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Table 3 Univariate analysis showing only significant variables associated with improvement in each quality of life domain

From: Improvement of quality of life following 6 months of methadone maintenance therapy in Malaysia

Variables (n) Domain 1 Domain 2 Domain 3 Domain 4
  Physical Psychological Social relationship Environment
  Mean ± SD p value Mean ± SD p value Mean ± SD p value Mean ± SD p value
No of positive urine tests* 1.02 ± 1.77 r = 0.213 1.02 ± 1.77 r = 0.115 1.02 ± 1.77 r = 0.066 1.02 ± 1.77 r = 0.130
   p = 0.019   p = 0.206   p = 0.467   p = 0.153
Education level**
Primary (9) 5.22 ± 15.41 df1 = 3 5.33 ± 20.94 df1 = 3 −3.44 ± 15.13 df1 = 3 3.33 ± 15.68 df1 = 3
Junior high (44) 14.00 ± 15.13 df2 = 118 18.64 ± 18.71 df2 = 118 7.64 ± 18.23 df2 = 118 8.66 ± 13.50 df2 = 118
Senior high (65) 13.42 ± 17.45 F = 1.622 13.32 ± 20.23 F = 3.403 5.77 ± 22.63 F = 7.785 10.15 ± 15.80 F = 1.718
Tertiary (4) 27.00 ± 23.58 p = 0.188 40.50 ± 33.97 p = 0.020# 53.25 ± 35.95 p < 0.001 23.50 ± 21.21 p = 0.167
HIV Status **         
Negative (95) 14.73 ± 17.68 df1 = 2 18.22 ± 20.78 df1 = 2 9.49 ± 22.96 df1 = 2 11.74 ± 15.38 df1 = 2
Positive (21) 10.10 ± 13.59 df2 = 119 7.81 ± 17.78 df2 = 119 1.67 ± 18.53 df2 = 119 2.76 ± 11.98 df2 = 119
Unknown (6) 5.33 ± 9.03 F = 1.398 0.17 ± 20.65 F = 4.072 −7.33 ± 26.78 F = 2.388 −1.33 ± 14.65 F = 4.847
   p = 0.251   p = 0.019   p = 0.096   p = 0.009
  1. *Pearson correlation, **ANOVA test, significant when p value < 0.05.
  2. #Post hoc performed using Scheffe method.