Table 4 |
||||
|
Multiple regression testing the effects of predictor variables on the normalized composite neuropsychological performance score. |
||||
| Subjects |
Predictor |
Standardized Coefficient |
R2 |
ANOVA |
|
|
||||
| All |
Composite MCMI |
β = -0.572; |
0.327 |
F = 25.312 |
| t = -5.031; |
df = 1, 52 |
|||
| p < 0.001 |
p < 0.001 |
|||
|
|
||||
| MM + PA |
Composite MCMI |
β = -0.429; |
0.185 |
F = 3.52; |
| t = -2.65; |
df = 2, 31; |
|||
| p = 0.013 |
p = 0.042 |
|||
|
|
||||
| Age at first drug use |
β = -0.01; |
|||
| t = -0.061; |
||||
| p = 0.952 |
||||
|
|
||||
| MM + PA |
Composite MCMI |
β = -0.434; |
0.188 |
F = 3.94; |
| t = -2.8; |
df = 2, 34; |
|||
| p = 0.008 |
p = 0.029 |
|||
|
|
||||
| Years of heroin addiction |
β = 0.003; |
|||
| t = 0.022; |
||||
| p = 0.982 |
||||
|
|
||||
| MM + PA |
Composite MCMI |
β = -0.398; |
0.163 |
F = 0.2.82; |
| t = -2.34; |
df = 2, 29; |
|||
| p = 0.026 |
p = 0.076 |
|||
|
|
||||
| Estimated dollars spent daily on heroin |
β = 0.085; |
|||
| t = 0.50; |
||||
| p = 0.622 |
||||
|
|
||||
| MM + PA |
Composite MCMI |
β = -0.437; |
0.195 |
F = 4.12; |
| t = -2.84; |
df = 2, 34; |
|||
| p = 0.008 |
p = 0.025 |
|||
|
|
||||
| Years of MMT |
β = -0.083; |
|||
| t = -0.536; |
||||
| p = 0.596 |
||||
|
|
||||
| MM + PA |
Composite MCMI |
β = -0.344; |
0.196 |
F = 3.41; |
| t = -1.97; |
df = 2, 28; |
|||
| p = 0.058 |
p = 0.047 |
|||
|
|
||||
| Highest dose of methadone |
β = 0.21; |
|||
| t = 1.21; |
||||
| p = 0.238 |
||||
|
MM – Methadone Maintained, PA – Protracted Abstinence, MCMI – Millon Clinical Multi-axial Inventory. | ||||
Prosser et al. Substance Abuse Treatment, Prevention, and Policy 2008 3:23 doi:10.1186/1747-597X-3-23 |
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