Outcome
Type |
Measure |
Description |
Time frame |
Safety issue |
Other |
Composite measures |
If the primary and secondary outcomes surprisingly do not show difference of statistical significance and clinical relevance, the study data will be searched for composite measures showing clinically and statistical relevance |
58 weeks |
|
Primary |
Change in Cardiac Anxiety Questionnaire (CAQ) |
CAQ is an 18-item self-report-questionnaire which measures hearth related anxiety/fear, attention, avoidance and safety seeking behavior. Each item is rated on a five-point Likert scale ranging from 0 to 4. Total range 0-72 where higher score represents more symptoms. Primary outcome is difference in mean score between intervention arm and control arm for CAQ at end of treatment (6 weeks after randomization for both arms). Difference in mean scores between arms will also be assessed at pretreatment/baseline, and at 3 months and 12 months after end of treatment (18 weeks and 58 weeks after randomization). There is no predefined clinical relevant effect for this measure, we use a distribution based method and define clinical relevant effect as improvement of more than 0.5 standard deviation compared to baseline. |
58 weeks |
|
Primary |
Change in Body Sensations Questionnaire (BSQ) |
BSQ is an 17-item self-report-questionnaire which measures fear of different bodily sensations. Each item is rated on a five-point Likert scale ranging from 1 to 5. Total range 17-85 where higher score represents more symptoms. Primary outcome is difference in mean score between intervention arm and control arm for BSQ at end of treatment (6 weeks after randomization for both arms). Difference in mean scores between arms will also be assessed at pretreatment/baseline, and at 3 months and 12 months after end of treatment (18 weeks and 58 weeks after randomization). There is no predefined clinical relevant effect for this measure, we use a distribution based method and define clinical relevant effect as improvement of more than 0.5 standard deviation compared to baseline. |
58 weeks |
|
Secondary |
Change in Brief Illness Perception Questionnaire (BIPQ) |
BIPQ is an 8-item self-report-questionnaire which assess the patient's perception/beliefs about their symptoms. Each item is rated on a 0-10 scale. The items represent different components/dimensions. Secondary outcome is difference in mean score between intervention arm and control arm for item 1, 5, 6 and 8 at end of treatment (6 weeks after randomization for both arms). Difference in mean scores between arms will also be assessed for item 1, 5, 6 and 8 at pretreatment/baseline, and at 3 months and 12 months after end of treatment (18 weeks and 58 weeks after randomization). There is no predefined clinical relevant effect for these items, we use a distribution based method and define clinical relevant effect as improvement of more than 0.5 standard deviation compared to baseline. |
58 weeks |
|
Secondary |
Change in Patient Health Questionnaire (PHQ-9) |
PHQ-9 is an 9 item self-report-questionnaire which assess depression symptoms. Each item is rated on a 0-3 scale. Total range 0-27 where higher score represents more symptoms. Secondary outcome is difference in mean score between intervention arm and control arm for PHQ-9 at end of treatment (6 weeks after randomization for both arms). Difference in mean scores between arms will also be assessed at pretreatment/baseline, and at 3 months and 12 months after end of treatment (18 weeks and 58 weeks after randomization). We define clinical relevant effect as an absolute drop of 5 points on an individual level, and between groups as an improvement of 3 points. |
58 weeks |
|
Secondary |
Change in General perceived Self-Efficacy Scale |
GSE is an 10 item self-report-questionnaire which assess self-efficacy. Each item is rated on a 1-4 Lickert scale. Total range 10-40 where higher score represents more self-efficacy. Secondary outcome is difference in mean score between intervention arm and control arm for GSE at end of treatment (6 weeks after randomization for both arms). Difference in mean scores between arms will also be assessed at pretreatment/baseline, and at 3 months and 12 months after end of treatment (18 weeks and 58 weeks after randomization). There is no predefined clinical relevant effect for this measure, we use a distribution based method and define clinical relevant effect as improvement of more than 0.5 standard deviation compared to baseline. We will also investigate its ability to predict treatment effect. |
58 weeks |
|
Secondary |
Change in EQ-5D-5L |
EQ-5D-5L is an 5 item (plus a VAS scale) self-report-questionnaire assessing health related quality of life. Secondary outcome is difference in mean score between intervention arm and control arm for EQ-5D-5L at end of treatment (6 weeks after randomization for both arms). Difference in mean scores between arms will also be assessed at pretreatment/baseline, and at 3 months and 12 months after end of treatment (18 weeks and 58 weeks after randomization). Distribution based methods are commonly used, defining improvement of 0.2 or 0.5 SD as clinical relevant. We define a minimal clinical relevant improvement to be 0.2 SD in EQ-5D-5L. |
58 weeks |
|
Secondary |
Health care costs |
Secondary outcome is to calculate the difference in healthcare utilization between intervention and control arm over a period of 12 months after end of treatment. We will collect data on both direct and indirect costs with self-report forms collected every third month, as well as register data. We will compare the costs between the two arms. |
58 weeks |
|