“…Thus, there were 41 studies included at this stage. At the final level of review for inclusion, 13 additional studies were excluded because the meditation component was mixed with other types of interventions (D’Amico et al, 2020 ; Doyle et al, 2019 ; Gaupp et al, 2020 ; Ljótsson et al, 2011 , 2014 ; Mercer et al, 2016 ; Orme-Johnson & Herron, 1997 ; Stahl et al, 2015 ; Sun et al, 2021 ), they were feasibility studies with only intervention costs (Hennelly et al, 2020 ; Tulloh et al, 2018 ), the effectiveness outcome included for cost-effectiveness calculation was not a health-related outcome (e.g., teaching competency as the effectiveness outcome; Crane et al, 2020 ), or the meditation intervention was not an MBI (Herron, 2011 ), leaving 28 studies meeting the criteria to be included in this study (Fig. 1 ).…”