Objective
To examine whether spouses of patients with severe sepsis are at increased risk for depression independent of the spouse’s pre-sepsis history, whether this risk differs by sex, and is associated with a sepsis patient’s disability after hospitalization.
Design
Prospective longitudinal cohort study.
Setting
Population-based cohort of U.S. adults over 50 years old interviewed as part of the Health and Retirement Study (1993–2008).
Patients
929 patient-spouse dyads comprising 1,212 hospitalizations for severe sepsis.
Measurements and Main Results
Severe sepsis was identified using a validated algorithm in Medicare claims. Depression was assessed with a modified version of the Center for Epidemiologic Studies Depression Scale. All analyses were stratified by gender. The prevalence of substantial depressive symptoms in wives of patients with severe sepsis increased by 14 percentage points at the time of severe sepsis (from 20% at a median of 1.1 years pre-sepsis to 34% at a median of 1 year post-sepsis), an odds ratio (OR) of 3.74 (95% Confidence Interval [CI]: 2.20, 6.37), in multivariable regression. Husbands had an 8 percentage point increase in the prevalence of substantial depressive symptoms, which was not significant in multivariable regression (OR 1.90, 95%CI: 0.75, 4.71). The increase in depression was not explained by bereavement; women had greater odds of substantial depressive symptoms even when their spouse survived a severe sepsis hospitalization (OR 2.86, 95%CI 1.06, 7.73). Wives of sepsis survivors who were disabled were more likely to be depressed (OR 1.35 per ADL limitation of sepsis survivor, 95%CI: 1.12, 1.64); however, controlling for patient disability only slightly attenuated the association between sepsis and wives’ depression (OR 2.61, 95%CI: 0.93, 7.38).
Conclusions
Older women may be at greater risk for depression if their spouse is hospitalized for severe sepsis. Spouses of patients with severe sepsis may benefit from greater supports and depression screening, both when their loved one dies, but also when their loved one survives.