Sex differences in long-term outcomes of patients across the spectrum of coronary artery disease.

Published

Journal Article

BACKGROUND: Patients with nonobstructive coronary artery disease (CAD) have worse outcomes compared with those without CAD; however, few studies have compared the intermediate- and long-term impact of CAD severity as a function of patient sex. METHODS: We evaluated 5-year and long-term all-cause mortality of women and men undergoing elective coronary angiography at a single center by degree of CAD: no CAD (1%-24% stenosis), nonobstructive CAD (25%-69% epicardial stenosis or 25%-49% left main stenosis), or obstructive CAD (epicardial stenosis ≥70% or left main stenosis ≥50%), both overall and after adjusting for baseline clinical risk factors using Cox proportional-hazards models. RESULTS: Between January 1986 and July 2010, 8,766 women and 11,638 men underwent angiography and were followed for a median of 9.2 years. The majority (67%) of women had no CAD or nonobstructive CAD, whereas the majority of men had obstructive CAD (56%, P < .001). In both sexes, increasing CAD was associated with increased 5-year risk of mortality. Risk-adjusted hazard ratios (vs no CAD) for women were 1.36 (95% CI, 1.16-1.60) and 1.86 (1.61-2.16) for nonobstructive and obstructive CAD, respectively; corresponding hazard ratios for men were 1.24 (1.06-1.45) and 1.38 (1.20-1.59). After risk adjustment, 5-year mortality risk was higher in men than in women at all levels of CAD severity. The relationships between severity of CAD and mortality risk during long-term follow-up in women and men were similar to the 5-year relationships above. CONCLUSIONS: Although women undergoing elective catheterization have less severe CAD than men, nonobstructive CAD is prevalent in both sexes and carries a worse prognosis than no CAD. These data suggest a need for further investigation to establish optimal therapies for this at-risk group of patients with nonobstructive CAD.

Full Text

Duke Authors

Cited Authors

  • Pagidipati, NJ; Mudrick, DW; Chiswell, K; Brucker, A; Peterson, ED; Douglas, PS

Published Date

  • December 2018

Published In

Volume / Issue

  • 206 /

Start / End Page

  • 51 - 60

PubMed ID

  • 30317061

Pubmed Central ID

  • 30317061

Electronic International Standard Serial Number (EISSN)

  • 1097-6744

Digital Object Identifier (DOI)

  • 10.1016/j.ahj.2018.09.014

Language

  • eng

Conference Location

  • United States