Outcome
Type |
Measure |
Description |
Time frame |
Safety issue |
Primary |
Number of participants recruited |
The number of participants recruited over 10-months will be compared against the following progression criterion to assess the feasibility of recruitment: Green: 40-50; Amber 24-39; Red: <24. |
10 months following the start of recruitment |
|
Primary |
Proportion of intervention group participants who attend at least half of the mindfulness booster course intervention sessions |
The proportion of participants who attend at least half of the intervention sessions will be compared against the following progression criterion to assess retention in the intervention: Green: =50%; Amber 25-49%; Red: <25%. |
Weeks 0 to 12 |
|
Primary |
Proportion of study participants who remain in the study |
The proportion of study participants who remain in the study will be compared against the following progression criterion to assess retention in the study: Green: =50%; Amber 25-49%; Red: <25%. |
Weeks 0 to 12 |
|
Primary |
Mindfulness booster course acceptability |
Response to Likert type questions and content analysis of qualitative data will be compared against the following progression criterion to assess retention in the study: Green: the majority of intervention participants report the intervention is acceptable as it is or with minor adjustments; Amber: there are inconsistent reports of acceptability or the intervention requires bigger adjustments; Red: the majority of intervention participants report the intervention is unacceptable or requires adjustments which cannot be completed |
Weeks 11 to 12 |
|
Primary |
Completion rate of the outcome measures |
The rate of the outcome measures completion will be compared against the following progression criterion to assess the feasibility of outcome measurement: Green: =60%; Amber 40-59%; Red: <40%. |
Weeks 0 to 12 |
|
Primary |
Estimate of between group effect size of the mindfulness booster intervention compared to control on the primary outcome measure of change in Perceived Stress Scale scores from baseline (weeks 0-1) to post-intervention (weeks 11-12). |
The estimated between group effect size of the mindfulness booster intervention compared to control on the primary outcome measure of change in Perceived Stress Scale scores from baseline (weeks 0-1) to post-intervention (weeks 11-12) will be compared against the following progression criterion to provide a preliminary indicator of effectiveness: Green: effect size in favour of intervention arm and 95% confidence interval for that effect size contains (or is greater than) the minimal clinically important difference found by Drachev et al. (2020). Amber: effect size is in favour of control, but the minimum clinically important difference is included in the 95% confidence interval; Red: effect size is in favour of control, and the minimum clinically important difference is not included in the 95% confidence interval. |
Weeks 11-12 |
|
Secondary |
Estimate of the between group effect size of the mindfulness booster intervention compared to control on change in the 8-item Patient Health Questionnaire (PHQ-8) from baseline (weeks 0-1) to post-intervention (weeks 11-12). |
The 8-item Patient Health Questionnaire (PHQ-8) is a self-report measure of depression, with higher scores indicating greater levels of depression symptoms. |
Weeks 11-12 |
|
Secondary |
Estimate of the between group effect size of the mindfulness booster intervention compared to control on change in the 7-item Generalised Anxiety Disorder Scale (GAD-7) from baseline (weeks 0-1) to post-intervention (weeks 11-12). |
The 7-item Generalised Anxiety Disorder Scale (GAD-7) is a self-report measure of generalised anxiety, with higher scores indicating greater levels of generalized anxiety symptoms. |
Weeks 11-12 |
|
Secondary |
Estimate of the between group effect size of the mindfulness booster intervention compared to control on change in the 15-item Five-Facet Mindfulness Questionnaire (FFMQ-15) from baseline (weeks 0-1) to post-intervention (weeks 11-12). |
The 15-item Five-Facet Mindfulness Questionnaire (FFMQ-15) is a self-report measure of mindfulness, with higher scores indicating greater levels of mindfulness. |
Weeks 11-12 |
|
Secondary |
Estimate of the between group effect size of the mindfulness booster intervention compared to control on change in the Brief Sussex Oxford Compassion to Self Scale (SOCS-S) from baseline (weeks 0-1) to post-intervention (weeks 11-12). |
The Brief Sussex Oxford Compassion to Self Scale (SOCS-S) is a self-report measure of self-compassion, with higher scores indicating greater levels of self-compassion. |
Weeks 11-12 |
|
Secondary |
Estimate of the between group effect size of the mindfulness booster intervention compared to control on change in the Brief Compassion for Others Scale (SOCS-O) from baseline (weeks 0-1) to post-intervention (weeks 11-12). |
The Brief Compassion for Others Scale (SOCS-O) is a self-report measure of compassion for others, with higher scores indicating greater levels of compassion. |
Weeks 11-12 |
|
Secondary |
Estimate of the between group effect size of the mindfulness booster intervention compared to control on change in the Short Warwick-Edinburgh Mental Wellbeing Scale (SWEMWS) from baseline (weeks 0-1) to post-intervention (weeks 11-12). |
The Short Warwick-Edinburgh Mental Wellbeing Scale (SWEMWS) is a self-report measure of mental wellbeing, with higher scores indicating greater levels of mental wellbeing. |
Weeks 11-12 |
|
Secondary |
Estimate of the between group effect size of the mindfulness booster intervention compared to control on change in the Sussex Burnout Scale (SBS) from baseline (weeks 0-1) to post-intervention (weeks 11-12). |
The Sussex Burnout Scale (SBS) is a self-report measure of burnout, with higher scores indicating greater levels of burnout. |
Weeks 11-12 |
|