Coronary disease & ACSCohort study

Sex-Specific Trends in Acute Myocardial Infarction Within an Integrated Healthcare Network, 2000 Through 2014

CirculationPublished

  • Retrospective cohort study
  • integrated healthcare delivery system

Authors' conclusion

These results suggest that the incidence of hospitalized AMI declined between 2000 and 2014; however, declines in AMI have slowed among women in comparison with men in recent years.

Study context

Population
Members ≥35 years of age in Kaiser Permanente Southern California, 2000–201445,331 acute myocardial infarction (AMI) hospitalizations
Exposure
Women vs men
Outcome
Temporal trends in incident hospitalized AMI (age- and sex-standardized incidence per 100 000 person-years; AAPC)
Follow-up
2000 through 2014

Main finding

As reported in the abstract

Age- and sex-standardized AMI incidence rate
AMI incidence 2000
322.4 (per 100 000 person-years; 95% CI 311.0-333.9)
AMI incidence 2014
174.6 (per 100 000 person-years; 95% CI 168.2-181.0)
AAPC overall
−4.4% (95% CI −4.2 to −4.6)
Period percent change
−46.6%
AAPC women 2000–2009
−4.6% (95% CI −4.1 to −5.2)
AAPC women 2010–2014
−2.3% (95% CI −1.2 to −3.4)
AAPC men, stable over study period
−4.7% (95% CI −4.4 to −4.9)

Observational data: associations, not effects.

Further findings

STEMI hospitalization

AAPC overall
−8.3% (95% CI −8.0% to −8.6%)
AAPC women 2000–2009
−10.2% (95% CI −9.3 to −11.1)
AAPC women 2010–2014
−5.2% (95% CI −3.1 to −7.3)
AAPC men, stable
−8.0% (95% CI −7.6 to −8.4)

NSTEMI hospitalization

AAPC women
−1.9% (95% CI −1.5 to −2.3)
AAPC men
−2.8% (95% CI −2.5 to −3.2)
  • smaller than for STEMI among both women and men

Original publication

Sex-Specific Trends in Acute Myocardial Infarction Within an Integrated Healthcare Network, 2000 Through 2014. Circulation. Published 17 February 2020. doi:10.1161/circulationaha.119.044738

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