The Validation of the Parental Self-Efficacy Scale for Diabetes Management Among Parents of Children Wearing a Continuous Glucose Monitoring Sensor

<b>Background/Objectives:</b> Parental involvement is essential in managing type 1 diabetes mellitus (T1DM) in children, particularly with the growing use of continuous glucose monitoring (CGM). Validated tools assessing parental self-efficacy in this context remain limited. This study aimed to validate the Parental Self-Efficacy Scale for Diabetes Management (PSESDM) among parents of children using a CGM sensor and to examine its associations with diabetes outcomes and parental characteristics. <b>Methods:</b> A cross-sectional study was conducted involving 106 parent-child dyads at a university pediatric diabetes center. Parents completed the Hungarian PSESDM. Data regarding children's HbA1c level were recorded, along with standard measures of their general and diabetes-specific quality of life (EQ-5D-Y-3L, PedsQL Diab); data regarding parents' health literacy (Chew), fear of hypoglycemia (HFS), health-related quality of life (EQ-5D-5L), and capability well-being (ICECAP-A) were also collected. The PSESDM's reliability, internal consistency, and discriminant and criterion validity were assessed using standard statistical methods. <b>Results:</b> The PSESDM demonstrated good internal consistency (Cronbach's α = 0.857) and strong item-total correlations (range: 0.678-0.791). Higher parental self-efficacy was significantly associated with better glucose control (lower HbA1c, r_s = -0.50) and weakly correlated with the child's diabetes-specific quality of life (r_s = 0.20). Among parental characteristics, self-efficacy correlated strongly with capability well-being (r_s = 0.52), moderately with health literacy (r_s = -0.30), and showed no difference between socio-demographic subgroups, except for the subgroup related to income. <b>Conclusions:</b> The PSESDM is a valid and reliable tool for measuring self-efficacy in parents of children with T1DM using CGM sensors. Its associations with children's HbA1c levels, diabetes-specific quality of life, and parental characteristics support its clinical relevance and potential use in identifying families at risk for poorer diabetes outcomes.