Comparison of the Sensor-Augmented Pump System with the Advanced Hybrid Closed-Loop Delivery System: Quality of Life, Diabetes Distress, and Glycaemic Outcomes in a Real-Life Context

BACKGROUND

Type 1 diabetes mellitus (T1D) is a chronic disease that requires exogenous insulin administration and intensive management to prevent any complications. Recent innovations in T1D management technologies include the Advanced Hybrid Closed-Loop delivery system (AHCL). The pioneer AHCL system provides automated basal and automated bolus corrections when needed.

OBJECTIVE

This study aimed to compare the Advanced Hybrid Closed-Loop (AHCL) system and the Sensor-Augmented Pump (SAP) with Predictive Low Glucose Management (PLGM) system, in relation to glycaemic outcomes, general and diabetes-related Quality of Life (QoL), and diabetes distress.

METHODS

General and diabetes-related QoL were assessed with the Diabetes Quality of Life Brief Clinical Inventory (DQOL-BCI) and the World Health Organization Quality of Life-BREF (WHOQOL-BREF), respectively. Diabetes distress was assessed with the Diabetes Distress Scale for Type 1 diabetes (T1-DDS).

RESULTS

Eighty-nine T1D adults participated in the study, mostly females (65.2%), with a mean age of 39.8 (± 11.5 years). They had on average 23 years of diabetes (± 10.7) and they were on continuous subcutaneous insulin infusion therapy. Significant differences favoring the AHCL over the SAP + PLGM system were demonstrated by lower mean glucose levels, less time above range, lower scores on DQOL-BCI, T1-DDS, and higher scores on WHOQOL-BREF. Finally, the linear regression models revealed the association of time in range in most of the above aspects.

CONCLUSION

This study highlighted the advantages of the AHCL system over the SAP + PLGM system in the real-world setting in relation to general and diabetes-related QoL, diabetes distress, and glycaemic outcomes.

Dimensionality and psychometric properties of the Greek version of the Τype 1 Diabetes Stigma Assessment Scale (DSAS-1-Gr)

Type 1 Diabetes Mellitus (T1D) is one of the most common chronic diseases affecting children and adolescents. The daily management of T1D requires continuous insulin therapy, as well as the inevitable adjustment of daily activities according to glycaemic control, both of which may result in experiencing T1D related stigma. A significant proportion of people with T1D have been shown to experience social discrimination and stigma, which can lead to emotional distress and act as a barrier to help-seeking behavior. This study presents the psychometric properties of the Greek translation of the Diabetes Stigma Assessment Scale-1 (DSAS-1), which assesses self-perceived stigma in people with T1D. A sample of 105 adults with T1D, mostly females (70.5%), with a mean age of 34.3 years (±11.1), and mean disease duration of 19.4 years (±10.5), completed the translated in Greek DSAS-1 (DSAS-1-Gr). Exploratory and confirmatory factor analyses were used to investigate the construct validity of the scale. In line with the original version, the results of the present study supported the three-factor model of the scale 'identity concerns', 'different treatment', 'blame and judgment'. The internal consistency indices (Cronbach alpha) of the three subscales were above α=.80 and .88 for the whole scale. Moderate correlations were found between the DSAS-1-Gr and the Diabetes Distress scale for type 1 Diabetes (T1-DDS), the Rosenberg self-esteem scale, and the DASS-21 subscales (depression, anxiety, and stress), which is indicative of convergent validity. DSAS-1-Gr correlated negatively with the diabetes duration (in years), which was indicative of discriminant validity. Finally, females presented higher total DSAS-1-Gr score than males. DSAS-1-Gr is a valid and reliable tool to be used in clinical practice to assess stigma in Greek people with T1D.

Dimensionality and psychometric properties of the Parent Diabetes Distress Scale -Greek (PDDS-Gr)

Type 1 diabetes (T1D) is a chronic disease characterised by insulin deficiency due to autoimmune destruction of beta-pancreatic cells. T1D, formerly known as juvenile diabetes, is the most common form of diabetes in children and adolescents. On diagnosis, parents of children with TID experience considerable stress, because they need to care for a child in a challenging and life-threatening situation that requires adherence to an intensive medical regimen, constant monitoring of, and coping with their child's condition. T1D is a complex condition that affects both children and their parents in many aspects of their daily lives. This study presents the psychometric properties of the Greek translation of the Parent Diabetes Distress Scale (PDDS), which assesses diabetes distress in parents of children with T1D. A sample of 95 parents, mainly mothers (88.4%), with a mean age of their children 12.2 years (± 3.6) and a diabetes duration of 4.7 years (± 3.4), completed the Greek translation of the PDDS. Exploratory factor analysis (EFA) revealed a five-factor model: 'Parent/child relationship distress', 'Personal distress', 'Child diabetes management distress', 'Future distress', and 'Healthcare team distress'. Confirmation Factor Analysis (CFA) confirmed the construct validity of the scale. The internal consistency indices (Cronbach alpha) for the subscales ranged from 0.69 to 0.89, while the unidimensional structure had an alpha of 0.90. Furthermore, convergent validity was shown with moderate positive correlations between the PDDS-Gr and the subscales of the DASS-21 (depression, anxiety, and stress), the child's age (in years), and the HbA1c value. Finally, parents of children with inadequate glycemic control (HbA1c ≥ 7%) presented higher scores on both the unidimensional structure and the subscales 'Parent/child relationship distress' and 'Healthcare team distress' of the PDDS-Gr. The PDDS-Gr is a valid and reliable tool for assessing diabetes distress in parents of children with T1D and can be used in both clinical and research settings.