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Adolescent Mindfulness Mobile App Study (RCT)

Mindfulness-based Mobile Application to Reduce Rumination in Adolescents

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03900416
Acronym
AMMASRCT
Enrollment
152
Registered
2019-04-03
Start date
2019-06-17
Completion date
2021-02-03
Last updated
2021-11-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Anxiety, Depression, Rumination, Self-Injurious Behavior

Keywords

Mindfulness, Mobile Intervention, Brief Intervention, Adolescence

Brief summary

Rumination involves focusing on negative emotions repeatedly and is a risk factor for developing depression, anxiety, and self-injury. These negative outcomes increase in adolescence. The main goal of this study is to examine whether a mobile application designed to reduce rumination works with adolescents. The mobile application involves mindfulness exercises. Mindfulness means nonjudgmentally and deliberately paying attention. Adolescents will be randomly assigned to either the mindfulness group or a control group who uses a mobile application without mindfulness exercises. Both groups will use the app three times per day for three weeks and we will follow up with participants for six months. The investigators hypothesize that the mindfulness group will experience a reduction in rumination and symptoms of depression, anxiety and self-injury. They also expect that the mindfulness group will find the mobile app to be more engaging and will continue to use it beyond the 3 weeks.

Detailed description

Rumination, a perseverative cognitive process that involves dwelling on negative emotions, is a transdiagnostic risk factor for the development of depression, anxiety, and self-injurious behaviors. Thus, reducing the tendency to ruminate in adolescence, a time when many psychological disorders often first develop, has the potential for a large public health impact. This protocol involves testing the acceptability and efficacy of a newly developed mindfulness mobile application designed to reduce rumination. Mindfulness involves paying attention to the present moment without judgement. If negative emotions arise, one notices them and how the body is feeling without becoming caught up in the emotion so that it can pass. In adult clinical studies, intensive mindfulness practice has been associated with successful treatment of psychopathology, including preventing the recurrence of depression, possibly through reducing rumination. Research with adolescents has suggested that a brief mindfulness exercise can interrupt the ruminative process. Thus, mindfulness appears to be a promising strategy to reduce the tendency to ruminate and prevent psychopathology. A diverse sample of 150 high-ruminating 12-15 year-olds will be recruited from the community and randomly assigned to a 3-week mobile mindfulness intervention or an ecological momentary assessment (EMA)-only control condition. In both conditions, adolescents will be notified to use the mobile app three times per day to complete EMA questions. Based on mood ratings, participants in the mindfulness condition have a chance to receive a brief mindfulness exercise (i.e., 1-12 minutes long) at each use. At pre- and post-intervention and three follow-up periods (6 weeks,12 weeks, and 6 months), participants and their parents will report on adolescent anxiety and depression. Adolescents will also report on self-injurious thoughts and behaviors (SITBs), trait rumination, and mindfulness. During the intervention period, participants will report on state levels of rumination, mindfulness, and mood using the app. Participants will also report on their satisfaction with the app, while their optional continued use of the app will be monitored electronically for 6 months following the intervention period. The investigators will test intervention effects using multilevel modeling, examining the role of both state- and trait-level mediators. Based on preliminary pilot data, the investigators expect that the mindfulness intervention will reduce symptoms, and we anticipate this effect to be due to the mediating role of decreased rumination.

Interventions

BEHAVIORALMindfulness App

Mindfulness exercises will last 1-12 minutes. Each one asks participants to focus on something (e.g., breath, sounds, physical sensations) using guided instruction.

Sponsors

Lawrence University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE

Intervention model description

Participants will be randomly assigned to the intervention group (i.e., mindfulness with ecological momentary assessment) or the control group (i.e., ecological momentary assessment only).

Eligibility

Sex/Gender
ALL
Age
12 Years to 15 Years
Healthy volunteers
Yes

Inclusion criteria

* adolescent between the ages of 12 and 15 years * at least moderate levels of rumination (mean score of 2 or above on a 1-4 scale) on the two screening questions

Exclusion criteria

* serious physical or cognitive disability that prevents adolescent from using a mobile device, because that is the intervention delivery method * inadequate English proficiency to complete questionnaires

