Table 3 The correlation coefficients of morphine/morphine metabolites/metabolic ratios between serum and urine (n = 24)
M (nmol/liter) | M6G (nmol/liter) | M3G (nmol/liter) | M6G/M | M3G/M | |
|---|---|---|---|---|---|
Coefficient (p-value) | 0.81(<0.01) | 0.44 (0.03) | 0.56 (0.01) | 0.82 (<0.01) | 0.76 (<0.01) |