ABSTRACT Evidence supports the contribution of depression, anxiety, and poor social support to mortality of hospitalized myocardial infarction (MI) patients. The contribution of depression to survival is independent of disease severity. Pet ownership, a non-human form of social support, has also been associated with one-year survival of post-MI patients. The current study addresses whether pet ownership contributes independently to long-term survival beyond the contributions of depression, anxiety, or low social support in post-MI patients who have already survived at least six months. Data from patients (n = 460) enrolled in the “Psychosocial Responses in the Home Automated External Defibrillator Trial (PR-HAT)” were used. Seventeen patients died during a median follow-up of 2.8 years. In Cox proportional hazards regression models that included depression, lack of pet ownership, and the interaction between depression and lack of pet ownership, not owning a pet was the only significant independent predictor of mortality (p = 0.036). The interaction between pet ownership and depression tended to be significant, indicating that the effect of pet ownership on survival in this group of people who have supportive spouses/companions living with them may relate to depression.

中文翻译：

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心肌梗塞后社区生活患者的宠物、抑郁和长期生存

摘要 证据支持抑郁、焦虑和较差的社会支持对住院心肌梗死 (MI) 患者的死亡率的贡献。抑郁症对生存的贡献与疾病严重程度无关。宠物所有权是一种非人类形式的社会支持，也与 MI 后患者的一年存活率有关。目前的研究解决了养宠物是否对已经存活至少六个月的 MI 后患者的抑郁、焦虑或低社会支持的贡献之外的长期生存做出独立贡献。使用了来自参加“家庭自动体外除颤器试验 (PR-HAT) 中的心理社会反应”的患者 (n = 460) 的数据。在中位随访 2.8 年期间，17 名患者死亡。在 Cox 比例风险回归模型中，包括抑郁症、不养宠物以及抑郁症和不养宠物之间的相互作用，不养宠物是死亡率的唯一显着独立预测因素（p = 0.036）。养宠物和抑郁症之间的相互作用往往是显着的，这表明养宠物对这一群有支持性配偶/同伴生活的人的生存影响可能与抑郁症有关。