IN THE past decade there has been an increase in interest concerning factors which relate to or predict the prognosis of hospitalized schizophrenic patients. One aspect of their prognosis is posthospital adjustment, and it has received extensive attention in the recent literature. Another aspect of the prognosis of schizophrenic patients which has received far less attention is length of hospitalization. Detailed information on what variables predict length of hospitalization would be of both theoretical and practical importance. In relation to theory, data concerning the prognosis of schizophrenics, based on their posthospital adjustment, have been of value in increasing our understanding of schizophrenia. Formulations about good and poor premorbid schizophrenics,1,2and related (but not identical) ones about process and reactive schizophrenics3are based in part on research on such prognostic factors. In addition, research on prognosis which has been used to support formulations about the