Design outcomes

Primary

MeasureTime frameDescription
Ease of Use3 weeks (i.e., immediately post-intervention)how easy app was to use (range = 1-7 with higher being easier to use)
Multidimensional Anxiety Scale for Childrenbaselineself-reported anxiety symptoms (range = 0-117 with higher scores indicating more anxiety)
Self-injurious Thoughts and Behaviors Questionnairebaselinepercent of participants engaged in self-injury over the past year
Pediatric Symptom Checklist Internalizing Scalebaselineparent-reported internalizing symptoms (range = 0-10 with higher scores indicating more internalizing symptoms)
State Rumination3 weeks (i.e., immediately post-intervention)average state rumination during intervention period rated on a visual analog scale (range = 0-100 with higher scores indicating more rumination)
State Mood3 weeks (i.e., immediately post-intervention)average sadness and anxiety during intervention period rated on visual analog scales (range = 0-100 with higher scores indicating more rumination)
Daily App Use3 weeks (i.e., immediately post-intervention)Daily app use was determined by how many complete app uses were logged during the three-week intervention period.
Continued Use6 months post interventionNumber of times app was used after the 3 week intervention period
Children's Response Styles Questionnairebaselinetrait rumination (range = 0-39 with higher scores indicating more rumination)
Children's Depression Inventorybaselineself-reported depressive symptoms (range = 0-54 with higher scores indicating more symptoms)

Secondary

MeasureTime frameDescription
Five Facet Mindfulness Questionnaire Describing Subscalebaselinetrait mindfulness describing (range = 8-40 with higher scores indicating greater mindfulness)
Five Facet Mindfulness Questionnaire Awareness Subscalebaselinetrait mindfulness acting with awareness (range = 8-40 with higher scores indicating greater mindfulness)
Five Facet Mindfulness Questionnaire Nonjudging Subscalebaselinetrait mindfulness non-judging of inner experience (range = 8-40 with higher scores indicating greater mindfulness)
Five Facet Mindfulness Questionnaire Nonreactivity Subscalebaselinetrait mindfulness non-reactivity to inner experience (range = 7-35 with higher scores indicating greater mindfulness)
State Mindfulness Bodily Sensations3 weeks (i.e., immediately post-intervention)average focus on bodily sensations during intervention period rated on visual analog scale (range = 0-100 with higher scores indicating more mindfulness)
State Mindfulness Present Focus3 weeks (i.e., immediately post-intervention)average % focus on present moment (as opposed to past or future focus) during intervention period indicating more mindfulness
Five Facet Mindfulness Questionnaire Observing Subscalebaselinetrait mindfulness observing (range = 8-40 with higher scores indicating greater mindfulness)

Countries

United States

Participant flow

Participants by arm

ArmCount
Mindfulness App
Guided mindfulness exercises will be delivered via mobile app for three weeks. Mindfulness App: Mindfulness exercises will last 1-12 minutes. Each one asks participants to focus on something (e.g., breath, sounds, physical sensations) using guided instruction.
72
Control Condition
Participants will use app for assessment for three weeks, but no mindfulness exercises will be delivered.
80
Total152

Withdrawals & dropouts

PeriodReasonFG000FG001
Six Month Follow-upLost to Follow-up43
Six Month Follow-upWithdrawal by Subject11
Six Week Follow-upLost to Follow-up10
Six Week Follow-upWithdrawal by Subject10
Twelve Week Follow-upAdverse Event11
Twelve Week Follow-upLost to Follow-up02
Twelve Week Follow-upWithdrawal by Subject01

