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Table 1 Baseline characteristics of participants (* p < 0.05, **p < 0.001)

From: DOES IT WORK? -a randomized controlled trial to test the efficacy of HCV and HIV-related education on drug users in MMT, China

  Research Control Total p
(n = 120) (n = 120) (n = 240)  
Age, M(SD), years 43.15(8.21) 41.83(8.93) 42.46 (8.6) 0.260
Male, n (%) 98 (81.67) 94(78.33) 192(80.0) 0.630
Marital status, n (%)
 Single 63(52.5) 62(51.7) 125(52.08) 0.788
 Married 57(47.5) 58(48.3) 115(47.92)
Education, M(SD), years 9.84(1.87) 9.94(2.28) 9.89(2.08) 0.710
No employment, n (%) 91(75.84) 87(72.5) 178(74.2) 0.550
Have medical insurance, n (%) 60(50.0) 48(40.0) 108(45.0) 0.120
HCV infection, n (%) 85(70.83) 83(69.16) 168(70) 0.358
HIV infection, n (%) 0 0 0
duration of heroin use, M(SD), years 11.51(7.97) 10.40(5.13) 10.89(6.42) 0.203
length of receiving MMT, M(SD), years 2.37(1.24) 2.68(1.45) 2.48(1.36) 0.410
With alcohol use, n (%) 28(23.3) 52(43.3) 80(37.08) 0.001**
HCV related knowledge, M(SD) 6.923(3.165) 6.10(3.77) 6.51(3.5) 0.072
HIV related knowledge, M(SD) 21.30(6.91) 20.14(9.73) 20.57(6.54) 0.695
HCV/HIV infection awareness 7.89(2.31) 9.06(2.99) 8.35(2.8) 0.001**