1. Background
In Korea, diabetes occurs in about 1 in 7 of adults aged
>30 years, whereas about 3 in 10 people aged >65 are diabetes
[1]. Diabetes is divided into types 1 and 2. Type 2 is
mainly caused by a combination of insulin resistance and
relative insulin deficiency, compared to type 1 diabetes,
which absolutely requires insulin therapy due to the destruction
of pancreatic insulin-producing beta cells [2].
The goal of managing diabetes is to attain an adequate
blood sugar control. Unlike patients with type 1 diabetes,
who receive absolute insulin treatment, patients with type
2 diabetes are to see a doctor regularly to control their
blood sugar levels and manage the aspects of lifestyle such
as diet and exercise therapy, in addition to taking prescribed
drugs, which is very important [3]. Thus, many
studies have been conducted aiming to increase the selfcare
performance rate of patients with diabetes [4-8].
Self-efficacy is well known to affect the self-care of
diabetes.