“…In particular, SF-12 has demonstrated excellent reliability and validity in the general population (Ware et al, 1996); among individuals with severe mental illness and substance dependence (Salyers, Bosworth, Swanson, Lamb-Pagone, & Osher, 2000); and among people living with HIV (Chariyalertsak et al, 2011; Delate & Coons, 2000; Han, Pulling, Telke, & Huppler Hullsiek, 2002; Viswanathan, Anderson, & Thomas, 2005; Wu, Hays, Kelly, Malitz, & Bozzette, 1997). The use of the SF-36, from which the SF-12 is based, has also demonstrated validity in Tanzania (Magafu et al, 2009; Wagner et al, 1999; Wyss et al, 1999). Data were collected at baseline and at three to six months follow-up and extracted from the MMT electronic database for analysis.…”