Trial Outcomes & Findings for Check It! 2.0: Positive Psychology Intervention for Adolescents With Type 1 Diabetes (NCT NCT02984709)

NCT ID: NCT02984709

Last Updated: 2019-04-24

Results Overview

A1C is the percentage of glycosylated hemoglobin and represents an average of glycemic control over the previous 2-3 months.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

48 participants

Primary outcome timeframe

3 months

Results posted on

2019-04-24

Participant Flow

Participant milestones

Participant milestones
Measure
Experimental: Positive Psychology Intervention
Adolescents randomized to the positive psychology group will receive the intervention components via text message. They will be instructed to think about things that make them feel good when they are struggling with diabetes management (i.e. gratitude). Also they will be instructed to think about a positive value when they are in a situation that makes it hard to check their blood sugar (i.e. Self Affirmation). Additionally, to induce positive mood they will be texted gift cards codes valued at $5.00. Further, caregivers will be asked to provide weekly positive affirmations to their adolescents, focused on non-diabetes strengths. All adolescents will be given developmentally-appropriate diabetes education material at the time of enrollment.
Active Comparator: Education Group
Adolescents randomized to the education group will be given developmentally appropriate diabetes education material at the time of enrollment.
Overall Study
STARTED
24
24
Overall Study
COMPLETED
24
24
Overall Study
NOT COMPLETED
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Check It! 2.0: Positive Psychology Intervention for Adolescents With Type 1 Diabetes

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Experimental: Positive Psychology Intervention
n=24 Participants
The text message group will receive the intervention components via text message. They will be instructed to think about things that make them feel good when they are struggling with diabetes management (i.e. gratitude). Also they will be instructed to think about a positive value when they are in a situation that makes it hard to check their blood sugar (i.e. SelfAffirmation). Additionally, to induce positive mood they will be texted gift cards codes valued at $5.00. Further, caregivers will be asked to provide weekly positive affirmations to their adolescents, focused on non-diabetes strengths. All adolescents will be given developmentally-appropriate diabetes education material at the time of enrollment.
Active Comparator: Education Group
n=24 Participants
The education group will be given developmentally appropriate diabetes education material at the time of enrollment.
Total
n=48 Participants
Total of all reporting groups
Age, Categorical
<=18 years
24 Participants
n=5 Participants
24 Participants
n=7 Participants
48 Participants
n=5 Participants
Age, Categorical
Between 18 and 65 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Age, Categorical
>=65 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Age, Continuous
15.0 years
STANDARD_DEVIATION 1.3 • n=5 Participants
14.4 years
STANDARD_DEVIATION 1.2 • n=7 Participants
14.7 years
STANDARD_DEVIATION 1.3 • n=5 Participants
Sex: Female, Male
Female
14 Participants
n=5 Participants
11 Participants
n=7 Participants
25 Participants
n=5 Participants
Sex: Female, Male
Male
10 Participants
n=5 Participants
13 Participants
n=7 Participants
23 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
2 Participants
n=5 Participants
3 Participants
n=7 Participants
5 Participants
n=5 Participants
Race (NIH/OMB)
White
22 Participants
n=5 Participants
19 Participants
n=7 Participants
41 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
1 Participants
n=7 Participants
1 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
1 Participants
n=7 Participants
1 Participants
n=5 Participants
Region of Enrollment
United States
24 participants
n=5 Participants
24 participants
n=7 Participants
48 participants
n=5 Participants
Glycemic Control (A1C)
8.60 percentage of glycosylated hemoglobin
STANDARD_DEVIATION 0.86 • n=5 Participants
9.00 percentage of glycosylated hemoglobin
STANDARD_DEVIATION 1.07 • n=7 Participants
8.81 percentage of glycosylated hemoglobin
STANDARD_DEVIATION 0.99 • n=5 Participants
Positive Affect
40.3 score on a scale
STANDARD_DEVIATION 7.9 • n=5 Participants
41.2 score on a scale
STANDARD_DEVIATION 9.0 • n=7 Participants
40.8 score on a scale
STANDARD_DEVIATION 8.4 • n=5 Participants
Frequency of Blood Glucose Monitoring
3.5 number of blood glucose checks
STANDARD_DEVIATION 1.4 • n=5 Participants
3.2 number of blood glucose checks
STANDARD_DEVIATION 1.4 • n=7 Participants
3.2 number of blood glucose checks
STANDARD_DEVIATION 1.4 • n=5 Participants
Diabetes Family Conflict Scale
Parent
24.1 score on a scale
STANDARD_DEVIATION 4.3 • n=5 Participants
30 score on a scale
STANDARD_DEVIATION 9.1 • n=7 Participants
27.2 score on a scale
STANDARD_DEVIATION 7.8 • n=5 Participants
Diabetes Family Conflict Scale
Teen
30 score on a scale
STANDARD_DEVIATION 12 • n=5 Participants
33 score on a scale
STANDARD_DEVIATION 12 • n=7 Participants
32 score on a scale
STANDARD_DEVIATION 12 • n=5 Participants
Quality of Life
70 score on a scale
STANDARD_DEVIATION 13 • n=5 Participants
72 score on a scale
STANDARD_DEVIATION 11 • n=7 Participants
71 score on a scale
STANDARD_DEVIATION 12 • n=5 Participants
Primary Control Coping
.17 ratio score
STANDARD_DEVIATION .04 • n=5 Participants
.18 ratio score
STANDARD_DEVIATION .04 • n=7 Participants
.18 ratio score
STANDARD_DEVIATION .04 • n=5 Participants
Secondary Control Coping
.26 ratio score
STANDARD_DEVIATION .05 • n=5 Participants
.27 ratio score
STANDARD_DEVIATION .05 • n=7 Participants
.27 ratio score
STANDARD_DEVIATION .05 • n=5 Participants
Disengagement Coping
.15 ratio score
STANDARD_DEVIATION .03 • n=5 Participants
.15 ratio score
STANDARD_DEVIATION .03 • n=7 Participants
.15 ratio score
STANDARD_DEVIATION .03 • n=5 Participants
Self Care Inventory
Parent
24.8 score on a scale
STANDARD_DEVIATION 4.2 • n=5 Participants
24.5 score on a scale
STANDARD_DEVIATION 4.6 • n=7 Participants
24.7 score on a scale
STANDARD_DEVIATION 4.4 • n=5 Participants
Self Care Inventory
Teen
24.8 score on a scale
STANDARD_DEVIATION 5.2 • n=5 Participants
25.0 score on a scale
STANDARD_DEVIATION 5.1 • n=7 Participants
24.9 score on a scale
STANDARD_DEVIATION 5.1 • n=5 Participants

