In a study of 199 couples in which one person had type 1 diabetes, we examined how patient appraisal of the diabetes as shared versus individual was associated with collaborative, supportive and unsupportive behavior and whether patient shared illness appraisal was most beneficial for health when it occurred in the context of supportive behavior. We assessed illness appraisal among patients with type 1 diabetes and their partners and had patients complete relationship and health measures. Results showed partners were more likely than patients to hold shared illness appraisals. Patients' shared appraisals were associated with more collaborative and instrumental support, more emotional support, less protective buffering, and more overprotective behavior. When patients and partners were consistent in their shared appraisals, support was highest. Regression analysis showed collaborative and instrumental support, as well as emotional support, was related to better psychological and physical health when patients held shared compared to individual illness appraisals.
Keywords: Communal coping; Couples; Dyadic coping; Social support; Type 1 diabetes.