Outcome
Type |
Measure |
Description |
Time frame |
Safety issue |
Primary |
Feasibility of the PP-based Health Behavior Intervention |
Feasibility will be measured by examining the number of completed exercises for individuals randomized to the Positive Psychology (PP)-based intervention. |
Change between baseline and 12 weeks |
|
Secondary |
Acceptability of the Exercises |
Participants receiving the PP-based health behavior intervention will provide ratings of ease and utility after each exercise, measured on a 10-point Likert scale. |
12 weeks |
|
Secondary |
Immediate Impact of the Exercises |
Participants receiving the PP-based health behavior intervention will provide ratings of optimism and positive affect, before and after each exercise, measured on a 10-point Likert scale. |
Weekly, up to 12 weeks |
|
Secondary |
Change in PANAS Scores (Primary Psychological Outcome) |
The positive affect items on the Positive and Negative Affect Schedule (PANAS), a well-validated scale used in other intervention trials and in patients with HF, will be used to measure positive affect (Range: 10-50). Change was calculated by subtracting the score at baseline from the score at 12 and 24 weeks. Higher scores indicate higher levels of positive affect. |
Baseline, 12 weeks, and 24 weeks |
|
Secondary |
Changes in LOT-R Scores |
Life Orientation Test-Revised (LOT-R) is a well-validated 6-item instrument used to measure dispositional optimism (Range: 0-24). Change was calculated by subtracting the score at baseline from the score at 12 and 24 weeks. Higher scores indicate higher levels of dispositional optimism. |
Baseline, 12 weeks, and 24 weeks |
|
Secondary |
Changes in SOM Scores |
The State Optimism Measure (SOM) will be used to measure state optimism (Range: 7-35). Change was calculated by subtracting the score at baseline from the score at 12 and 24 weeks. Higher scores indicate higher levels of state optimism. |
Baseline, 12 weeks, and 24 weeks |
|
Secondary |
Changes in HADS-Anxiety Subscale Scores |
The Hospital Anxiety and Depression Scale (HADS)-anxiety subscale was be used to measure anxiety. This is a well-validated scale with few somatic symptom items that can confound mood/anxiety assessment in medically-ill patients (Range: 0-21). Change was calculated by subtracting the score at baseline from the score at 12 weeks and 24 weeks. Higher scores indicate higher levels of anxiety. |
Baseline, 12 weeks, and 24 weeks |
|
Secondary |
Change in HADS-Depression Subscale Scores |
The Hospital Anxiety and Depression Scale (HADS)-depression subscale was be used to measure depression. This is a well-validated scale with few somatic symptom items that can confound mood/anxiety assessment in medically-ill patients (Range: 0-21). Change was calculated by subtracting the score at baseline from the score at 12 weeks and 24 weeks. Higher scores indicate higher levels of depression. |
Baseline, 12 weeks, and 24 weeks |
|
Secondary |
Changes in KCCQ Scores (Primary Functional Outcome) |
The Kansas City Cardiomyopathy Questionnaire (KCCQ) is a well-validated questionnaire of health status in HF. The full scale will be used to measure HF-specific health-related QoL (HRQoL), and an eight-question subset of the KCCQ will be used as a measure of HF symptoms (QoL score range: 0-100; total symptom score range: 0-100). Change was calculated by subtracting the score at baseline from the score at 12 weeks and 24 weeks. Higher QoL scores indicate better HF specific health-related QoL, and higher total symptom scores indicate fewer symptoms. |
Baseline, 12 weeks, and 24 weeks |
|
Secondary |
Changes in SF-12 Scores |
The Medical Outcomes Study Short Form-12 (SF-12) will be used to measure quality of life. This is an instrument which has been used in multiple cardiac studies in the past (SF-12 Mental Composite Score and Physical Composite Score Range: 0-100 each). Change was calculated by subtracting the score at baseline from the score at 12 weeks and 24 weeks. Higher scores indicate higher level of health related QoL. |
Baseline, 12 weeks, and 24 weeks |
|
Secondary |
Changes in MOS SAS Scores |
Three Medical Outcomes Study Specific Adherence Scale (MOS SAS) items assessing medication, diet, and exercise, will be measured individually and as a composite score (Range: 3-18). Change was calculated by subtracting the score at baseline from the score at 12 weeks and 24 weeks. Higher scores indicate better adherence to health behaviors. |
Baseline, 12 weeks, and 24 weeks |
|
Secondary |
Changes in Sodium Intake (as Measured With the SSQ) |
The Scored Sodium Questionnaire (SSQ) is a self-report scale that assesses the frequency with which participants consume a variety of sodium-containing foods, ranging from "Rarely or Never Eaten" to "At Least Once Daily." It is used to calculate daily sodium intake (Range: 0-215). Change was calculated by subtracting the score at baseline from the score at 12 weeks and 24 weeks. Higher scores indicate higher sodium intake. |
Baseline, 12 weeks, and 24 weeks |
|
Secondary |
Changes in Self-Reported Medication Adherence (SRMA) |
The Self-Reported Medication Adherence (SRMA) asks what percent of the time (in 10% increments) participants took all of their medications as prescribed in the past week and in the past 2 weeks (Range: 0-100). Change was calculated by subtracting the score at baseline from the score at 10 weeks. |
Baseline, 12 weeks and 24 weeks |
|
Secondary |
Change in Physical Activity |
Assessed by ActiGraph GT3X+ step counters which are validated as measures of physical activity and have been used in numerous studies of physical activity in patients with medical illness. We will measure both number of steps per day (primary physical health outcome). Change scores will be calculated by subtracting the number of steps per day at baseline from number of steps per day at 12 weeks and 24 weeks. |
Baseline, 12 weeks, and 24 weeks |
|
Secondary |
Change in Moderate to Vigorous Physical Activity |
Assessed with ActiGraph GT3X+ step counters, which are validated as measures of physical activity and have been used in numerous studies of physical activity in patients with medical illness. Change was calculated by subtracting the MVPA at baseline from the MVPA at 12 weeks and 24 weeks. |
Baseline, 12 weeks, and 24 weeks |
|
Secondary |
Feasibility of Actigraph |
Feasibility will be measured by examining the number of participants who provide adequate Actigraph data, defined in this study as at least 480 minutes for 5 days, at each time point. |
Baseline, 12 weeks and 24 weeks |
|