PRIMARY outcome

Timeframe: 3 months

Population: One participant in the Active Comparator group did not return for a clinic visit and therefore did not have an A1C value at follow-up.

A1C is the percentage of glycosylated hemoglobin and represents an average of glycemic control over the previous 2-3 months.

Outcome measures

Outcome measures
Measure
Experimental: Positive Psychology Intervention
n=24 Participants
The text message group will receive the intervention components via text message. They will be instructed to think about things that make them feel good when they are struggling with diabetes management (i.e. gratitude). Also they will be instructed to think about a positive value when they are in a situation that makes it hard to check their blood sugar (i.e. SelfAffirmation). Additionally, to induce positive mood they will be texted gift cards codes valued at $5.00. Further, caregivers will be asked to provide weekly positive affirmations to their adolescents, focused on non-diabetes strengths. All adolescents will be given developmentally-appropriate diabetes education material at the time of enrollment.
Active Comparator: Education Group
n=23 Participants
The education group will be given developmentally appropriate diabetes education material at the time of enrollment.
Glycemic Control (A1C)
8.60 percentage of glycosylated hemoglobin
Standard Deviation 1.49
9.35 percentage of glycosylated hemoglobin
Standard Deviation 1.39

SECONDARY outcome

Timeframe: 3 months

Population: One teen participant in the Experimental group did not complete follow-up survey data.

Positive affect measured using the Positive and Negative Affect Scale for children (PANAS-C). The positive affect scale consists of 15 items, which are summed for a total score, ranging from 15-60. Higher scores indicate higher levels of positive affect.

Outcome measures

Outcome measures
Measure
Experimental: Positive Psychology Intervention
n=23 Participants
The text message group will receive the intervention components via text message. They will be instructed to think about things that make them feel good when they are struggling with diabetes management (i.e. gratitude). Also they will be instructed to think about a positive value when they are in a situation that makes it hard to check their blood sugar (i.e. SelfAffirmation). Additionally, to induce positive mood they will be texted gift cards codes valued at $5.00. Further, caregivers will be asked to provide weekly positive affirmations to their adolescents, focused on non-diabetes strengths. All adolescents will be given developmentally-appropriate diabetes education material at the time of enrollment.
Active Comparator: Education Group
n=24 Participants
The education group will be given developmentally appropriate diabetes education material at the time of enrollment.
Positive Affect
40.6 score on a scale
Standard Deviation 7.1
42.8 score on a scale
Standard Deviation 9.2

SECONDARY outcome

Timeframe: 3 months

Population: Three participants in the Experimental group and five participants in the Active Comparator group did not bring their glucometers to clinic visits and therefore frequency of blood glucose monitoring could not be obtained.

Glucometer download to determine frequency of blood glucose checks per day. Higher numbers indicates more frequent blood glucose checks.

