Pilot of Pragmatic Delivery of Behavioral Approaches to Reduce Diabetes Distress in Adults With Type 1 Diabetes

Self-reported total diabetes distress will be measured using the 28-item Type 1 Diabetes Distress Scale (T1-DDS Total Score). The scale yields an overall distress score that is the average of all responses rated on a 6-point Likert scale for all 28 items (range 1-6). A score >= 2.0 is considered clinically significant diabetes distress. The primary efficacy outcomes of this study is the change in the T1D-DDS score and the proportion of individuals with a change in the T1D-DDS score at least as large as one minimally clinically important difference (MCID).

Self-reported core diabetes distress will be measured using the newer, 8-item Type 1 Diabetes Distress Assessment System (T1-DDAS Core Score). The scale yields a core distress score that is the average of all responses rated on a 5-point Likert scale for all 8 items (range 1-5). A score >= 2.0 is considered clinically significant diabetes distress.

Self-reported sources of diabetes distress will be measured using the 7 subscales of the 28-item Type 1 Diabetes Distress Scale (T1-DDS Subscale Scores). In addition to the Total Score, the T1-DDS scale also yields a score for each of 7 subscales based on the average response on all of the items in that subscale (range = 1-6). The 7 subscale scores measure sources including: Powerlessness, Management Distress, Hypoglycemia Distress, Negative Social Perceptions, Eating Distress, Physician Distress, and Friend/Family Distress. A score >= 2.0 is considered clinically significant diabetes distress for each source.

The Perceived Stress Scale 4 (PSS-4) is a 4-item questionnaire used to measure the degree to which situations in one's life are appraised as stressful during the last month. Respondents self-report the frequency of four key thoughts and feelings over the past month using a 5-point Likert scale. Total score is determined by adding together the scores of each of the four items (range 0-4).

The Diabetes Quality of Life (DQOL) - Brief Clinical Inventory is a 15-item questionnaire used to provide a total health-related quality of life score that predicts self-reported diabetes care behaviors and satisfaction with diabetes control. Items are scored on 5-point Likert scale under two general formats. One format asks about the frequency of negative impact of diabetes itself or of the diabetes treatment and provides response options from 1 ("Never") to 5 ("All the time"). The second format asks about satisfaction with treatment and quality of life and is scored from 1 ("Very satisfied") to 5 ("Very dissatisfied").

The Perceived Competence in Diabetes Scale (PCDS) is a 4-item questionnaire used to assess the degree to which persons with diabetes feel they can manage the everyday aspects of diabetes care. Items are scored on a 1-7 Likert scale from 1 ("not at all true") to 7 ("very true"); items are averaged to form a perceived competence score (range 1-7).

The Diabetes Specific Self-Compassion (SCS-D) is a 19-item questionnaire used to assess diabetes specific self-compassion and self-buffering against negative emotions in adults with T1D. Items are scored on a 1-5 Likert scale; average scores determined by calculating the mean of subscale item responses.

The Hypoglycemic Attitudes and Behavior Scale (HABS) is a 14-item self-report scale highlighting two critical dimensions of hypoglycemia-related concerns (anxiety and avoidance) and one positive dimension (confidence). Items are scored on a 1-5 Likert scale from 1 ("Strongly Disagree") to 5 ("Strongly Agree"); Mean item scores are assessed for each hypoglycemia related dimension.

HbA1c (%) reflects average glucose over the past 2-3 months. Value will be assessed by standardized laboratory assay for trial baseline and endpoint. 3- and 6-mo post-Endpoint data will be extracted from the electronic medical record.

For participants using personal continuous glucose monitors (CGM), the percentage of sensor values between 70-180 mg/dL will be measured using 7-14 days of retrospective data at each time-point. Change in TIR will be calculated across time-points.

For participants using personal continuous glucose monitors (CGM), the percentage of sensor values in the hypoglycemic range (<70 mg/dL) will be measured using 7-14 days of retrospective data at each time-point. Change in TBR will be calculated across time-points.

For participants using personal continuous glucose monitors (CGM), the percentage of sensor values in the hyperglycemia range (>180 mg/dL) will be measured using 7-14 days of retrospective data at each time-point. Change in TAR will be calculated across time-points.

For participants using personal continuous glucose monitors (CGM), glycemic variability will be assessed using the coefficient of variation (%CV). Change in %CV will be calculated across time-points.

Satisfaction in the intervention for managing distress and type 1 diabetes will be self-reported using a 6-point Likert scale (1-6). Low satisfaction will be defined as a score <3.0.

Perceived value of the intervention for managing distress and type 1 diabetes will be self-reported using a 6-point Likert scale (1-6). Low perceived effectiveness will be defined as a score <3.0.

Self-reported total diabetes distress will be measured using the 28-item Type 1 Diabetes Distress Scale (T1-DDS Total Score). The scale yields an overall distress score that is the average of all responses rated on a 6-point Likert scale for all 28 items (range 1-6). A score >= 2.0 is considered clinically significant diabetes distress. The primary efficacy outcomes of this study is the change in the T1D-DDS score and the proportion of individuals with a change in the T1D-DDS score at least as large as one minimally clinically important difference (MCID).

Self-reported core diabetes distress will be measured using the newer, 8-item Type 1 Diabetes Distress Assessment System (T1-DDAS Core Score). The scale yields a core distress score that is the average of all responses rated on a 5-point Likert scale for all 8 items (range 1-5). A score >= 2.0 is considered clinically significant diabetes distress.

Self-reported sources of diabetes distress will be measured using the 7 subscales of the 28-item Type 1 Diabetes Distress Scale (T1-DDS Subscale Scores). In addition to the Total Score, the T1-DDS scale also yields a score for each of 7 subscales based on the average response on all of the items in that subscale (range = 1-6). The 7 subscale scores measure sources including: Powerlessness, Management Distress, Hypoglycemia Distress, Negative Social Perceptions, Eating Distress, Physician Distress, and Friend/Family Distress. A score >= 2.0 is considered clinically significant diabetes distress for each source.

HbA1c (%) reflects average glucose over the past 2-3 months. Value will be assessed by standardized laboratory assay for trial baseline and endpoint. 3- and 6-mo post-Endpoint data will be extracted from the electronic medical record.

For participants using personal continuous glucose monitors (CGM), the percentage of sensor values between 70-180 mg/dL will be measured using 7-14 days of retrospective data at each time-point. Change in TIR will be calculated across time-points.

For participants using personal continuous glucose monitors (CGM), the percentage of sensor values in the hypoglycemic range (<70 mg/dL) will be measured using 7-14 days of retrospective data at each time-point. Change in TBR will be calculated across time-points.

For participants using personal continuous glucose monitors (CGM), the percentage of sensor values in the hyperglycemia range (>180 mg/dL) will be measured using 7-14 days of retrospective data at each time-point. Change in TAR will be calculated across time-points.

For participants using personal continuous glucose monitors (CGM), glycemic variability will be assessed using the coefficient of variation (%CV). Change in %CV will be calculated across time-points.