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Published in: Systematic Reviews 1/2024

Open Access 01-12-2024 | Type 1 Diabetes | Systematic review update

Effect of glycemic control on cognitive function in patients with type 1 diabetes mellitus: a systematic review and meta-analysis

Authors: Wenting Hua, Zouxi Du, Tingting Lu, Limin Tian

Published in: Systematic Reviews | Issue 1/2024

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Abstract

Background

It is controversial whether the level of glycemic control in patients with type 1 diabetes mellitus (T1DM) correlates with reduced cognitive function. This study explored the influence of glycemic management quality on cognitive function in T1DM patients by examining the association between glycemic control level and impaired cognitive function.

Methods

The electronic databases PubMed, Embase, Cochrane Library, China National Knowledge Infrastructure, China Science and Technology Journal database, Wanfang database, and China Biology Medicine disc database were systematically searched to identify eligible studies published before January 2023. Search, selection, and data extraction were performed by two independent reviewers. RevMan 5.4 software was used for meta-analysis, and standardized mean difference (SMD) between groups was calculated.

Results

Six studies involving 351 patients with T1DM were included in this study. Compared with T1DM subjects with good glycemic control, those with poor glycemic control performed worse in full-scale intellectual quotient (= 0.01, SMD = −0.79, 95%CI = −1.42 to −0.17), but no significant differences were observed in verbal intellectual quotient (= 0.08, SMD = −1.03, 95%CI = −2.20 to 0.13), memory (= 0.05, SMD = −0.41, 95%CI = −0.82 to 0.00), and attention (= 0.23, SMD = −0.26, 95%CI = −0.69 to 0.16).

Conclusions

T1DM patients with suboptimal glycemic control may have a worse cognitive function, mainly focusing on the full-scale intellectual quotient. The current study highlights the significance of maintaining satisfactory glycemic control in T1DM patients to improve their health status and quality of life. Standardized tests should be employed in clinical neuropsychological practice to provide early and complete cognitive assessment of individuals with poor glycemic control.

Systematic review registration

The study protocol has been registered in the PROSPERO database (CRD42023390456).
Appendix
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Metadata
Title
Effect of glycemic control on cognitive function in patients with type 1 diabetes mellitus: a systematic review and meta-analysis
Authors
Wenting Hua
Zouxi Du
Tingting Lu
Limin Tian
Publication date
01-12-2024
Publisher
BioMed Central
Published in
Systematic Reviews / Issue 1/2024
Electronic ISSN: 2046-4053
DOI
https://doi.org/10.1186/s13643-023-02433-9

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