ABSTRACT
The present study aimed to evaluate the effect of mindfulness intervention based on stress reduction in psychological distress and self-efficacy of health industry staff in Russia in 2021 during the COVID-19 pandemic. The statistical population included 600 physicians and nurses working in COVID-19 wards of hospitals in Moscow. Data were collected using standard questionnaires. Data analysis was performed in SPSS. According to the results, mindfulness intervention based on stress reduction improved psychological distress and self-efficacy in nurses of the test group, compared to the control group, during the COVID-19 pandemic (P < 0.05). According to the results, mindfulness treatment based on stress reduction reduced three components of psychological distress, stress (F = 24.03, effect size = 0.78, P < 0.001), anxiety (F = 32.12, effect size = 0.69, P = 0.001), and depression (F = 22.31, effect size = 0.72, P = 0.001) while increasing self-efficacy (F = 44.52, effect size = 0.84, P = 0.001). Copyright © 2022 Inderscience Enterprises Ltd.