Abstract 3463: Gender Differences In Access to Coronary Angiography Following Acute Myocardial Infarction
Objective(s): Studies suggest that an early invasive approach following AMI is equally important in both genders. We sought to compare coronary catheterization rates among men and women following an AMI from 1994 to 2002.
Methods: We studied 43 539 patients in British Columbia, Canada, >20 years of age with an AMI admission between April 1, 1994, and December 31, 2002. Data were extracted from the BC Hospitalization Database. Exclusion criteria included patients with a previous AMI within one year; patients with prior catheterization, PCI, or CABG within 6 months; and patients who died within 90 days of the index AMI. Our primary interest was gender differences in access to catheterization within 90 days of the index AMI admission and trends in access from 1994 to 2002.
Results: Of the 35 380 eligible patients, 35.8% of women and 47.9% of men underwent catheterization within 90 days of their index AMI admission (p<0.0001). After adjusting for baseline characteristics, women were still less likely to undergo catheterization, but this effect was modified by age (p-interaction<0.0001, Table 1⇓). The gender gap remained from 1994 to 2002 (Figure 1⇓).
Conclusion: From 1994 to 2002, women were less likely than men to receive coronary catheterization following AMI. After adjustment for baseline differences, the gender gap persisted in patients 50 years of age and older.