Lee 2020.

Study characteristics
Methods	Study design: randomised controlled trial Study grouping: parallel group
Participants	Baseline characteristics Psychotherapy Age in years (mean ± SD): NR Sex (N (% female)): 37 (71.1%) Sample size: 52 Years of experience (mean ± SD): NR Control (no intervention) Age in years (mean ± SD): NR Sex (N (% female)): 41 (68.3%) Sample size: 60 Years of experience (mean ± SD): NR Overall Age in years (mean ± SD): NR Sex (N (% female)): 78 (69.6%) Sample size: 112 Years of experience (mean ± SD): NR Included criteria: the participant must be a practising physician of the primary healthcare system in Almaty (Kazakhstan), he/she should have at least one year of work experience; he/she must provide signed informed consent. Excluded criteria: incomplete filling out of questionnaires, refusal to participate in the study, lack of informed consent, dismissal from work. Pretreatment: according to the results, there was no statistically significant difference between age, gender, marital status and speciality of doctors in the two groups. Type of healthcare worker: exclusively doctors involved in primary healthcare Response rate: 93% Compliance rate: 23%
Interventions	Intervention characteristics Psychotherapy Type of the intervention: Intervention type 1 ‐ to focus one’s attention on the experience of stress Description of the intervention: Short‐term psychotherapy based on the coping strategy (Asimov method): 1st step – differentiation and self‐knowledge; 2nd step – awareness of the state through induced images; 3rd step – awareness of the state through spontaneous images with closed eyes; 4th step – awareness of the state through spontaneous images with open eyes; 5th step – environmentally friendly behaviour. The number of sessions: 9 to 12 times a month Duration of each session on average: 50 minutes Duration of the entire intervention: 4 weeks Duration of the entire intervention short vs long: Short Intervention deliverer: NR Intervention form: Individual, video communication Control (no intervention) Type of the intervention: NA Description of the intervention: NA The number of sessions: NA Duration of each session on average: NA Duration of the entire intervention: NA Duration of the entire intervention short vs long: NA Intervention deliverer: NA Intervention form: NA
Outcomes	Maslach Burnout Inventory ‐ Emotional Exhaustion Outcome type: ContinuousOutcome Maslach Burnout Inventory ‐ Depersonalisation Outcome type: ContinuousOutcome Maslach Burnout Inventory ‐ Personal accomplishment (lack of) Outcome type: ContinuousOutcome
Identification	Sponsorship source: NR Country: Republic of Kazakhstan Setting: Two out‐patient‐clinics Comments: NR Authors name: Sergey Lee Institution: S.D. Asfendiyarov Kazakh National Medical University Email: lee.s.kaznmu@mail.ru Address: Tole Bi Street 94, Almaty, 050000, Kazakhstan Time period: 2019
Notes	MBI‐EE included in analysis 1.2
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Low risk	Participants were assigned with an individual number, after which they were randomized using online random tools (experimental and control groups into two groups):
Allocation concealment (selection bias)	Unclear risk	Insufficient information to understand whether intervention allocations could have been foreseen in advance of, during, enrolment.
Blinding of participants and personnel (performance bias) All outcomes	High risk	Participants were not blinded.
Blinding of outcome assessment (detection bias) All outcomes	High risk	Participants were not blinded whereas outcomes are self‐reported.
Incomplete outcome data (attrition bias) All outcomes	High risk	112 of the 243 randomised participants included in the analyses. Not reported whether lost to follow‐up was at random.
Selective reporting (reporting bias)	Unclear risk	No trial protocol reported, nor did we find one online.
Other bias	Low risk	No indication of other bias.