Figure 2.
Correlation coefficients between absolute concentration and clinical variables. (a) Correlation between glutamate concentration and diazepam equivalent dose (ρ=0.613, P=0.0003). (b) Correlation between creatine concentration and logarithm DUP (ρ=−0.617, P=0.0003). DUP, duration of untreated schizophrenia (week).