CGI Tramadol   Buprenorphine       Moderate group MEAN SD MEAN SD t P BaselineCGI-S 10.26 25.11 10.33 25.08 -0.56 0.5 2weeks CGI-I 9.20 25.40 8.66 25.55 3.22 0.006* 12weeks CGI-I 8.066 25.72 9.133 25.45 -2.41 0.02*

Table 1: T test: CGI scores of moderate level of addiction group.