Table 3: Results of confirmatory factor analysis based on exploratory factor analysis.

LoadingsFactor 1 (necessity)Factor 2 (concerns)Factor 3 (practical barriers)

1. I have a clear picture of how pain rehabilitation will help me resume my daily activities0.63900
2. I have a clear picture of what I want to achieve by attending pain rehabilitation0.77100
3. Attending pain rehabilitation may help me to do more activities0.68300
4. Some aspects of pain rehabilitation are unnecessary for me−0.58700
5. I hope that attending pain rehabilitation may help me to return to (volunteer) work quickly0.56700
6. Some aspects of pain rehabilitation may be harmful to me−0.65700
7. I am worried that I may not be able to keep up with the exercise part00.9260
8. I may not be physically fit enough to attend pain rehabilitation00.7330
9. On the days between the rehabilitation sessions, I am probably very tired from exercising00.4500
10. The cost of transport may prevent me from attending pain rehabilitation000.861
11. Availability of transport will influence my decision to attend pain rehabilitation000.954