Novel psychosocial factor involved in diabetes self-care in the Japanese cultural context.

AIMS/INTRODUCTION: Recent evidence shows that cultural context can influence the management of diabetes mellitus. The aim of the present study was to examine the relationship between interdependence, which is valued in the Eastern cultural context, and diabetes self-care behavior in Japanese patients with type 2 diabetes mellitus. MATERIAL AND METHODS: We carried out a cross-sectional survey of 161 Japanese adults with type 2 diabetes mellitus using well-established questionnaires. The association of an interdependent tendency with diabetes self-care activities was analyzed using multiple regression analysis. RESULTS: Diabetes self-care activities had a negative correlation with interdependent tendency (r = -0.16, P = 0.047), and they had positive correlations with age (r = 0.42, P < 0.001), emotional support (r = 0.25, P = 0.001) and diabetes self-care support (r = 0.36, P < 0.001). When patients were divided into two groups at the median age (68 years), multiple regressions showed that interdependent tendency (ß = -0.20, P = 0.048), male sex (ß = -0.24, P = 0.023), emotional support (ß = 0.22, P = 0.028) and diabetes self-care support (ß = 0.39, P < 0.001) were significant determinants of diabetes self-care activities only in the younger group. CONCLUSIONS: Interdependence might influence diabetes self-care behavior, and intervention focusing on support from close others might lead patients to more successful care among Japanese adults with type 2 diabetes mellitus, especially those aged <68 years.