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. 2021 Apr;38(4):e14454.
doi: 10.1111/dme.14454. Epub 2020 Dec 6.

The investigation of diabetes in people living with HIV: A systematic review

Harriet Daultrey  1 , Elaney Youseff  1 , Juliet Wright  1 , Kevin Davies  1 , Ali J Chakera  2 , Tom Levett  1
Affiliations

The investigation of diabetes in people living with HIV: A systematic review

Harriet Daultrey et al. Diabet Med. 2021 Apr.

Abstract

Aims: HbA1c is reported to underestimate glycaemia in people living with HIV (PLHIV). There is not an internationally agreed screening method for diabetes. The primary aim was to identify which tests are performed to diagnose and monitor diabetes in PLHIV. Secondary aims were to identify whether prevalence or incidence of diabetes differs according to marker of glycaemia and how figures compare in PLHIV compared to people without.

Methods: Electronic databases were searched for studies investigating diabetes in PLHIV, not pregnant, aged ≥18 years. Narrative analysis and descriptive statistics were used to describe which markers of glycaemia, and their frequency, were employed in the diagnosis and monitoring of diabetes in PLHIV. Diagnostic studies provided prevalence or incidence of diabetes.

Results: In all, 45 of 1028 studies were included. Oral glucose tolerance test (OGTT), fasting glucose (FG), HbA1c and Fructosamine were used to investigate diabetes. In total, 27 studies described diagnosing diabetes, 14 using OGTT, 12 FG and 7 HbA1c. All 18 studies monitoring diabetes used HbA1c. Prevalence ranged from 1.3% to 26% and incidence 2.9% to 12.8%. Studies using glucose and HbA1c reported HbA1c to diagnose fewer people with diabetes, monitoring studies found HbA1c to underestimate glycaemia levels. Controlled studies demonstrate diabetes was more common in PLHIV.

Conclusion: OGTT was used most frequently to diagnose diabetes, and HbA1c to monitor known diabetes. Prevalence and incidence varied depending on marker of glycaemia used. Studies reported a discrepancy in accuracy of HbA1c in PLHIV, to address this, well-designed, prospective studies, providing individual-level data on HbA1c levels and an additional marker of glycaemia in PLHIV are needed.

Keywords: HIV; HbA1c; OGTT; diabetes; diagnosis; fasting glucose; monitoring.

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References

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