“…Thirteen out of 20 programs were transmitted face‐to‐face [76, 78, 79, 81, 84–88, 90–92], whereas seven programs were web‐based. Ten of the prevention programs were delivered repeatedly [12, 75, 78, 80, 81, 84, 85, 89, 91, 92]. More than half of the studies used information provision ( k = 12) [75–79, 81–83, 85, 90, 92], and the majority focused on alcohol topics ( k = 14) [12, 75–84, 90, 92] in their prevention programs.…”