Group Characteristics
ADVERSE EVENTS
The 125 participants had a mean (SD) age of 15.96 (1.97) years; 80 were assigned to the METRA group and 45 to the TAU group. Participants in the METRA group had a mean (SD) age of 15.83 (2.07) years and had a mean (SD) of 8.16 (1.80) family members. Participants in the TAU group had a mean (SD) age of 15.65 (1.85) years and a mean (SD) of 8.59 (2.22) family members. Summary of baseline data for those who dropped out, those with adverse events, and those who completed the intervention is presented in the eTable in 