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Unclear Insomnia Concept in Randomized Controlled Trials and Systematic Reviews: A Meta-Epidemiological Study
Masahiro Banno1,2,3, Yasushi Tsujimoto3,4,5, Kunihiro Kohmura1
1Department of Psychiatry, Seichiryo Hospital, Tsurumai 4-16-27, Showa-ku, Nagoya 466-0064, Japan.
International Journal of Environmental Research and Public Health
|October 14, 2022
Summary
Many research abstracts fail to clarify if they discuss insomnia disorder or insomnia symptoms. This lack of specificity hinders clear communication in scientific literature.
Area of Science:
- Sleep Medicine
- Medical Research Methodology
Background:
- The term "insomnia" is often used ambiguously, encompassing both insomnia disorder and insomnia symptoms.
- Poor reporting of insomnia concepts in scientific literature can lead to misinterpretation.
Purpose of the Study:
- To assess the proportion of randomized controlled trials (RCTs) and systematic reviews (SRs) that do not clearly distinguish between insomnia disorder and insomnia symptoms in their abstracts.
- To identify the extent of conceptual ambiguity regarding insomnia in published research.
Main Methods:
- Searched PubMed for RCTs and SRs published after 2010, including "insomnia" in methods or results sections of structured abstracts.
- Randomly sampled 100 RCTs and 100 SRs from eligible articles identified on March 10, 2022.
- Analyzed abstracts and full texts to determine clarity on insomnia concepts.
Main Results:
- A high percentage of abstracts lacked clarity: 88% for RCTs and 94% for SRs.
- Upon full-text review, conceptual unclearness persisted in 27% of RCTs and 57% of SRs.
- The ambiguity of the insomnia concept is prevalent in research abstracts.
Conclusions:
- Researchers should explicitly state "insomnia disorder" or "insomnia symptoms" in the methods and results sections of abstracts.
- Improving clarity in reporting insomnia concepts is crucial for accurate scientific communication.
- Standardizing the reporting of insomnia in research abstracts will enhance the quality of systematic reviews and RCTs.
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