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Number of participants using concomitant care.
| Group | PREa, n (%) | POSTb, n (%) | Difference POST–PRE, n (%) |
| IG DHAc (n=132) | 4 (3) | 1 (0.8) | –3 (–2.2) |
| CG SHI-PTd (n=121) | 5 (4.1) | 4 (3.3) | –1 (–0.8) |
aPRE: survey before the first therapy session.
bPOST: survey after completing the treatment period of 12 weeks.
cIG DHA: intervention group using digital health application.
dCG SHI-PT: control group with physiotherapy covered by statutory health insurance in Germany.
