What percentage of those diagnosed with schizophrenia didn't have brain abnormalities? Scientists in a wide study of subcortical brain abnormalities from the ENIGMA Consortium, Schizophrenia Working Group, published in Molecular Psychiatry, analyzed the brain scans of more than 2,000 people diagnosed with schizophrenia. 

I doubt diagnosis is 100% accurate, so I'm thinking a percentage of those diagnosed didn't have abnormalities. What is that percentage? (There is a table in the Molecular Psychiatry article, with information which might or might not be related to my question, but I don't know how to read it).
This ENIGMA study did not assess brain abnormalities at an individual level. Rather, it examined if the volumes of a range of subcortical brain structures differed between patients with schizophrenia and healthy control subjects at the group level, using a meta-analytic approach. The term "brain abnormalities" might be misleading in this context: The study was not about the type of brain abnormalities that would be detectable by a neuroradiological exam (for a study focusing on this, see Sommer et al, 2013, Schizophrenia Bulletin, doi: 10.1093.schbul.sbs037). It is therefore not possible to determine the percentage of patients who had brain abnormalities from the study.