Evidence mapPaperPMID 41942969Full record

SynthesisBMC endocrine disorders2026

Efficacy of continuous glucose monitoring in comparison to self-blood glucose monitoring in patients with type 2 diabetes mellitus under insulin treatment: a systematic review and meta-analysis.

Jingjing Zhu, Lu Zhang

Abstract readSystematic ReviewMeta-AnalysisComparative Study
In one paragraph

Synthesis in BMC endocrine disorders, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed
field-weighted citation impact
1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors.

Jingjing ZhuDepartment of Endocrinology and Metabolism, Ningbo No.6 Hospital, Ningbo, Zhejiang, 315040, China.
Lu ZhangDepartment of Internal Medicine, Ningbo No.6 Hospital, Zhejiang, Ningbo, 315040, China. zcyzl2024@163.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDiabetes Mellitus (DM) affects approximately 10.5% of the global population, necessitating effective glucose monitoring to mitigate complications. Self-monitored blood glucose (SMBG) lacks dynamic glycemic profiling, while continuous glucose monitoring (CGM) provides real-time/intermittent data. This review compares CGM and SMBG in insulin-treated type 2 diabetes (T2DM) patients.

methodA systematic review and meta-analysis of randomized controlled trials (RCTs) from PubMed, Web of Science, and Scopus was conducted until May 2025 and included RCTs compared CGM with SMBG in terms of glycemic indices in adults with T2DM on insulin therapy (± oral agents), excluding studies < 6 weeks or non-insulin treatments. Meta-analysis using a random-effect model was performed.

resultsThirteen RCTs (n = 1550) were included. CGM significantly reduced HbA1c (mean difference [MD] = − 2.78 mmol/mol, 95% CI: −4.68 to − 0.88) and TBR (MD = − 1.30%, 95% CI: −1.94 to − 0.65) versus SMBG. TAR reduction (MD = − 4.12%, 95% CI: −9.11 to 0.88) and TIR increase (MD = 4.04%, 95% CI: −0.09 to 8.17) were non-significant. Substantial heterogeneity in HbA1c (I²=89.66%) persisted despite subgroup analyses based on CGM type. DISCUSSION: CGM improves long-term glucose control (HbA1c) and hypoglycemia risk (TBR) in insulin-treated T2DM, supporting its clinical utility. Non-significant TIR/TAR trends may reflect limited statistical power. Future studies are warranted to delineate the outcome disparities between CGM and SMBG. CLINICAL TRIAL NUMBER: Not applicable.

Indexed as

Blood Glucose Self-MonitoringContinuous Glucose MonitoringDiabetes Mellitus, Type 2Hypoglycemic AgentsInsulinBlood GlucoseHumansRandomized Controlled Trials as TopicBlood GlucoseHypoglycemic AgentsInsulinCGMGlycemic indicesSMBGType 2 diabetes mellitus

Identifiers

PMID41942969
PMCPMC13094254

What Socratic holds

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LicenceCC BY-NC-ND
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.