Stefan Elbers

186 Chapter 7 Table 1. Continued. Outcome Hypothesis/research question Outcome measure Method of analysis Active engagement with Insight Cards To what extent will the number of created Insight Cards increase or decrease after treatment? Number of Insight Cards created Descriptive statistics Active engagement with VBG m To what extent will the number of created VBG cards increase or decrease after treatment? 1. Number of VBGs created. 2. Number of steps created Descriptive statistics Notes: a IMPT: interdisciplinary multimodal pain therapy. b PDI: Pain Disability Index. c Outcome measure is part of routine care. d GPE: global perceived effect. e t 1 : immediately postintervention. f Outcome measures will be obtained with an additional electronic survey. g SF- 12: 12-item short-form health survey. h iPCQ: iMTA Productivity Cost Questionnaire. i IPQ-K DLV: Dutch language version of the Illness Perception Questionnaire. j PSEQ: Pain Self-Efficacy Questionnaire. k NRS: numeric rating scale. l t 4 : 12 months postintervention. m VBG: Value-Based Goals. Primary Outcome. Self-perceived pain disability will be measured with the Pain Disability Index (PDI) (Soer et al., 2012). This questionnaire consists of 7 items ranging from 1 (no disability) to 10 (maximum disability). Each item relates to the self-reported disability in the context of family/home, recreation, social, occupation, sexual, self-care, and life support. The PDI score (0-70) is obtained by summing all individual items. The PDI score is evaluated as responsive, with a change of 8.5 to 9.5 points considered to be clinically important (Soer et al., 2012). Secondary Outcomes. iMTA Medical Cost Questionnaire. The iMTA Medical Cost Questionnaire (iMCQ) measures all health care costs that have been made during a specific period (Bouwmans et al., 2018a). The questionnaire contains 18 items that refer to 11 primary care components (e.g., medication use, general practitioner visits) and 5 secondary care components (e.g., hospital visits). Two optional questions will be added that relate to informal care by relatives and health care–related travel expenses. Furthermore, we will add two questions from the iMTA Productivity Cost Questionnaire (iPCQ) to acquire an indication of the productivity losses, as the number of hours work lost due to the disease (Bouwmans et al., 2018b; Bouwmans et al., 2015).