Illness Perceptions Mediate the Impact of Depressive Symptoms on Quality of Life Among Latinos with Type 2 Diabetes.

Latinos' type 2 diabetes (T2DM) and concurrent depression significantly lower quality of life (QoL). Patients' beliefs about their diabetes, called illness perceptions (IP), may account for the impact of depression on QoL. Using secondary data, we explored predictive and mediation relationships among IP, depression, and QoL among Mexican American adults with T2DM using hierarchical multiple regression and mediation analyses. Participants (n = 75) were predominately middle-aged, female, most scoring low on depressive-symptoms, who believed that diabetes was a chronic disease with serious consequences, controllable by treatment and personal self-management. Participants with higher acculturation and weak perceptions about negative consequences of diabetes reported better QoL. Depressive symptoms' impact on QoL were mediated by overall IP and perceptions about diabetes consequences, in particular. By eliciting patients' perceptions about disease consequences and teaching realistic ways to avoid them, clinicians may alleviate the impact of depression on QoL.