Indirect effects of the PrevOP-PAP intervention on OAK symptoms via MVPA
osteoarthritis, pain
OSTEOARTHRITIS, STILL
Compared to the control group, intervention effects on overall OAK symptoms (WOMAC) trended towards a decrease at the end of the study period. Contrary to our hypothesis, this effect did no longer reach statistical significance in sensitivity analyses. Still, exploratory follow-up analyses with different domains of OAK symptoms (WOMAC) as outcomes (i.e., WOMAC-pain, WOMAC-functional limitations, and WOMAC-stiffness) revealed effects of the PrevOP-PAP intervention on pain, but null effects on functional limitations and stiffness at 24 months following study entry. These findings resemble meta-analytic evidence on self-management education programs for osteoarthritis suggesting small – mostly shorter-term – improvements in pain, but no beneficial effects on physical functioning when compared to control groups [