Interventionstructure and schedule
The intervention group received the OTDSM which involved a combination of individual and group sessions, both face-to-face, and remote ones. The program started with an individual face-to-face session lasted about 45 min, then continued with four face-to-face group meetings took approximately 120–150 min, and five individualized and mostly remotely ones provided weekly over ten consecutive weeks. The face-to-face sessions were held at the School of Rehabilitation of Iran University of Medical Sciences, while the remote sessions were conducted via phone calls. The participants' family members could also participate in the program, if necessary.The outbreak of COVID-19 at the time of the study caused the research team to provide the participants transportation to attend the in-person sessions. The subjects in the intervention group were also randomly divided into two subgroups of 7 and 8 persons each. These subgroups had their meetings separately in a large hall.