What Researchers Did
Researchers conducted a two-phase study, first a scoping review of hyperbaric oxygen treatment (HBOT) randomized controlled trials (RCTs), followed by a statistical analysis to assess the added value of searching databases beyond MEDLINE.
What They Found
Out of 5,840 identified citations, 367 hyperbaric oxygen treatment (HBOT) randomized controlled trials were included for analysis. The Cochrane Central Register of Control Trials (CENTRAL) was the most sensitive at 87.2% and contributed the most unique references (7.1%), while MEDLINE showed the highest precision at 23.8% and an optimal 'number needed to read' of four. Overall, 14.2% of the included references were unique to a single database.
What This Means for Canadian Patients
For Canadian patients, this study highlights the importance of comprehensive literature searches that may extend beyond MEDLINE to ensure all relevant evidence on treatments like hyperbaric oxygen therapy is identified. This thorough approach helps healthcare providers and researchers make more informed decisions, potentially leading to better and more evidence-based care.
Canadian Relevance
This study has Canadian relevance as it involves Canadian authors and contributes to the methodology of systematic reviews, which are foundational for evidence-based healthcare practices in Canada. The findings inform how Canadian researchers and clinicians can best identify comprehensive evidence for treatments.
Study Limitations
A limitation of this study is that its findings on database efficacy are specific to hyperbaric oxygen treatment randomized controlled trials and may not be generalizable to all medical fields.