Baseline characteristics

CharacteristicMindfulness AppControl ConditionTotal
Age, Continuous13.78 years
STANDARD_DEVIATION 0.93
13.66 years
STANDARD_DEVIATION 0.86
13.71 years
STANDARD_DEVIATION 0.89
Children's Depression Inventory13.4 units on a scale
STANDARD_DEVIATION 8.77
12.04 units on a scale
STANDARD_DEVIATION 7.72
12.68 units on a scale
STANDARD_DEVIATION 8.23
Children's Response Styles Questionnaire33.47 units on a scale
STANDARD_DEVIATION 9.64
30.73 units on a scale
STANDARD_DEVIATION 9.05
32.03 units on a scale
STANDARD_DEVIATION 9.4
Ethnicity (NIH/OMB)
Hispanic or Latino
9 Participants7 Participants16 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
63 Participants73 Participants136 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Five Facet Mindfulness Questionnaire Awareness Subscale25.03 units on a scale
STANDARD_DEVIATION 6.23
26.17 units on a scale
STANDARD_DEVIATION 5.84
25.63 units on a scale
STANDARD_DEVIATION 6.04
Five Facet Mindfulness Questionnaire Describing Subscale24.26 units on a scale
STANDARD_DEVIATION 5.75
24.69 units on a scale
STANDARD_DEVIATION 5.75
24.49 units on a scale
STANDARD_DEVIATION 5.74
Five Facet Mindfulness Questionnaire Nonjudging Subscale25.56 units on a scale
STANDARD_DEVIATION 7.46
27.49 units on a scale
STANDARD_DEVIATION 7.58
26.57 units on a scale
STANDARD_DEVIATION 7.561
Five Facet Mindfulness Questionnaire Nonreactivity Subscale19.58 units on a scale
STANDARD_DEVIATION 4.58
19.44 units on a scale
STANDARD_DEVIATION 3.99
19.51 units on a scale
STANDARD_DEVIATION 4.268
Five Facet Mindfulness Questionnaire Observing Subscale22.28 units on a scale
STANDARD_DEVIATION 6.23
21.38 units on a scale
STANDARD_DEVIATION 6.2
21.80 units on a scale
STANDARD_DEVIATION 6.206
Multidimensional Anxiety Scale for Children53.47 units on a scale
STANDARD_DEVIATION 16.51
50.84 units on a scale
STANDARD_DEVIATION 17.35
52.09 units on a scale
STANDARD_DEVIATION 16.95
Pediatric Symptom Checklist Internalizing Scale3.64 units on a scale
STANDARD_DEVIATION 2.38
3.88 units on a scale
STANDARD_DEVIATION 2.45
3.76 units on a scale
STANDARD_DEVIATION 2.411
Race/Ethnicity, Customized
Race
Asian; Asian American
1 Participants2 Participants3 Participants
Race/Ethnicity, Customized
Race
Black; African American
3 Participants2 Participants5 Participants
Race/Ethnicity, Customized
Race
Multi-racial
11 Participants5 Participants16 Participants
Race/Ethnicity, Customized
Race
Native American
0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
Race
Native Hawaiian or Pacific Islander
1 Participants0 Participants1 Participants
Race/Ethnicity, Customized
Race
Other
1 Participants1 Participants2 Participants
Race/Ethnicity, Customized
Race
White
55 Participants70 Participants125 Participants
Region of Enrollment
United States
72 participants80 participants152 participants
Self-injurious Thoughts and Behaviors Questionnaire11 Participants11 Participants22 Participants
Sex/Gender, Customized
Female
44 Participants45 Participants89 Participants
Sex/Gender, Customized
Male
28 Participants35 Participants63 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 720 / 80
other
Total, other adverse events
8 / 725 / 80
serious
Total, serious adverse events
1 / 720 / 80

Outcome results

Primary

Children's Depression Inventory

self-reported depressive symptoms (range = 0-54 with higher scores indicating more symptoms)

Time frame: 12 weeks post intervention

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppChildren's Depression Inventory9.33 score on a scaleStandard Deviation 7.97
Control ConditionChildren's Depression Inventory10.54 score on a scaleStandard Deviation 8.57
Primary

Children's Depression Inventory

self-reported depressive symptoms (range = 0-54 with higher scores indicating more symptoms)

Time frame: baseline

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppChildren's Depression Inventory13.4 score on a scaleStandard Deviation 8.77
Control ConditionChildren's Depression Inventory12.04 score on a scaleStandard Deviation 7.72
Primary

Children's Depression Inventory

self-reported depressive symptoms (range = 0-54 with higher scores indicating more symptoms)

Time frame: 3 weeks (immediately post-intervention)

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppChildren's Depression Inventory11.52 score on a scaleStandard Deviation 9.54
Control ConditionChildren's Depression Inventory12.22 score on a scaleStandard Deviation 8.57
Primary

Children's Depression Inventory

self-reported depressive symptoms (range = 0-54 with higher scores indicating more symptoms)

Time frame: 6 months post intervention

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppChildren's Depression Inventory8.84 score on a scaleStandard Deviation 8.02
Control ConditionChildren's Depression Inventory10.42 score on a scaleStandard Deviation 8.97
Primary

Children's Depression Inventory

self-reported depressive symptoms (range = 0-54 with higher scores indicating more symptoms)

Time frame: 6 weeks post intervention

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppChildren's Depression Inventory10.68 score on a scaleStandard Deviation 9.04
Control ConditionChildren's Depression Inventory10.82 score on a scaleStandard Deviation 8.23
Primary

Children's Response Styles Questionnaire

trait rumination (range = 0-39 with higher scores indicating more rumination)

Time frame: 12 weeks post intervention

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppChildren's Response Styles Questionnaire29.27 score on a scaleStandard Deviation 10.22
Control ConditionChildren's Response Styles Questionnaire28.45 score on a scaleStandard Deviation 9.8
Primary

