Diabetes technology

The efficacy of intermittent scanning continuous glucose monitoring in the elderly: A case–control study

Diabetes Obes MetabPublished Retrospective case-control study

Authors' conclusion

The use of is-CGM improves glycemic control in elderly (≥60 years old) persons with DM after 3 months, and this persists for at least 24 months. The number of discontinuations is low. This data emphasizes the positive impact of is-CGM on the elderly population with DM.

Study context

Population
Elderly people with type 1 or type 2 diabetes mellitus (DM) aged ≥60 years, DM outpatient clinic of the University Medical Center Groningen, 2015–2022353 analysed
Participants
142 vs 211
Comparison
Intermittently scanning continuous glucose monitoring (is-CGM) initiation vs no CGM usage
  • Casesn = 142
  • Controlsn = 211reference
Outcome
HbA1c (glycemic control) after is-CGM initiation
Methodological detailsobservational, matched on age, gender, DM type and treatment type (insulin-pen or pump)
  • Observational
  • Matched on age, gender, DM type and treatment type (insulin-pen or pump)

Main finding

As reported in the abstract

HbA1c reduction, unadjusted · 3 months after initialization

Cases

−0.50

%

Controls

−0.02

%

P = 0.016

Observational data: associations, not effects.

Further findings

HbA1c at baseline

Outcome%P value
HbA1c change, adjusted for confounders · 6 monthsSignificant HbA1c reduction with is-CGM initiation · adjusted for confounders−0.29P = 0.006
HbA1c change, adjusted for confounders · 24 monthsSignificant HbA1c reduction with is-CGM initiation · adjusted for confounders−0.39P = 0.033

Sensor discontinuation

Rate of sensor discontinuation
2.8%

Original publication

The efficacy of intermittent scanning continuous glucose monitoring in the elderly: A case–control study. Diabetes Obes Metab. Published 13 May 2025. doi:10.1111/dom.16417

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