Table 3 Predictors of attendance rate on the heroin-dependent individuals receiving methadone maintenance treatment using generalized estimating equation models

Age (year)

0.005

(−0.001, 0.010)

0.001

(−0.004, 0.006)

Gender (ref: female)

−0.115*

(−0.216, −0.013)

−0.017

(−0.101, 0.066)

Living alone (ref: no)

0.088**

(0.024, 0.152)

0.023

(−0.111, 0.156)

Educational years

−0.005

(−0.001, 0.010)

−0.013

(−0.026, <0.001)

Age of first heroin use

−0.007*

(−0.012, −0.001)

<0.001

(−0.006, 0.005)

Fixed employment (ref: no)

−0.002

(−0.055, 0.051)

0.053

(−0.004, 0.111)

Family drug using (ref: no)

0.046

(−0.016, 0.107)

0.026

(−0.074, 0.125)

HBV (ref: seronegative)

−0.015

(−0.093, 0.063)

0.026

(−0.062, 0.113)

HCV (ref: seronegative)

−0.068*

(−0.120, −0.016)

0.224**

(0.085, 0.363)

HIV (ref: seronegative)

0.009

(−0.051, 0.069)

–^a

–^a

Physical QoL

−0.015

(−0.034, 0.004)

0.022

(−0.001, 0.045)

Psychological QoL

−0.010

(−0.025, 0.006)

−0.011

(−0.031, 0.009)

Social QoL

−0.002

(−0.017, 0.013)

−0.020*

(−0.034, −0.006)

Environment QoL

0.012

(−0.003, 0.028)

0.019

(−0.001, 0.039)