Outcome measures

Outcome measures
Measure
Experimental: Positive Psychology Intervention
n=21 Participants
The text message group will receive the intervention components via text message. They will be instructed to think about things that make them feel good when they are struggling with diabetes management (i.e. gratitude). Also they will be instructed to think about a positive value when they are in a situation that makes it hard to check their blood sugar (i.e. SelfAffirmation). Additionally, to induce positive mood they will be texted gift cards codes valued at $5.00. Further, caregivers will be asked to provide weekly positive affirmations to their adolescents, focused on non-diabetes strengths. All adolescents will be given developmentally-appropriate diabetes education material at the time of enrollment.
Active Comparator: Education Group
n=19 Participants
The education group will be given developmentally appropriate diabetes education material at the time of enrollment.
Frequency of Blood Glucose Monitoring
3.8 blood glucose checks per day
Standard Deviation 1.3
3.2 blood glucose checks per day
Standard Deviation 1.5

SECONDARY outcome

Timeframe: 3 months

Population: One teen participant in the Experimental group did not complete follow-up survey data. All parents completed the follow-up surveys.

Diabetes-specific family conflict was measured with the Revised Diabetes Family Conflict Scale (DRCS), which consists of 19 items regarding how much adolescents and parents argue about diabetes management tasks. Scores range from 19 to 57, and higher scores indicate greater family conflict.

Outcome measures

Outcome measures
Measure
Experimental: Positive Psychology Intervention
n=24 Participants
The text message group will receive the intervention components via text message. They will be instructed to think about things that make them feel good when they are struggling with diabetes management (i.e. gratitude). Also they will be instructed to think about a positive value when they are in a situation that makes it hard to check their blood sugar (i.e. SelfAffirmation). Additionally, to induce positive mood they will be texted gift cards codes valued at $5.00. Further, caregivers will be asked to provide weekly positive affirmations to their adolescents, focused on non-diabetes strengths. All adolescents will be given developmentally-appropriate diabetes education material at the time of enrollment.
Active Comparator: Education Group
n=24 Participants
The education group will be given developmentally appropriate diabetes education material at the time of enrollment.
Diabetes Family Conflict Scale
Diabetes Family Conflict - Teen
30 score on a scale
Standard Deviation 12
36 score on a scale
Standard Deviation 12
Diabetes Family Conflict Scale
Diabetes Family Conflict - Parent
23.8 score on a scale
Standard Deviation 5.7
30.4 score on a scale
Standard Deviation 9.6

SECONDARY outcome

Timeframe: 3 months

Population: One teen participant in the Experimental group did not complete follow-up survey data.

Pediatric Quality of Life Diabetes-Specific Module (PedsQL) measures quality of life. A mean scaled score is calculated, ranging from 0-100, with higher values indicating better quality of life.

Outcome measures

Outcome measures
Measure
Experimental: Positive Psychology Intervention
n=23 Participants
The text message group will receive the intervention components via text message. They will be instructed to think about things that make them feel good when they are struggling with diabetes management (i.e. gratitude). Also they will be instructed to think about a positive value when they are in a situation that makes it hard to check their blood sugar (i.e. SelfAffirmation). Additionally, to induce positive mood they will be texted gift cards codes valued at $5.00. Further, caregivers will be asked to provide weekly positive affirmations to their adolescents, focused on non-diabetes strengths. All adolescents will be given developmentally-appropriate diabetes education material at the time of enrollment.
Active Comparator: Education Group
n=24 Participants
The education group will be given developmentally appropriate diabetes education material at the time of enrollment.
Diabetes-Specific Quality of Life
71 score on a scale
Standard Deviation 14
71 score on a scale
Standard Deviation 11

SECONDARY outcome

Timeframe: 3 months

Population: One teen participant in the Experimental group did not complete follow-up survey data.

Responses to Stress Questionnaire measures coping with diabetes-related stress. Three factors of coping are measured: primary control coping, secondary control coping,and disengagement coping. A ratio score is calculated to determine the ratio of each type of coping in relation to total coping, ranging from 0.00 to 1.00. Higher scores indicate greater relative use of primary control coping (e.g., problem solving, emotional modulation).

Outcome measures

Outcome measures
Measure
Experimental: Positive Psychology Intervention
n=23 Participants
The text message group will receive the intervention components via text message. They will be instructed to think about things that make them feel good when they are struggling with diabetes management (i.e. gratitude). Also they will be instructed to think about a positive value when they are in a situation that makes it hard to check their blood sugar (i.e. SelfAffirmation). Additionally, to induce positive mood they will be texted gift cards codes valued at $5.00. Further, caregivers will be asked to provide weekly positive affirmations to their adolescents, focused on non-diabetes strengths. All adolescents will be given developmentally-appropriate diabetes education material at the time of enrollment.
Active Comparator: Education Group
n=24 Participants
The education group will be given developmentally appropriate diabetes education material at the time of enrollment.
Primary Control Coping
.18 ratio score
Standard Deviation .03
.20 ratio score
Standard Deviation .04

SECONDARY outcome

Timeframe: 3 months

Population: One teen participant in the Experimental group did not complete follow-up survey data.

