Correlation of maximum drug concentrations measured in hair following controlled subcutaneous cocaine and oral codeine
Significance based upon analysis of variance of linear regression fit.
Low-Dose Maximum Concentrations vs. Total Melanin | ||||
| Analyte | Fitted Equation |
r
2
| ||
| Cocaine | y = 0.1x - 0.07 | 0.45* | ||
| Benzoylecgonine | y = 0.01x + 0.05 | 0.50* | ||
| Ecgonine methylester | y = 0.001x + 0.07 | 0.01 | ||
| Norcocaine | y = 0.002x + 0.1 | 0.15 | ||
| Cocaethylene | y = 0.03x - 0.02 | 0.58* | ||
| Codeine | y = 0.03x + 0.4 | 0.43* | ||
| High-Dose Maximum Concentrations vs. Total Melanin | ||||
| Cocaine | y = 0.4x - 5 | 0.80*** | ||
| Benzoylecgonine | y = 0.04x - 0.4 | 0.80*** | ||
| Ecgonine methylester | y = 0.1x + 0.1 | 0.56* | ||
| Norcocaine | y = 0.01x - 0.03 | 0.54* | ||
| Cocaethylene | y = 0.01x - 0.09 | 0.70*** | ||
| Codeine | y = 0.09x - 0.04 | 0.62** | ||
↵* p < 0.05; ** p < 0.01; *** p < 0.005.