Children's Response Styles Questionnaire

trait rumination (range = 0-39 with higher scores indicating more rumination)

Time frame: baseline

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppChildren's Response Styles Questionnaire33.47 score on a scaleStandard Deviation 9.64
Control ConditionChildren's Response Styles Questionnaire30.73 score on a scaleStandard Deviation 9.05
Primary

Children's Response Styles Questionnaire

trait rumination (range = 0-39 with higher scores indicating more rumination)

Time frame: 6 months post intervention

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppChildren's Response Styles Questionnaire29.4 score on a scaleStandard Deviation 10.79
Control ConditionChildren's Response Styles Questionnaire29.77 score on a scaleStandard Deviation 10.05
Primary

Children's Response Styles Questionnaire

trait rumination (range = 0-39 with higher scores indicating more rumination)

Time frame: 6 weeks post intervention

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppChildren's Response Styles Questionnaire27.71 score on a scaleStandard Deviation 9.46
Control ConditionChildren's Response Styles Questionnaire29.17 score on a scaleStandard Deviation 10.64
Primary

Children's Response Styles Questionnaire

trait rumination (range = 0-39 with higher scores indicating more rumination)

Time frame: 3 weeks (i.e., immediately post-intervention)

Population: Number analyzed determined by number of adolescents that completed the questionnaire.

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppChildren's Response Styles Questionnaire29.48 score on a scaleStandard Deviation 9.89
Control ConditionChildren's Response Styles Questionnaire30.76 score on a scaleStandard Deviation 10.12
Primary

Continued Use

Number of times app was used after the 3 week intervention period

Time frame: 6 months post intervention

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppContinued Use40.24 number of app usesStandard Deviation 78.98
Control ConditionContinued Use39.74 number of app usesStandard Deviation 70.22
Primary

Daily App Use

Daily app use was determined by how many complete app uses were logged during the three-week intervention period.

Time frame: 3 weeks (i.e., immediately post-intervention)

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppDaily App Use51.72 App usesStandard Deviation 16.37
Control ConditionDaily App Use54.26 App usesStandard Deviation 15.26
Primary

Ease of Use

how easy app was to use (range = 1-7 with higher being easier to use)

Time frame: 3 weeks (i.e., immediately post-intervention)

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppEase of Use6.13 units on a scaleStandard Deviation 1.19
Control ConditionEase of Use6.27 units on a scaleStandard Deviation 1.07
Primary

Multidimensional Anxiety Scale for Children

self-reported anxiety symptoms (range = 0-117 with higher scores indicating more anxiety)

Time frame: 6 months post intervention

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppMultidimensional Anxiety Scale for Children49.29 score on a scaleStandard Deviation 16.74
Control ConditionMultidimensional Anxiety Scale for Children49.56 score on a scaleStandard Deviation 20.58
Primary

Multidimensional Anxiety Scale for Children

self-reported anxiety symptoms (range = 0-117 with higher scores indicating more anxiety)

Time frame: baseline

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppMultidimensional Anxiety Scale for Children53.47 score on a scaleStandard Deviation 16.51
Control ConditionMultidimensional Anxiety Scale for Children50.84 score on a scaleStandard Deviation 17.35
Primary

Multidimensional Anxiety Scale for Children

self-reported anxiety symptoms (range = 0-117 with higher scores indicating more anxiety)

Time frame: 3 weeks (i.e., immediately post-intervention)

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppMultidimensional Anxiety Scale for Children50.94 score on a scaleStandard Deviation 16.82
Control ConditionMultidimensional Anxiety Scale for Children52.37 score on a scaleStandard Deviation 17.64
Primary

Multidimensional Anxiety Scale for Children

self-reported anxiety symptoms (range = 0-117 with higher scores indicating more anxiety)

Time frame: 6 weeks post intervention

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppMultidimensional Anxiety Scale for Children51.00 score on a scaleStandard Deviation 16.52
Control ConditionMultidimensional Anxiety Scale for Children49.88 score on a scaleStandard Deviation 19.25
Primary

Multidimensional Anxiety Scale for Children

self-reported anxiety symptoms (range = 0-117 with higher scores indicating more anxiety)

Time frame: 12 weeks post intervention

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppMultidimensional Anxiety Scale for Children50.34 score on a scaleStandard Deviation 18.18
Control ConditionMultidimensional Anxiety Scale for Children49.82 score on a scaleStandard Deviation 19.11
Primary

Pediatric Symptom Checklist Internalizing Scale

parent-reported internalizing symptoms (range = 0-10 with higher scores indicating more internalizing symptoms)

