Table 2.
Mean difference (MD) in health-related quality of life by social support status (independent samples t-test; N = 1212)
| Social support | SF-36v2PCS | SF-36v2MCS | QOL-DAv2.0 | |||
|---|---|---|---|---|---|---|
| MD (95% CI) | P | MD (95% CI) | P | MD (95% CI) | P | |
| Received social support | ||||||
| Social network support | ||||||
| Good family relationship (yes vs. no) | 3.82 (2.89, 4.75) | <0.001 | 6.85 (5.61, 8.08) | <0.001 | 14.82 (12.88, 16.75) | <0.001 |
| Usually communicates with others (yes vs. no) | 3.68 (2.77, 4.58) | <0.001 | 6.45 (5.25, 7.64) | <0.001 | 12.11 (10.20, 14.03) | <0.001 |
| Has family/friends who support MMT (yes vs. no) | 0.28 (−1.10, 1.65) | 0.69 | 0.84 (−1.01, 2.70) | 0.84 | 1.36 (−1.65, 4.38) | 0.38 |
| Professional support services | ||||||
| Convenient service time (yes vs. no) | 2.40 (1.02, 3.79) | 0.001 | 3.16 (1.29, 5.03) | 0.001 | 5.61 (2.57, 8.65) | <0.001 |
| Good service attitude (yes vs. no) | 2.30 (0.95, 3.66) | 0.001 | 1.62 (−0.22, 3.46) | 0.08 | 4.31 (1.32, 7.29) | 0.002 |
| Usually receives health counseling (yes vs. no) | 0.93 (−0.09, 1.94) | 0.07 | 2.00 (0.63, 3.36) | 0.004 | 2.88 (0.65, 5.11) | 0.011 |
| Usually receives psychological counseling (yes vs. no) | 0.65 (−0.25, 1.54) | 0.16 | 1.35 (0.14, 2.56) | 0.029 | 2.42 (0.45, 4.39) | 0.016 |
| Appropriate treatment charges (yes vs. no) | 3.32 (2.40, 4.24) | <0.001 | 4.16 (2.91, 5.41) | <0.001 | 7.43 (5.40, 9.46) | <0.001 |
| Perceived social support | ||||||
| Good perceived social support (yes vs. no) | 3.14 (2.21, 4.08) | <0.001 | 6.55 (5.31, 7.78) | <0.001 | 11.86 (9.88, 13.84) | <0.001 |
SF-36v2 Short-Form 36 Health Survey Version 2
PCS physical component summary
MCS mental component summary
QOL-DAv2.0 Quality of Life Scale for Drug Addicts
MMT methadone maintenance treatment
95% CI 95% confidence interval