Type 2 & other diabetes

The effect of HbA1c variability on the efficacy of intensive blood pressure control in patients with type 2 diabetes

Diabetes Obes MetabPublished Secondary analysis of the Action to Control Cardiovascular Risk in Diabetes Blood Pressure (ACCORD-BP) randomised trial

An erratum to this article was published (Diabetes Obes Metab, May 2025 ↗)

Primary result · Primary composite outcome (nonfatal MI, stroke, CV death), intensive BP control effect by HbA1c variability groupResult — go to the resultHazard ratio 0.60 95% CI 0.40–0.90

Authors' conclusion

HbA1c variability had effect on the efficacy of intensive BP control and intensive BP control brought a significant macrovascular benefit in patients with type 2 diabetes and low HbA1c variability.

Study context

Population
Patients with T2D in the ACCORD-BP trial
Comparison
Intensive blood pressure (BP) control vs standard BP control, by HbA1c variability group
Primary endpoint
Composite of:
  • Nonfatal MI
  • Stroke
  • CV death
Methodological detailssubgroup analysis, K-means clustering by HbA1c variability score and baseline HbA1c
  • Subgroup analysis
  • K-means clustering by HbA1c variability score and baseline HbA1c

Primary result

As reported in the abstract

Primary composite outcome (nonfatal MI, stroke, CV death), intensive BP control effect by HbA1c variability group

Hazard ratio

0.60

95% CI 0.40–0.90

p interaction was 0.03

Intensive BP controlvs standard BP control, by HbA1c variability group
HR 0.60 (95% CI 0.40–0.90); p interaction was 0.03

Further findings

Non-fatal myocardial infarction (MI), low HbA1c variability

HR (95% CI)P value
Intensive BP control (low HbA1c variability)0.61 (0.37–1.00)p interaction was 0.04

Stroke, low HbA1c variability

HR (95% CI)P value
Intensive BP control (low HbA1c variability)0.19 (0.05–0.64)p interaction was 0.02
OutcomeP value
CV and all-cause mortalityP for interaction > 0.05

CV and all-cause mortality

Intensive BP control did not reduce CV or all-cause mortality in any variability group, on relative and absolute scales

Original publication

The effect of HbA1c variability on the efficacy of intensive blood pressure control in patients with type 2 diabetes. Diabetes Obes Metab. Published 3 December 2024. doi:10.1111/dom.16112

Composed by AI from the published abstract and checked against it. How Briefs are made →

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