“…An initial search identified 20,040 studies, of which, those with limited discussions in relation to MH outcomes and of poor quality, were excluded, resulting in a final dataset of 69 studies ( Table 1a ) of which 46 studies were systematically included and thematically analysed ( Table 2 ). These 46 studies included 26 qualitative [ 12 , [22] , [23] , [24] , [25] , [26] , [27] , [28] , [29] , [30] , [31] , [32] , [33] , [34] , [35] , [36] , [37] , [38] , [39] , [40] , [41] , [42] , [43] , [44] , [45] , [46] ], 17 cohort [ 7 , 18 , 21 , [47] , [48] , [49] , [50] , [51] , [52] , [53] , [54] , [55] , [56] , [57] , [58] , [59] , [60] ], 6 controlled [61] , [62] , [63] , [64] , [65] , [66] , 2 randomised controlled trials [ 19 , 67 ] and 2 mixed methods [ 68 , 69 ] studies. Based on the eligibility criteria, and the quality assessment, 21 studies were selected for the meta-analysis.…”