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Published on: February 6, 2021
Infective Endocarditis Among Women Who Inject Drugs.
Janica A Adams1, Cara Spence1,2, Esfandiar Shojaei3
1Division of Infectious Diseases, Department of Medicine, College of Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.
Women who inject drugs (WWID) are disproportionately affected by infective endocarditis (IE). Prioritizing inpatient substance use disorder services and social support for WWID, especially in urban areas, is crucial for improving outcomes.
Area of Science:
- Cardiovascular Medicine
- Infectious Diseases
- Public Health
Background:
- Women constitute approximately one-third of people who inject drugs (PWID) in the US and Canada.
- Clinical characteristics and outcomes of injection drug use complications in women are not well-described.
- Infective endocarditis (IE) is a serious complication of injection drug use.
Purpose of the Study:
- To identify clinical characteristics and outcomes of infective endocarditis (IE) among women who inject drugs (WWID).
Main Methods:
- Retrospective cohort study of PWID with definite IE admitted to 5 tertiary-care hospitals in Canada.
- Data collected from April 5, 2007, to March 15, 2018.
- Analysis included descriptive statistics and multivariable time-dependent Cox proportional hazards regression for 5-year mortality.
Main Results:
- Women comprised 51.2% of PWID with IE, a higher proportion than non-PWID.
- WWID with IE were younger and had a higher proportion of right-sided IE compared to men.
- Higher mortality was observed in WWID in urban areas and those with congestive heart failure; lower mortality was associated with inpatient substance use disorder services and right-sided heart disease.
Conclusions:
- Women are overrepresented among PWID with IE, necessitating further research into reasons for this disparity.
- Inpatient substance use disorder services, contraception counseling, and enhanced social support for WWID in urban areas should be prioritized.
- Addressing the unique needs of WWID is critical for improving IE outcomes in this population.
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