Responses to Stress Questionnaire measures coping with diabetes-related stress. Three factors of coping are measured: primary control coping, secondary control coping,and disengagement coping. A ratio score is calculated to determine the ratio of each type of coping in relation to total coping, ranging from 0.00 to 1.00. Higher levels indicate greater relative use of secondary control coping (e.g., acceptance, distraction, positive thinking).

Outcome measures

Outcome measures
Measure
Experimental: Positive Psychology Intervention
n=23 Participants
The text message group will receive the intervention components via text message. They will be instructed to think about things that make them feel good when they are struggling with diabetes management (i.e. gratitude). Also they will be instructed to think about a positive value when they are in a situation that makes it hard to check their blood sugar (i.e. SelfAffirmation). Additionally, to induce positive mood they will be texted gift cards codes valued at $5.00. Further, caregivers will be asked to provide weekly positive affirmations to their adolescents, focused on non-diabetes strengths. All adolescents will be given developmentally-appropriate diabetes education material at the time of enrollment.
Active Comparator: Education Group
n=24 Participants
The education group will be given developmentally appropriate diabetes education material at the time of enrollment.
Secondary Control Coping
.27 ratio score
Standard Deviation .05
.28 ratio score
Standard Deviation .04

SECONDARY outcome

Timeframe: 3 months

Population: One teen participant in the Experimental group did not complete follow-up survey data.

Responses to Stress Questionnaire measures coping with diabetes-related stress. Three factors of coping are measured: primary control coping, secondary control coping,and disengagement coping. A ratio score is calculated to determine the ratio of each type of coping in relation to total coping, ranging from 0.00 to 1.00. Higher levels indicate greater relative use of disengagement control coping (e.g., avoidance, denial).

Outcome measures

Outcome measures
Measure
Experimental: Positive Psychology Intervention
n=23 Participants
The text message group will receive the intervention components via text message. They will be instructed to think about things that make them feel good when they are struggling with diabetes management (i.e. gratitude). Also they will be instructed to think about a positive value when they are in a situation that makes it hard to check their blood sugar (i.e. SelfAffirmation). Additionally, to induce positive mood they will be texted gift cards codes valued at $5.00. Further, caregivers will be asked to provide weekly positive affirmations to their adolescents, focused on non-diabetes strengths. All adolescents will be given developmentally-appropriate diabetes education material at the time of enrollment.
Active Comparator: Education Group
n=24 Participants
The education group will be given developmentally appropriate diabetes education material at the time of enrollment.
Disengagement Coping
.14 ratio score
Standard Deviation .03
.14 ratio score
Standard Deviation .03

SECONDARY outcome

Timeframe: 3 months

Population: One teen participant in the Experimental group did not complete follow-up survey data. All parents completed the follow-up surveys.

The Self Care Inventory measures adherence to the recommended diabetes treatment regimen. Adolescents and parents report on the adolescents' self-care behaviors. Items are summed for a total score, ranging from 7-35. Higher scores indicate higher levels of adherence.

Outcome measures

Outcome measures
Measure
Experimental: Positive Psychology Intervention
n=23 Participants
The text message group will receive the intervention components via text message. They will be instructed to think about things that make them feel good when they are struggling with diabetes management (i.e. gratitude). Also they will be instructed to think about a positive value when they are in a situation that makes it hard to check their blood sugar (i.e. SelfAffirmation). Additionally, to induce positive mood they will be texted gift cards codes valued at $5.00. Further, caregivers will be asked to provide weekly positive affirmations to their adolescents, focused on non-diabetes strengths. All adolescents will be given developmentally-appropriate diabetes education material at the time of enrollment.
Active Comparator: Education Group
n=24 Participants
The education group will be given developmentally appropriate diabetes education material at the time of enrollment.
Self Care Inventory
Self Care Inventory - Parent
26.6 score on a scale
Standard Deviation 3.9
25.9 score on a scale
Standard Deviation 5.2
Self Care Inventory
Self Care Inventory - Teen
25.2 score on a scale
Standard Deviation 5.1
26.0 score on a scale
Standard Deviation 5.3

Adverse Events

Experimental: Positive Psychology Intervention

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Active Comparator: Education Group

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

Sarah Jaser

Vanderbilt University Medical Center

Phone: 615-343-6775

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place