Cardiometabolic & kidney

Heterogeneous cardiovascular effects of sodium-glucose cotransporter 2 inhibitors in type 2 diabetes: a causal forest and target trial emulation study

Eur J Prev CardiolPublished Target trial emulation study with machine learning causal forest analysis

Main findingResult — go to the result3-year risk difference +0.38 percentage points 95% CI 0.16–0.61

Authors' conclusion

The cardioprotective effect of SGLT2i was heterogeneous and more strongly predicted by individual patient characteristics than by overall CVD risk score

Study context

Population
Working-age Japanese people with T2DM, 2015–23mean age 54 years
Participants
150,830 people
Exposure
SGLT2 inhibitors vs DPP4 inhibitors
Outcome
Composite of:
  • All-cause death
  • MI
  • Stroke
  • HF
Follow-up
3 years
Methodological detailsnationwide insurer-based database
  • Nationwide insurer-based database

Main finding

As reported in the abstract

3-year risk difference

+0.38 percentage points

95% CI 0.16–0.61

Observational data: associations, not effects.

Further findings

Heterogeneity of predicted benefit (causal forest) vs cardiovascular disease (CVD) risk score

Estimated benefit correlated weakly with CVD risk score (r)
0.287, P < 0.001

Predicted benefit among individuals with low CVD risk (subgroup)

Predicted to benefit from SGLT2i, of 107 425 with low CVD risk
97 757 (91.0%)
Characterized by higher BP, BMI and fasting plasma glucose despite low CVD risk score

Original publication

Heterogeneous cardiovascular effects of sodium-glucose cotransporter 2 inhibitors in type 2 diabetes: a causal forest and target trial emulation study. Eur J Prev Cardiol. Published 1 September 2025. doi:10.1093/eurjpc/zwaf539

Summarised from the published abstract; every number is checked against it

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