Time frame: baseline

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppPediatric Symptom Checklist Internalizing Scale3.64 score on a scaleStandard Deviation 2.38
Control ConditionPediatric Symptom Checklist Internalizing Scale3.88 score on a scaleStandard Deviation 2.45
Primary

Pediatric Symptom Checklist Internalizing Scale

parent-reported internalizing symptoms (range = 0-10 with higher scores indicating more internalizing symptoms)

Time frame: 3 weeks (i.e., immediately post-intervention)

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppPediatric Symptom Checklist Internalizing Scale2.49 score on a scaleStandard Deviation 2.21
Control ConditionPediatric Symptom Checklist Internalizing Scale2.46 score on a scaleStandard Deviation 1.99
Primary

Pediatric Symptom Checklist Internalizing Scale

parent-reported internalizing symptoms (range = 0-10 with higher scores indicating more internalizing symptoms)

Time frame: 6 weeks post intervention

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppPediatric Symptom Checklist Internalizing Scale2.38 score on a scaleStandard Deviation 2.05
Control ConditionPediatric Symptom Checklist Internalizing Scale2.41 score on a scaleStandard Deviation 2.09
Primary

Pediatric Symptom Checklist Internalizing Scale

parent-reported internalizing symptoms (range = 0-10 with higher scores indicating more internalizing symptoms)

Time frame: 12 weeks post intervention

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppPediatric Symptom Checklist Internalizing Scale2.49 score on a scaleStandard Deviation 2.14
Control ConditionPediatric Symptom Checklist Internalizing Scale2.35 score on a scaleStandard Deviation 2.14
Primary

Pediatric Symptom Checklist Internalizing Scale

parent-reported internalizing symptoms (range = 0-10 with higher scores indicating more internalizing symptoms)

Time frame: 6 months post intervention

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppPediatric Symptom Checklist Internalizing Scale2.38 score on a scaleStandard Deviation 1.96
Control ConditionPediatric Symptom Checklist Internalizing Scale2.68 score on a scaleStandard Deviation 2.26
Primary

Self-injurious Thoughts and Behaviors Questionnaire

percent of time engaged in self-injury over the past 3 months

Time frame: 6 months post intervention

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Mindfulness AppSelf-injurious Thoughts and Behaviors Questionnaire3 Participants
Control ConditionSelf-injurious Thoughts and Behaviors Questionnaire2 Participants
Primary

Self-injurious Thoughts and Behaviors Questionnaire

percent of time engaged in self-injury over the past 6 weeks

Time frame: 12 weeks post intervention

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Mindfulness AppSelf-injurious Thoughts and Behaviors Questionnaire2 Participants
Control ConditionSelf-injurious Thoughts and Behaviors Questionnaire1 Participants
Primary

Self-injurious Thoughts and Behaviors Questionnaire

percent of participants that engaged in self-injury over the past 6 weeks

Time frame: 6 weeks post intervention

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Mindfulness AppSelf-injurious Thoughts and Behaviors Questionnaire3 Participants
Control ConditionSelf-injurious Thoughts and Behaviors Questionnaire3 Participants
Primary

Self-injurious Thoughts and Behaviors Questionnaire

percent of participants that engaged in self-injury over the past 3 weeks

Time frame: 3 weeks (i.e., immediately post-intervention)

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Mindfulness AppSelf-injurious Thoughts and Behaviors Questionnaire1 Participants
Control ConditionSelf-injurious Thoughts and Behaviors Questionnaire2 Participants
Primary

Self-injurious Thoughts and Behaviors Questionnaire

percent of participants engaged in self-injury over the past year

Time frame: baseline

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Mindfulness AppSelf-injurious Thoughts and Behaviors Questionnaire7 Participants
Control ConditionSelf-injurious Thoughts and Behaviors Questionnaire7 Participants
Primary

State Mood

average sadness and anxiety during intervention period rated on visual analog scales (range = 0-100 with higher scores indicating more rumination)

Time frame: 3 weeks (i.e., immediately post-intervention)

ArmMeasureGroupValue (MEAN)Dispersion
Mindfulness AppState MoodAnxiety36.62 units on a scaleStandard Deviation 19.35
Mindfulness AppState MoodSadness25.00 units on a scaleStandard Deviation 17.72
Control ConditionState MoodAnxiety39.08 units on a scaleStandard Deviation 20.05
Control ConditionState MoodSadness25.02 units on a scaleStandard Deviation 14.1
Primary

