Ferreira‐Vorkapic 2018.

Study characteristics
Methods	Study design: RCT Duration of study: the study was published in 2018. Country: Brazil Income classification: upper‐middle‐income country from 2006 Geographical scope: urban Healthcare setting: Federal University of Sergipe and a partner yoga centre
Participants	1. Age: aged between 30 and 55 years 2. Gender: men and women 3. Socioeconomic background: not reported 4. Educational background: professors at the Federal University of Sergipe Inclusion criteria: a. healthy subjects; b. men and women; c. professors at the Federal University of Sergipe, Brazil. Exclusion criteria: individuals with chronic pulmonary disease, making use of psychotropic drugs, and with previous meditation or yoga experience. Note: at baseline, the interventions and control group scores for the Beck Anxiety Inventory (BAI) were, respectively, (mean, SE): 19.9 (1.4); 20.3 (2.3); and 19.6 (1.8). For the Beck Depression Inventory (BDI), they were instead 13.2 (1.9); 11.4 (1.6); and 11.5 (1.5). Stated purpose: observing the impact of Yoga Nidra and seated meditation on the anxiety and depression levels of college professors
Interventions	Name: meditation (mindfulness) and relaxation (Yoga Nidra) Title/name of PW and number: yoga instructor 1. Selection: first author: Camila Ferreira‐Vorkapic 2. Educational background: certified yoga instructor 3. Training: not reported 4. Supervision: not reported 5. Incentives/remuneration: not reported Prevention type: indicated – participants presented with some level of distress as indicated by BAI and BDI scores, but these were below the clinically relevant scores for both measures. Intervention details: during a 3‐month period, volunteers attended seated meditation or relaxation sessions. All sessions lasted for 45 to 50 min and were carried out twice a week at the Federal University of Sergipe and a partner yoga centre. Contemplative practices were executed by the first author (a certified yoga instructor), which utilized a detailed attendance register to check the compliance. Meditation (mindfulness): all mindfulness practices employed here are part of the Mindfulness‐Based Stress Reduction Program. Relaxation (Yoga Nidra): it is also called “psychic sleep”, an old yogic practice that provides deep psychological and physical relaxation while maintaining mental functions to be functional and alert. Control: waiting list
Outcomes	Participants’outcomes of interest for this review Anxiety symptoms – BAI Depressive symptoms – BDI Distress/PTSD symptoms – Lipp's Stress Symptoms Inventory for Adults (ISSL) Note: we included data from the meditation intervention and control group. Carers’ outcomes of interest for this review Nil Economic outcomes Nil Time points: baseline, post‐intervention (< 1 month)
Notes	Source of funding: not specified Notes on validation of instruments (screening and outcomes): the selected measures are widely adopted and validated across contexts. Additional information: none Handling the data: not applicable Prospective trial registration number: 29390514.3.0000.5546 (http://plataformabrasil.saude.gov.br)