Page 177 - THE PERCEPT STUDY Illness Perceptions in Physiotherapy Edwin de Raaij

Theme 1
Assessing illness perceptions by use of a questionnaire.
Chapter 2
We have translated and adapted an existing English language illness perceptions questionnaire We have translated and adapted an existing English language IP questionnaire into a Dutch language version (Brief IPQ-DLV), using all stages of cross-cultural translation and validation, including a research team of native speakers in Dutch and/or English.
The Brief IPQ-DLV has nine items, each question representing one IP dimension.
Our research showed it takes less than five minutes to complete the Brief IPQ-DLV. The content validity was tested on a panel of patients from primary physiotherapy care and freshman high school students and found to be acceptable. All participants understood the meaning of all nine questions.
We were able to assess the concurrent validity (Do they measure what they are designed for to measure?) of four questions (i.e. dimensions); there was no comparable measurement instrument found eligible for the other five questions. The four dimensions, Consequences, Personal Control, Concern and Emotional Response, showed significant associations with a comparable measuring instrument for each domain.
Theme 2
The association of illness perceptions with pain intensity and of illness perceptions with physical functioning
Chapter 3
The systematic literature review had two research questions:
1. What are the associations of illness perceptions with pain intensity and of illness
perceptions with physical functioning in patients with musculoskeletal pain?
2. Can illness perceptions predict the degree of pain intensity or physical functioning in
patients with musculoskeletal pain?
Ad 1: There is evidence that all IP dimensions are positively associated with pain intensity and/or physical functioning. This is demonstrated in nine cross-sectional studies. The outcomes show that higher scores on IP questions are associated with higher pain intensity and higher limitations in physical functioning. Therefore, a high score on an IP question can be labelled as dysfunctional.
Summary
175
A