State Rumination

average state rumination during intervention period rated on a visual analog scale (range = 0-100 with higher scores indicating more rumination)

Time frame: 3 weeks (i.e., immediately post-intervention)

ArmMeasureGroupValue (MEAN)Dispersion
Mindfulness AppState RuminationEmotion-Focused Rumination41.88 units on a scaleStandard Deviation 20.44
Mindfulness AppState RuminationProblem-Focused Rumination34.80 units on a scaleStandard Deviation 18.47
Control ConditionState RuminationEmotion-Focused Rumination42.53 units on a scaleStandard Deviation 20.17
Control ConditionState RuminationProblem-Focused Rumination37.58 units on a scaleStandard Deviation 18.69
Secondary

Five Facet Mindfulness Questionnaire Awareness Subscale

trait mindfulness acting with awareness (range = 8-40 with higher scores indicating greater mindfulness)

Time frame: baseline

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppFive Facet Mindfulness Questionnaire Awareness Subscale25.03 score on a scaleStandard Deviation 6.23
Control ConditionFive Facet Mindfulness Questionnaire Awareness Subscale26.18 score on a scaleStandard Deviation 5.84
Secondary

Five Facet Mindfulness Questionnaire Awareness Subscale

trait mindfulness acting with awareness (range = 8-40 with higher scores indicating greater mindfulness)

Time frame: 3 weeks (i.e., immediately post-intervention)

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppFive Facet Mindfulness Questionnaire Awareness Subscale25.42 score on a scaleStandard Deviation 6.55
Control ConditionFive Facet Mindfulness Questionnaire Awareness Subscale24.94 score on a scaleStandard Deviation 6.41
Secondary

Five Facet Mindfulness Questionnaire Awareness Subscale

trait mindfulness acting with awareness (range = 8-40 with higher scores indicating greater mindfulness)

Time frame: 6 weeks post intervention

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppFive Facet Mindfulness Questionnaire Awareness Subscale25.12 score on a scaleStandard Deviation 6.34
Control ConditionFive Facet Mindfulness Questionnaire Awareness Subscale25.7 score on a scaleStandard Deviation 5.42
Secondary

Five Facet Mindfulness Questionnaire Awareness Subscale

trait mindfulness acting with awareness (range = 8-40 with higher scores indicating greater mindfulness)

Time frame: 12 weeks post intervention

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppFive Facet Mindfulness Questionnaire Awareness Subscale24.98 score on a scaleStandard Deviation 5.9
Control ConditionFive Facet Mindfulness Questionnaire Awareness Subscale25.27 score on a scaleStandard Deviation 5.62
Secondary

Five Facet Mindfulness Questionnaire Awareness Subscale

trait mindfulness acting with awareness (range = 8-40 with higher scores indicating greater mindfulness)

Time frame: 6 months post intervention

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppFive Facet Mindfulness Questionnaire Awareness Subscale25.43 score on a scaleStandard Deviation 6.25
Control ConditionFive Facet Mindfulness Questionnaire Awareness Subscale26.07 score on a scaleStandard Deviation 6.32
Secondary

Five Facet Mindfulness Questionnaire Describing Subscale

trait mindfulness describing (range = 8-40 with higher scores indicating greater mindfulness)

Time frame: 6 weeks post intervention

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppFive Facet Mindfulness Questionnaire Describing Subscale25.17 score on a scaleStandard Deviation 6.17
Control ConditionFive Facet Mindfulness Questionnaire Describing Subscale25.25 score on a scaleStandard Deviation 5.35
Secondary

Five Facet Mindfulness Questionnaire Describing Subscale

trait mindfulness describing (range = 8-40 with higher scores indicating greater mindfulness)

Time frame: baseline

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppFive Facet Mindfulness Questionnaire Describing Subscale24.26 score on a scaleStandard Deviation 5.75
Control ConditionFive Facet Mindfulness Questionnaire Describing Subscale24.69 score on a scaleStandard Deviation 5.75
Secondary

Five Facet Mindfulness Questionnaire Describing Subscale

trait mindfulness describing (range = 8-40 with higher scores indicating greater mindfulness)

Time frame: 3 weeks (i.e., immediately post-intervention)

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppFive Facet Mindfulness Questionnaire Describing Subscale25 score on a scaleStandard Deviation 5.98
Control ConditionFive Facet Mindfulness Questionnaire Describing Subscale23.94 score on a scaleStandard Deviation 5.1
Secondary

Five Facet Mindfulness Questionnaire Describing Subscale

trait mindfulness describing (range = 8-40 with higher scores indicating greater mindfulness)

