Fig. 2.

The method of determining the duration of first-episode of psychosis (FEP) in the present study. a A sample case of a patient who first visited the hospital and was admitted on the same day. If this patient was discharged and did not require readmission within 3 months, the FEP duration would be evaluated as the period from the date of the initial hospital admission to the date of discharge from the indexed admission. b A sample case of a patient starting medication in the inpatient setting as in the case of A), but requiring hospital readmission within 3 months following the date of the indexed admission. The FEP duration is evaluated from the date of the initial hospital admission to the date of discharge (the third discharge) (that was not followed by readmission within 3 months). c A sample case of a patient who did not require hospital admission for FEP treatment within 3 months following the medication onset. This FEP duration is evaluated as “0”