different disorders show different degrees of recurrence or persistence on the other hand inpatient data show only part of the whole picture patients in inpatient psychiatric care are a selected group inpatient data from switzerland show that clinicians tend to overestimate the chronicity of their patients illness because of a relatively small group of patients who are readmitted very often frick and frick diagnosis was strongly related to the risk of rehospitalisation and the duration between two consecutive inpatient stays with a higher rehospitalisation risk as well as a shorter time until readmission for schizophrenia and personality disorders