Coronary disease & ACSCohort study

Prognostic impact of high-intensity lipid-lowering therapy under-prescription after acute myocardial infarction in women

Eur J Prev CardiolPublished

  • Registry-based cohort study
  • nationwide registries
  • propensity-score matched analysis

Authors' conclusion

Women suffer from a bias regarding the prescription of high-intensity LLT after AMI, which did not attenuate between 2005 and 2015, with potential consequences on both survival and risk of cardiovascular events.

Study context

Population
Patients admitted for acute myocardial infarction (AMI) ≤ 48 h from onset over 1 month in 2005, 2010 and 2015 (FAST-MI registries), with long-term follow-up28% women
Participants
12,659 patients
Exposure
Women vs men; high-intensity lipid-lowering therapy (LLT) vs none in women
  • Womenn = 3,547
Outcome
High-intensity LLT prescription at discharge (atorvastatin ≥ 40 mg or equivalent, or statin + ezetimibe) and its association with long-term outcomes in women
Follow-up
Discharge; 5 years

Main finding

High-intensity LLT prescribed at discharge · discharge

Adjusted odds ratio

0.78

95% CI 0.71–0.87

P < 0.001

By group

Women

54

%

Men

68%

Women vs Men
adjusted OR 0.78 (95% CI 0.71–0.87); P < 0.001

As reported in the abstract

Observational data: associations, not effects.

Further findings

OutcomeEstimateP value
Other recommended treatments at discharge (female sex) — Women vs Men · beta-blockersadjusted OR 0.98 (95% CI 0.88–1.10)P = 0.78
Other recommended treatments at discharge (female sex) — Women vs Men · renin-angiotensin blockersadjusted OR 0.94 (95% CI 0.85–1.03)P = 0.18
Survival and infarct- and stroke-free survival in women, high-intensity LLT at discharge vs none · 5 years — High-intensity LLT vs Men · survivaladjusted HR 0.74 (95% CI 0.64–0.86)P < 0.001
Survival and infarct- and stroke-free survival in women, high-intensity LLT at discharge vs none · 5 years — High-intensity LLT vs Men · infarct- and stroke-free survivaladjusted HR 0.81 (95% CI 0.74–0.89)P < 0.001
Survival and infarct- and stroke-free survival in women, high-intensity LLT at discharge vs none · 5 years — High-intensity LLT vs Men · propensity score-matched analysis, 5-year survivalHR 0.82 (95% CI 0.70–0.98)P = 0.03

High-intensity LLT at discharge by year (women vs men)

2005: 25 vs. 35%
P = 0.14
2010: 66 vs. 79%
P < 0.001
2015: 67 vs. 79.5%
P = 0.001

Original publication

Prognostic impact of high-intensity lipid-lowering therapy under-prescription after acute myocardial infarction in women. Eur J Prev Cardiol. Published 5 August 2024. doi:10.1093/eurjpc/zwae255

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