally identify eligible studies on the basis of their full text.
• Date of first enrollment: 2015/07/07
• Target sample size: 1
• Countries of recruitment: Japan
• Study type: Others,meta-analysis etc

Outcome(s)

• Primary Outcome: [Primary Outcome] Adherence to protocol registration
• Secondary Outcome: [Secondary Outcome] 1. Number of systematic reviews that refer directly to PRISMA statement 2. Adherence to protocol registration among systematic reviews that refer directly to the PRISMA statement 3. Publication bias in each registered and unregistered systematic reviews

Key inclusion & exclusion criteria

• Age minimum: Not applicable
• Age maximum: Not applicable
• Gender: Male and Female
• Exclude criteria: the Cochrane Database of Systematic Reviews

Related Information

• Primary Sponsor: Hyogo Prefectural Amagasaki General Medical Center
• Source(s) of Monetary Support: Hyogo Prefectural Amagasaki General Medical Center