Table 4.
Comparison of Selected Joint (Treatment Utilization and Methamphetamine Use) Trajectory Groups@ (only characteristics differing at p<.10 shown in table)
| “Treatment Avoidant” Low Tx + Mod/High MA Use (n=118) |
“Early Success” Quick to Tx + Low MA Use (n=70) |
“Treatment Failure” Slow/Quick to Tx + Mod/High MA Use (n=54) |
“Later Success” Slow to Tx + Decrease MA Use (n=47) |
|
|---|---|---|---|---|
| Background | ||||
| Race/ethnicity, % Black ** | 14.4 | 27.1 | 20.4 | 4.3 |
| Arrest before age 18, % * | 39.0 | 35.7 | 55.6 | 29.8 |
| Any children during 5-yr MA traj1, % ** | 33.9 | 52.9 | 50.0 | 61.7 |
| Drug Use | ||||
| Age first MA use, Mean(SD)*** | 17.8 (4.8) | 22.5 (6.7) | 20.1 (6.5) | 20.3 (5.9) |
| Injection drug use, % ** | 50.0 | 30.0 | 55.6 | 36.2 |
| Early Drug Treatment (tx) | ||||
| Years from MA initiation to 1st MA tx, Mean(SD)*** |
13.0 (5.2) | 3.2 (4.0) | 5.3 (4.4) | 5.5 (3.2) |
| Age 1st MA tx, Mean (SD)*** | 30.0 (5.8) | 25.2 (6.4) | 24.4 (6.6) | 25.7 (5.7) |
| No. mo. with tx (excl.self-help) in yrs 1-5 after MA initiation, Mean(SD)*** |
0.01 (0.1) | 6.4 (6.8) | 4.5 (5.0) | 2.1 (3.2) |
| No. mo. with tx (excl.self-help) in yrs 6-10 after MA initiation, Mean(SD)*** |
1.1 (2.1) | 0.6 (1.5) | 4.9 (6.1) | 9.2 (7.2) |
| No. mo. with self-help in yrs 1-5 after MA initiation, Mean(SD)*** |
0.8 (5.8) | 4.2 (8.1) | 3.2 (6.0) | 0.1 (0.7) |
| No. mo. with self-help in yrs 6-10 after MA initiation, Mean(SD)*** |
0.9 (3.0) | 4.1 (9.9) | 4.2 (8.7) | 9.6 (13.0) |
1
Any children born or still under 18 years of age during first 5 years of MA use; included fathering as well as bearing children.
*
Significant at p<.05
**
p<.01
***
p<.001
@
note that 59 subjects were not included in this comparison because they were members of the remaining 4 of the joint groupings which did not conceptually fit into the categories compared.