Outcomes assessed
| Outcomes assessed | No of studies (%) | Reference no |
| Organisational/service level outcomes (eg, arrest rates, diversion rates, mental health referrals, court referrals and numbers of people under emergency protective custody) | 66 (52) | 29–32 35 38 39 41 43 46 49 50 53 54 58 61–64 68 70–76 80 83–88 92 93 95 96 100 105 107–110 112 114 116 118–121 123 124 127 130 131 133–137 139 140 143 144 146 147 |
| Views and experiences of agency staff (eg, police officers) | 28 (22) | 28–31 34 36 47–49 51 52 56 65 66 70 82 89 94 104 109 118 123 132 141 142 146 167 |
| Views and experiences of people in community (eg, service users, families and carers) | 18 (14.2) | 29 30 43 47–49 52 53 56 58 59 65 66 89 90 109 118 150 |
| Service user mental health outcomes (eg, improvement in mood) | 7 (5.5) | 58 60 62 80 101 118 139 |
| Cost effectiveness or wider economic costs | 3 (2.4) | 27 60 64 |
| Staff learning outcomes (eg, staff knowledge about mental health following mental health training) | 3 (2.4) | 57 79 91 |
| No outcomes reported | 28 (22) | 33 37 42 44 45 55 69 77 78 97–99 102 103 106 111 113 115 117 122 125 126 128 129 138 145 149 |