Because this piece does not have an abstract, we have provided for your benefit the first 3 sentences of the full text.
Sir: In their very interesting article "Screening for Diabetes and Other Metabolic Abnormalities in Patients With Schizophrenia and Schizoaffective Disorder: Evaluation of Incidence and Screening Methods,"1 van Winkel et al. report on use of an oral glucose tolerance test (OGTT) in 415 mainly inpatients (73.7%) in a Belgian psychiatric hospital. The numbers involved convincingly show that OGTT is a feasible option in the diagnosis of (pre)diabetes in schizophrenia.
The study, nevertheless, raises some methodological questions.