Gender Differences in Cardiovascular Risk Related to Diabetes and Posttraumatic Stress Disorder.

OBJECTIVES: To examine relationships between posttraumatic stress disorder (PTSD), diabetes, and cardiovascular disease (CVD) among older men and women. METHODS: In a national retrospective cohort study of Veterans aged ≥55 (n=2,789,264, 6% female), associations between PTSD and diabetes (2008-2011) and incident CVD (2012-2015) were assessed with gender-stratified Fine-Gray proportional hazard models, adjusted for demographics and medical comorbidities. RESULTS: Incident CVD was observed in 22% of men and 12% of women, and related to PTSD (men HR=1.05, 95% CI=1.04-1.06, Wald χ2=80.46, df=1, p<.001; women HR=1.47, 95% CI=1.38-1.57, Wald χ2=148.60, df=1, p<.001), diabetes (men HR=1.34, 95% CI=1.34-1.35, Wald χ2=9177.64, df=1, p<.001; women HR=1.49, 95% CI=1.44-1.55, Wald χ2=419.02, df=1, p<.001), and comorbid PTSD-diabetes (men HR=1.50, 95% CI=1.48-1.52, Wald χ2=4180.92, df=1, p<.001; women HR=1.96, 95% CI=1.80-2.12, Wald χ2=257.28, df=1, p<.001). CONCLUSIONS: CVD risk was increased with PTSD and diabetes, and strongly increased with comorbid PTSD-diabetes. Among women, PTSD and diabetes conferred equivalent CVD risk.