Gender differences in mortality among treated opioid dependent patients

Area of Science:

• Public Health
• Addiction Medicine
• Epidemiology

Background:

• Opioid dependence is a significant public health issue with varying mortality risks between genders.
• Understanding gender-specific predictors of mortality is crucial for effective treatment strategies.

Purpose of the Study:

• To investigate gender differences in mortality rates among individuals receiving pharmacological treatment for opioid dependence.
• To identify causes and predictors of death in treated opioid-dependent men and women.

Main Methods:

• Utilized linked vital statistics data for individuals in California's publicly funded opioid dependence treatment programs (2006-2010).
• Calculated standardized mortality ratios (SMR) by gender.
• Employed Cox proportional hazards models to assess gender's effect on all-cause mortality, controlling for covariates.

Main Results:

• Observed 1,031 deaths over a median 2.6 years; women had a higher SMR (5.1) than men (4.3) compared to the general population.
• Women had a 1.18 times higher relative risk of death than men, but a lower instantaneous hazard (HR 0.58) after controlling for factors.
• Mortality predictors differed: employment and medical issues increased risk in men, while concurrent opioid and stimulant use impacted both genders differently.

Conclusions:

• Treatment can reduce mortality risk in men by addressing employment, medical problems, and overdose risk.
• Interventions for women should focus on concurrent opioid and stimulant use to mitigate mortality.
• Gender-tailored approaches are essential for improving survival rates in treated opioid-dependent populations.