Cohort study

Clonal Hematopoiesis of Indeterminate Potential Predicts Adverse Outcomes in Patients With Atherosclerotic Cardiovascular Disease

J Am Coll CardiolPublished

  • Prospective cohort study
  • UK Biobank
  • multivariable-adjusted Cox regression

Authors' conclusion

CHIP is independently associated with adverse outcomes in individuals with established ASCVD, with especially high risks observed in TET2 and SF3B1/SRSF2/U2AF1 CHIP.

Study context

Population
Individuals aged 40 to 70 years with established atherosclerotic cardiovascular disease (ASCVD) and whole-exome sequences, UK Biobank
Participants
13,129 individuals
Exposure
Clonal hematopoiesis of indeterminate potential (CHIP) vs no CHIP
  • CHIPn = 665
Outcome
Composite of:
  • ASCVD events
  • All-cause mortality
Follow-up
Median 10.8 years

Main finding

As reported in the abstract

Each group vs no CHIPAdjusted hazard ratio (95% CI)P value
CHIPany CHIP
1.23(1.10–1.38)
P < 0.001
Large CHIPlarge CHIP
1.34(1.17–1.53)
P < 0.001

Observational data: associations, not effects.

Further findings

OutcomeHR (95% CI)P value
Primary outcome by driver gene (large clones) — Large TET2 CHIP vs No CHIP1.89 (1.40–2.55)P < 0.001
Primary outcome by driver gene (large clones) — Large spliceosome CHIP vs No CHIP · SF3B1/SRSF2/U2AF13.02 (1.95–4.70)P < 0.001

Original publication

Clonal Hematopoiesis of Indeterminate Potential Predicts Adverse Outcomes in Patients With Atherosclerotic Cardiovascular Disease. J Am Coll Cardiol. Published 23 May 2023. doi:10.1016/j.jacc.2023.03.401

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