Time frame: 12 weeks post intervention

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppFive Facet Mindfulness Questionnaire Describing Subscale25.55 score on a scaleStandard Deviation 5.96
Control ConditionFive Facet Mindfulness Questionnaire Describing Subscale24.3 score on a scaleStandard Deviation 5.41
Secondary

Five Facet Mindfulness Questionnaire Describing Subscale

trait mindfulness describing (range = 8-40 with higher scores indicating greater mindfulness)

Time frame: 6 months post intervention

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppFive Facet Mindfulness Questionnaire Describing Subscale25.56 score on a scaleStandard Deviation 6.16
Control ConditionFive Facet Mindfulness Questionnaire Describing Subscale24.97 score on a scaleStandard Deviation 5.54
Secondary

Five Facet Mindfulness Questionnaire Nonjudging Subscale

trait mindfulness non-judging of inner experience (range = 8-40 with higher scores indicating greater mindfulness)

Time frame: 6 weeks post intervention

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppFive Facet Mindfulness Questionnaire Nonjudging Subscale28.23 score on a scaleStandard Deviation 7.23
Control ConditionFive Facet Mindfulness Questionnaire Nonjudging Subscale27.93 score on a scaleStandard Deviation 6.94
Secondary

Five Facet Mindfulness Questionnaire Nonjudging Subscale

trait mindfulness non-judging of inner experience (range = 8-40 with higher scores indicating greater mindfulness)

Time frame: baseline

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppFive Facet Mindfulness Questionnaire Nonjudging Subscale25.56 score on a scaleStandard Deviation 7.46
Control ConditionFive Facet Mindfulness Questionnaire Nonjudging Subscale27.49 score on a scaleStandard Deviation 7.58
Secondary

Five Facet Mindfulness Questionnaire Nonjudging Subscale

trait mindfulness non-judging of inner experience (range = 8-40 with higher scores indicating greater mindfulness)

Time frame: 3 weeks (i.e., immediately post-intervention)

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppFive Facet Mindfulness Questionnaire Nonjudging Subscale27.86 score on a scaleStandard Deviation 6.79
Control ConditionFive Facet Mindfulness Questionnaire Nonjudging Subscale27.05 score on a scaleStandard Deviation 7.52
Secondary

Five Facet Mindfulness Questionnaire Nonjudging Subscale

trait mindfulness non-judging of inner experience (range = 8-40 with higher scores indicating greater mindfulness)

Time frame: 12 weeks post intervention

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppFive Facet Mindfulness Questionnaire Nonjudging Subscale27.88 score on a scaleStandard Deviation 7.4
Control ConditionFive Facet Mindfulness Questionnaire Nonjudging Subscale27.74 score on a scaleStandard Deviation 7.15
Secondary

Five Facet Mindfulness Questionnaire Nonjudging Subscale

trait mindfulness non-judging of inner experience (range = 8-40 with higher scores indicating greater mindfulness)

Time frame: 6 months post intervention

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppFive Facet Mindfulness Questionnaire Nonjudging Subscale28.87 score on a scaleStandard Deviation 7.45
Control ConditionFive Facet Mindfulness Questionnaire Nonjudging Subscale28.01 score on a scaleStandard Deviation 6.72
Secondary

Five Facet Mindfulness Questionnaire Nonreactivity Subscale

trait mindfulness non-reactivity to inner experience (range = 7-35 with higher scores indicating greater mindfulness)

Time frame: 6 weeks post intervention)

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppFive Facet Mindfulness Questionnaire Nonreactivity Subscale20.72 score on a scaleStandard Deviation 5.61
Control ConditionFive Facet Mindfulness Questionnaire Nonreactivity Subscale19.65 score on a scaleStandard Deviation 4.26
Secondary

Five Facet Mindfulness Questionnaire Nonreactivity Subscale

trait mindfulness non-reactivity to inner experience (range = 7-35 with higher scores indicating greater mindfulness)

Time frame: 6 months post intervention)

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppFive Facet Mindfulness Questionnaire Nonreactivity Subscale21.3 score on a scaleStandard Deviation 4.67
Control ConditionFive Facet Mindfulness Questionnaire Nonreactivity Subscale20.03 score on a scaleStandard Deviation 4.52
Secondary

Five Facet Mindfulness Questionnaire Nonreactivity Subscale

trait mindfulness non-reactivity to inner experience (range = 7-35 with higher scores indicating greater mindfulness)

Time frame: 12 weeks post intervention)

