CRP and schizophrenia: The aims of Study 2 comparing chronically ill patients with schizophrenia to a healthy control group were to determine the extent to which: (1) CRP levels were elevated, (2) the proportions of patients versus controls having elevated CRP, (3) there were significant cognitive, symptom severity, and daily function differences between patients with elevated and patients with normal CRP levels, and (4) CRP levels predict cortical thickness.