A niacin skin testing-based method and test kit for supplementary diagnosis of mental disorders. The reagent composition or the test kit of the present invention can be used in the supplementary testing or diagnosis of a specific group of people, especially male patients, to determine whether the patient has a mental disorder (including schizophrenia and affective disorders). The testing of the present invention has excellent specificity and is high in accuracy. Further, the reagent composition is highly accurate and may also provide information useful for distinguishing between schizophrenia and an affective disorder.
METHOD AND TEST KIT FOR SUPPLEMENTARY SCREENING OF COMMON MENTAL DISORDERS