Page 179 - THE PERCEPT STUDY Illness Perceptions in Physiotherapy Edwin de Raaij

the known factors as described above, we analysed the additional explained variance of IPs on pain intensity and limitations in physical functioning. The model showed for pain intensity an explained variance without the IPs of 9.6%, and with the IP dimensions Consequences, Identity and Coherence 22.9%.
For physical functioning, the model showed an explained variance without the IPs of 5.7%, and with the IPs dimensions Treatment Control, Identity and Concern 32.2%.
Due to the cross-sectional design, a causal inference cannot be drawn.
We concluded that some IP dimensions showed extra explained variance. Therefore, we recommended future research with different designs on the predictive and/or causal associations between IPs and pain intensity or limitations in physical functioning.
Chapter 5
In this chapter, we explored whether baseline IPs have added predictive value for poor recovery after three months. We performed a longitudinal study among 251 patients with MSP in 29 different primary care physiotherapy settings.
We looked at global perceived effect of regular physiotherapy treatment and poor recovery of pain intensity and physical functioning. By means of a hierarchical logistical regression, IPs were added to the model after adjusting for gender, age, pain intensity, duration of pain, degree of limitations in physical functioning in daily life, pain located in more than two pain sites and psychological factors like distress, somatisation, depression and fear. The outcome of the analysis showed that baseline IPs did not add predictive value for poor recovery after three months. The IP dimensions Timeline and Treatment Control made statistically significant contributions to the model. The ‘Area Under the Curve’ increased by 2-3% after the addition of these IPs. This small increase led to the conclusion that IPs in our study did not add predictive value for poor recovery in pain intensity, limitations in physical functioning and the global perceived effect.
Theme 3
The effectiveness of a physiotherapy intervention on IPs, pain intensity and physical functioning
Chapter 6
This chapter describes a case study of a female patient aged 45 with post-traumatic secondary osteoarthritis of the lateral patellofemoral cartilage and persistent pain with limitations in physical functioning. The course of changed IPs, pain intensity and limitations in physical functioning was described. The presence of dysfunctional IPs prior to the treatment made
Summary
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