Intervention
The intervention is based on the standard MBSR course. Adapting to the time constraints of nurses and with the approval of professors specialized in mindfulness therapy, the 1-day group retreat was modified to self-guided practice at home, making it easier to integrate into the nurses’ schedules. The instructor completed a comprehensive MBSR course and an instructing practicum, and has 3 years of teaching experience. A psychologist experienced in MBSR supervised the intervention sessions to maintain the integrity of the treatment. Each session introduced a new theme and an unusual practice, such as body scanning, mindful movement (yoga and walking), observing emotions, and mindful eating, among others. Group discussions about participants’ experiences with practices have also been conducted in every session. The practice audio was provided to the participants to facilitate at-home practice after class. To reduce absenteeism, the instructor conducted on-site training twice a week per session, with no more than 3 days between sessions and identical content. The participants were given the option to attend one of the two sessions. The program also encourages participants to develop present-moment awareness in their daily activities. A WeChat group (Tencent Inc., China) was created for the intervention group to provide reminders, encouragement, facilitate discussions, and offer additional instructions. The control group also had a WeChat group for communication.