Figure 5.
Pearson correlations in people with schizophrenia (SCZ) and healthy control subjects (HCS) between the increase in Minnesota Nicotine Withdrawal Scale (MNWS) scores over the course of the placebo session and nicotine plasma concentrations in the ad libitum smoking session. A significant association between abstinence-induced withdrawal and smoking-derived nicotine intake was seen in SCZ but not HCS.