Cohort study

Association of Autoimmune Diseases With Coronary Atherosclerosis Severity and Ischemic Events

J Am Coll CardiolPublished

  • Registry-based cohort study

Authors' conclusion

Autoimmune diseases were independently associated with higher burden of coronary atherosclerosis and higher risk for future ASCVD events, with risk accentuated by traditional cardiovascular risk factors.

Study context

Population
Patients undergoing coronary CT angiography, Western Denmark Heart Registry3,832 atherosclerotic cardiovascular disease (ASCVD) events
Participants
85,512 patients
Exposure
Autoimmune disease vs no autoimmune disease
  • Autoimmune diseasen = 4,064
Outcome
Coronary atherosclerosis (any plaque, any coronary artery calcification (CAC), CAC >90th percentile, obstructive CAD) and ASCVD events
Follow-up
5.3 years (Q1-Q3: 2.8-8.2 years)

Main finding

As reported in the abstract

Autoimmune disease vs No autoimmune diseaseEstimate (95% CI)
any plaque
aOR 1.29(1.20–1.40)
any CAC
aOR 1.28(1.19–1.37)
CAC >90th percentile
aOR 1.53(1.39–1.68)
obstructive CAD
aOR 1.04(0.91–1.17)
ASCVD
aHR 1.46(1.29–1.65)

Observational data: associations, not effects.

Further findings

OutcomeEstimate
ASCVD in autoimmune patients, by cardiovascular risk factor profile · ∼54% lower riskaHR 0.46 (95% CI 0.27–0.81)
Obstructive CAD · not associatedaOR 1.04 (95% CI 0.91–1.17)

ASCVD in autoimmune patients, by cardiovascular risk factor profile

Traditional cardiovascular risk factors strongly associated with future ASCVD events

Original publication

Association of Autoimmune Diseases With Coronary Atherosclerosis Severity and Ischemic Events. J Am Coll Cardiol. Published 25 June 2024. doi:10.1016/j.jacc.2024.04.030

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