Participant flow
ADVERSE EFFECTS
After randomisation, one health care center allocated to the intervention group declined to participate due to lack of time of the health care professionals. In the remaining 14 health centers, 169 eligible patients were included between March 2017 and April 2018. Of these, 139 (82%) participants were identified through the PRESUME approach, 5 (3%) were recruited during GP’s consultation and 25 (15%) via flyers in the waiting rooms and study information in the centers’ newsletters. On average, five participants were included per health care center (range 2 to 34).Nine eligible patients did not provide informed consent, because of lack of time (n = 1), priority for another treatment (n = 1) or other/unknown (n = 7). Of the remaining 160 participants, 80 originated from health care centers allocated to the intervention group and 80 from health care centers allocated to the control group. The inclusion stopped after the originally planned 12 months because of the financial budget restrictions of the project.Seven physical therapists and six mental health nurses from the health care centers allocated to the PARASOL intervention, were trained in the PARASOL intervention. On average they each treated 12 participants (range 5 to 26). No adverse effects of the intervention were reported.The response rate for the questionnaires was 100% at baseline, 82% at three months, and 71% at twelve months (