Systematic Reviews Unit, Jagiellonian University Medical College, Krakow, Poland.
Department of Hygiene and Dietetics, Jagiellonian University Medical College, Krakow, Poland.
Obes Rev. 2020 May;21(5):e12994. doi: 10.1111/obr.12994. Epub 2020 Jan 29.
High-quality systematic reviews (SR) and meta-analyses (MA) are considered to be reliable sources of information. This study aims to assess the quality of studies published as SR or MA in the field of bariatrics in 2016 and 2017. We identified SR and MA in the field of bariatrics by searching electronic databases (MEDLINE, Embase, and Cochrane Database of Systematic Reviews). Eligible studies were those identified as SR/MA in the title/abstract, which aimed to assess any outcome in patients with morbid obesity undergoing or scheduled to undergo bariatric surgery. Two authors independently reviewed all titles and abstracts, assessed full texts of potentially eligible studies, and assessed the quality of included studies. Any discrepancies were resolved by the third reviewer. We evaluated the quality and risk of bias of each SR/MA using AMSTAR 2 checklist and ROBIS tool, respectively. Seventy-eight of 4236 references met inclusion criteria and were assessed for their quality/risk of bias. The methodological quality of 99% of all papers was classified as "critically low." A total of 6% of the studies were at low risk of bias, and 78% were assessed as being at high risk of bias. The methodological quality of studies published in 2016 and 2017 as SR/MA is highly unsatisfactory.
高质量的系统评价（SR）和荟萃分析（MA）被认为是可靠的信息来源。本研究旨在评估 2016 年和 2017 年发表的肥胖症领域的 SR 和 MA 的研究质量。我们通过搜索电子数据库（MEDLINE、Embase 和 Cochrane 系统评价数据库）来确定肥胖症领域的 SR 和 MA。符合条件的研究是那些在标题/摘要中被确定为 SR/MA 的研究，这些研究旨在评估接受或计划接受减重手术的病态肥胖患者的任何结果。两名作者独立审查了所有标题和摘要，评估了潜在合格研究的全文，并评估了纳入研究的质量。任何分歧均由第三位审稿人解决。我们使用 AMSTAR 2 清单和 ROBIS 工具分别评估每个 SR/MA 的质量和偏倚风险。在 4236 篇参考文献中，有 78 篇符合纳入标准，并对其质量/偏倚风险进行了评估。所有论文的方法学质量有 99%被归类为“极低”。共有 6%的研究被认为偏倚风险低，78%的研究被评估为高偏倚风险。2016 年和 2017 年发表的 SR/MA 的研究方法学质量非常令人不满意。
