Outcome
Type |
Measure |
Description |
Time frame |
Safety issue |
Other |
Economic evaluation: Five-Level Version of the EQ-5D (EQ-5D-5L) |
The intervention will be economically evaluated using the Five-Level Version of the EQ-5D (EQ-5D-5L). Five dimensions are assessed in 5 items: mobility, self-care, usual activities, pain/discomfort and anxiety/depression. A 5-point Likert scale ranging from "no problems" to "extreme problems" is applied, with higher scores corresponding with more problems in a HR-QoL dimension. The 5 dimensions can be summed into a health state. Utility values can be calculated for these health states. |
Baseline, immediately after the intervention, at 3 months follow-up. |
|
Other |
Economic evaluation: iMTA Medical Consumption Questionnaire (iMCQ) |
The intervention will be economically evaluated using the iMTA Medical Consumption Questionnaire (iMCQ). The iMCQ measures health-care utilization. |
Baseline, immediately after the intervention, at 3 months follow-up. |
|
Other |
Economic evaluation: iMTA Productivity Cost Questionnaire (iPCQ) |
The intervention will be economically evaluated using the iMTA Productivity Cost Questionnaire (iPCQ). In this questionnaire, productivity losses are measured in three modules, so that specific types of productivity losses can be left out when these are not applicable to a specific population. |
Baseline, immediately after the intervention, at 3 months follow-up. |
|
Other |
Patient satisfaction |
After the intervention period, patient satisfaction and experience with the intervention, and perceived effect of the intervention will be evaluated with an evaluation questionnaire consisting of various numerical rating scales, Likert scales and open questions. |
Immediately after the intervention. |
|
Other |
Expected/perceived patient-provider interaction |
The expected/perceived patient-provider interaction will be measured with the Internet-specific Therapeutic Relationship Questionnaire (ITRQ). The ITRQ consists of 10 items rated on a 10-point Likert scale ranging from "totally disagree" to "completely agree". It comprises two scales (Internet-specific Time and Attention and Internet-specific Reflection and Comfort) and a total score. Higher scores indicate a stronger therapeutic relationship. |
Baseline and immediately after the intervention. |
|
Primary |
Change in pain coping |
A visual analogue scale (VAS) from 0 to 10 will be used to assess pain coping, with higher scores indicating better pain coping. The primary endpoint is the difference in change in pain coping between patients in the intervention and control condition from baseline to post-intervention (immediately after the intervention). |
Baseline, immediately after the intervention, at 6 weeks and 3 months follow-up. |
|
Secondary |
Change in well-being |
A VAS from 0 to 10 will be used to assess well-being, with higher scores indicating better well-being. |
Baseline, immediately after the intervention, at 6 weeks and 3 months follow-up. |
|
Secondary |
Change in illness cognitions |
Illness cognitions will be measured by the Illness Cognition Questionnaire (ICQ) (specifically, Helplessness and Acceptance scales). Items are scored on a 4-point Likert scale ranging from "not at all" to "completely". Higher scale scores indicate greater use of the measured construct. |
Baseline, immediately after the intervention, at 6 weeks and 3 months follow-up. |
|
Secondary |
Change in pain coping strategies |
Pain coping strategies will be measured by the Pain Coping Inventory (PCI). The questionnaire consists of six scales; Pain Transformation, Distraction, and Reducing Demands are characterized as active pain coping strategies, and Retreating, Worrying, and Resting are classified as passive pain coping strategies. Items are scored on a 4-point Likert scale ranging from "hardly ever" to "very often", with higher scale scores indicate greater use of the measured coping strategy. |
Baseline, immediately after the intervention, at 6 weeks and 3 months follow-up. |
|
Secondary |
Change in illness perceptions |
Illness perceptions will be measured by the Illness Perception Questionnaire (IPQ-R). The Identity scale consists of the sum of yes-rated items (whether patients believe certain symptoms to be related to their illness). Furthermore, the Timeline Acute/Chronic, Timeline Cyclical, Consequences, Illness Coherence, Personal Control, Treatment Control, and Emotional Representations scales are rated on a 5-point Likert type scale ranging from "strongly disagree" to "strongly agree". High scores on the Identity, Timeline Acute/Chronic and Cyclical, Consequences, and Emotional Representations scales reflect beliefs about the number of symptoms attributed to the illness, the chronicity and cyclical nature, and the negative consequences of the illness, and patients' emotional experience of their illness. High scores on the Personal and Treatment Control and Coherence scales reflect positive beliefs about perceived control and an understanding of the illness. |
Baseline, immediately after the intervention, at 6 weeks and 3 months follow-up. |
|
Secondary |
Change in pain |
A VAS from 0 to 10 will be used to assess pain, with higher scores indicating more severe pain. |
Baseline, immediately after the intervention, at 6 weeks and 3 months follow-up. |
|
Secondary |
Change in pain and disability |
The Pain and Disability scales will be used of the Australian/Canadian Hand Osteoarthritis Index (AUSCAN). Items are rated on 5-point Likert scale ranging from "none" to "extreme", with higher scores indicating more pain and disability. |
Baseline, immediately after the intervention, at 6 weeks and 3 months follow-up. |
|
Secondary |
Change in pain interference in daily functioning and pain severity, and as exploratory measures support, life control, and affective distress |
Part 1 of the Multidimensional Pain Inventory-Dutch Language Version (MPI-DLV) will be used, with the scales Interference and Pain Severity, and as exploratory measures Support, Life Control, and Affective Distress. Items are rated on various 7-point Likert scales, with higher scores indicating greater intensity in a subscale. |
Baseline, immediately after the intervention, at 6 weeks and 3 months follow-up. |
|
Secondary |
Change in health-related quality of life |
Health-related quality of life will be measured by the RAND-36, which comprises 36 items that are averaged together to provide eight health scale scores, namely Physical Functioning, Role Limitations due to Physical Health Problems, Role Limitations due to Personal or Emotional Problems, Social Functioning, Emotional Well-being, Energy/Fatigue, Bodily Pain, and General Health Perceptions. It also includes one item on perceived change in health. Moreover, physical and mental health composite scores will be calculated. Higher scores indicate more advantageous health states. |
Baseline, immediately after the intervention, at 6 weeks and 3 months follow-up. |
|
Secondary |
Change in health-related quality of life |
Health-related quality of life will be measured by the the Five-Level Version of the EQ-5D (EQ-5D-5L). Five dimensions are assessed in 5 items: mobility, self-care, usual activities, pain/discomfort and anxiety/depression. A 5-point Likert scale ranging from "no problems" to "extreme problems" is applied, with higher scores corresponding with more problems in a HR-QoL dimension. Moreover, a VAS from 0 to 100 (0 = "The best health you can imagine" to 100 = "The worst health you can imagine") is used, with higher scores indicating a better perceived health state. |
Baseline, immediately after the intervention, at 3 months follow-up. |
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