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppFive Facet Mindfulness Questionnaire Nonreactivity Subscale21.19 score on a scaleStandard Deviation 4.16
Control ConditionFive Facet Mindfulness Questionnaire Nonreactivity Subscale20.14 score on a scaleStandard Deviation 3.86
Secondary

Five Facet Mindfulness Questionnaire Nonreactivity Subscale

trait mindfulness non-reactivity to inner experience (range = 7-35 with higher scores indicating greater mindfulness)

Time frame: 3 weeks (i.e., immediately post-intervention)

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppFive Facet Mindfulness Questionnaire Nonreactivity Subscale20.09 score on a scaleStandard Deviation 4.64
Control ConditionFive Facet Mindfulness Questionnaire Nonreactivity Subscale19.72 score on a scaleStandard Deviation 4.34
Secondary

Five Facet Mindfulness Questionnaire Nonreactivity Subscale

trait mindfulness non-reactivity to inner experience (range = 7-35 with higher scores indicating greater mindfulness)

Time frame: baseline

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppFive Facet Mindfulness Questionnaire Nonreactivity Subscale19.58 score on a scaleStandard Deviation 4.58
Control ConditionFive Facet Mindfulness Questionnaire Nonreactivity Subscale19.44 score on a scaleStandard Deviation 3.99
Secondary

Five Facet Mindfulness Questionnaire Observing Subscale

trait mindfulness observing (range = 8-40 with higher scores indicating greater mindfulness)

Time frame: 3 weeks (i.e., immediately post-intervention)

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppFive Facet Mindfulness Questionnaire Observing Subscale22.66 score on a scaleStandard Deviation 6.39
Control ConditionFive Facet Mindfulness Questionnaire Observing Subscale22.05 score on a scaleStandard Deviation 6.22
Secondary

Five Facet Mindfulness Questionnaire Observing Subscale

trait mindfulness observing (range = 8-40 with higher scores indicating greater mindfulness)

Time frame: baseline

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppFive Facet Mindfulness Questionnaire Observing Subscale22.28 score on a scaleStandard Deviation 6.23
Control ConditionFive Facet Mindfulness Questionnaire Observing Subscale21.38 score on a scaleStandard Deviation 6.2
Secondary

Five Facet Mindfulness Questionnaire Observing Subscale

trait mindfulness observing (range = 8-40 with higher scores indicating greater mindfulness)

Time frame: 12 weeks post intervention

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppFive Facet Mindfulness Questionnaire Observing Subscale23.77 score on a scaleStandard Deviation 5.83
Control ConditionFive Facet Mindfulness Questionnaire Observing Subscale22.45 score on a scaleStandard Deviation 5.95
Secondary

Five Facet Mindfulness Questionnaire Observing Subscale

trait mindfulness observing (range = 8-40 with higher scores indicating greater mindfulness)

Time frame: 6 months post intervention

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppFive Facet Mindfulness Questionnaire Observing Subscale24.19 score on a scaleStandard Deviation 5.76
Control ConditionFive Facet Mindfulness Questionnaire Observing Subscale21.48 score on a scaleStandard Deviation 6.99
Secondary

Five Facet Mindfulness Questionnaire Observing Subscale

trait mindfulness observing (range = 8-40 with higher scores indicating greater mindfulness)

Time frame: 6 weeks post intervention

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppFive Facet Mindfulness Questionnaire Observing Subscale23.05 score on a scaleStandard Deviation 5.69
Control ConditionFive Facet Mindfulness Questionnaire Observing Subscale21.97 score on a scaleStandard Deviation 5.74
Secondary

State Mindfulness Bodily Sensations

average focus on bodily sensations during intervention period rated on visual analog scale (range = 0-100 with higher scores indicating more mindfulness)

Time frame: 3 weeks (i.e., immediately post-intervention)

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppState Mindfulness Bodily Sensations36.59 units on a scaleStandard Deviation 21.06
Control ConditionState Mindfulness Bodily Sensations38.67 units on a scaleStandard Deviation 21.35
Secondary

State Mindfulness Present Focus

average % focus on present moment (as opposed to past or future focus) during intervention period indicating more mindfulness

Time frame: 3 weeks (i.e., immediately post-intervention)

ArmMeasureValue (MEAN)Dispersion
Mindfulness AppState Mindfulness Present Focus.633 percentage of time focused on presentStandard Deviation 0.22
Control ConditionState Mindfulness Present Focus.558 percentage of time focused on presentStandard Deviation 0.23

Source: ClinicalTrials.gov · Data processed: Feb 10, 2026