Table 4 Multivariate linear regression of plasma brain-derived neurotrophic factor concentration with related factors
| Â | Healthy Controls | Heroin-Dependent Patients | ||
|---|---|---|---|---|
Related Factors | β | p | β | p |
Gender | 0.124 | 0.299 | −0.166 | 0.054 |
Age | 0.105 | 0.313 | −0.049 | 0.624 |
Body weight | 0.171 | 0.149 | 0.204 | 0.013 |
BDNF Met/Val gene | −0.035 | 0.735 | 0.035 | 0.645 |
Oral methadone dose at visit | − | − | −0.004 | 0.969 |
Plasma methadone concentration | − | − | 0.038 | 0.697 |
Blood platelet counts | − | − | 0.379 | <0.0001 |
Heroin-dependency duration (years) | − | − | −0.180 | 0.046 |
