“…We classified the 28 trials (Additional file 1: Table S1) into four categories by intervention type: active contact and follow-up interventions (Table 1) (18 publications from 14 trials) [21, 24, 25, 27–30, 33, 37–41, 44, 45, 50–52], psychotherapy (12 publications from 10 trials) [22, 26, 32, 34–36, 42, 43, 46–48, 54], pharmacotherapy (1 publication from 1 trial) [23], and miscellaneous interventions (3 publications from 3 trials) [31, 49, 53]. Fourteen trials in 18 publications were active contact and follow-up interventions (Table 1).…”