Liggins Institute, The University of Auckland, Auckland, New Zealand.
Faculty of Medical and Health Sciences, The University of Auckland, Auckland, New Zealand.
Nutr Rev. 2021 Aug 9;79(9):988-1021. doi: 10.1093/nutrit/nuab005.
Dietary advice is the cornerstone of care for women with gestational diabetes mellitus (GDM) to improve maternal and infant health.
This study aimed to compare dietary recommendations made in clinical practice guidelines (CPGs) for the management of GDM, evaluate their evidence base, identify research gaps, and assess CPG quality. The PRISMA guidelines were used.
Six databases were searched for CPGs, published between 2000 and 2019, that included dietary advice for the management of GDM.
Two reviewers independently assessed CPG quality (using the AGREE II tool) with respect to dietary recommendations (their strength, evidence base, and research gaps).
Of the 31 CPGs, 68% were assessed as low quality, mainly due to lack of editorial independence. Dietary advice was recommended as the first-line treatment by all CPGs, although the dietary recommendations themselves varied and sometimes were contradictory. Most dietary recommendations were strongly made (70%), but they were often based on very low-quality (54%), or low-quality (15%) evidence. Research gaps were identified for all diet-related recommendations.
High-quality research is needed to improve the evidence base and address the research gaps identified.
PROSPERO registration no. CRD42019147848.
饮食建议是妊娠糖尿病（GDM）女性护理的基石，可改善母婴健康。
本研究旨在比较 GDM 管理临床实践指南（CPG）中提出的饮食建议，评估其证据基础，确定研究空白，并评估 CPG 质量。采用 PRISMA 指南。
检索了 2000 年至 2019 年间发表的六数据库中的 CPG，其中包括 GDM 管理的饮食建议。
两名审查员独立评估了 CPG 质量（使用 AGREE II 工具），涉及饮食建议（其强度、证据基础和研究空白）。
在 31 项 CPG 中，68%被评估为低质量，主要是由于缺乏编辑独立性。所有 CPG 均建议将饮食作为一线治疗，但饮食建议本身存在差异，有时甚至相互矛盾。大多数饮食建议都得到了强烈推荐（70%），但它们通常基于非常低质量（54%）或低质量（15%）的证据。所有与饮食相关的建议都确定了研究空白。
需要高质量的研究来改善证据基础并解决确定的研究空白。
PROSPERO 注册编号 CRD42019147848。
