Participants and design
Participants for this two-arm, single-blind RCT were recruited from the Dutch general population through the placement of advertisements on websites and local media. Data were collected pre-treatment, post-treatment, and at 3-month and 12-month follow-up. Ethics approval was granted by the Medical Ethical Committee of the Vrije Universiteit Medical Center (registration number: 2019-321). The study was prespecified in the trial protocol (Fehribach et al., 