“…In total, 20 studies considered the prevention of HIV/AIDS/hepatitis C or other blood-borne viral infections or STIs; 23,27,101,106,120,121,123,125,126,128,130,131,134,144,150,158,160,[162][163][164] 12 considered general health and/or hygiene; 25,32,38,40,119,127,133,136,140,148,149,157,159 four looked at issues affecting prisoners on release, such as employment or housing; 135,139,141,147 seven looked at the prevention of suicide or self-harm; 22,26,31,36,124,137,138 two considered mental health or substance abuse; 122,145 two looked at improving educational skills; 142,143 one considered pa...…”