Biomaterial Database

Inpatient antipsychotic medication switching and rehospitalization risk among patients with schizophrenia-spectrum disorders. 2024

Y Nina Gao, and Rui Wang, and Gyojeong Gu, and Rakkoo Chung, and Mark Olfson

Department of Psychiatry, Vagelos College of Physicians & Surgeons Columbia University and New York State Psychiatric Institute, New York, United States of America. Electronic address: yihe.gao@nyspi.columbia.edu.

OBJECTIVE To describe patterns of antipsychotic switching among patients hospitalized for schizophrenia and to correlate antipsychotic switching with hospital readmission risk. METHODS We identified 3295 patients with index hospitalizations for schizophrenia or schizoaffective disorder from New York State Medicaid claims 2017-2018 who had filled at least one prescription for an antipsychotic in both the 44 days (one month +14 day grace period) prior to and after their admission. We identified patients who had kept or switched any of their antipsychotic medication between the pre- and post-periods surrounding their index hospitalization. We compared the kept and switched any groups, adjusting for patient characteristics. RESULTS Of patients who had filled antipsychotic prescriptions in both the 44 days prior to and after their hospitalization, 1599 (48.6 %) had switched at least one antipsychotic and 1215 (36.8 %) had switched their primary antipsychotic. Switching any antipsychotic was associated with increased hazards of readmission, HR = 1.21, 95%CI 1.09-1.35, which was slightly concentrated during the first 90 days after hospital discharge. CONCLUSIONS Switching antipsychotic medications during hospitalization occurs commonly and is associated with higher rehospitalization risk following hospital discharge.

UI	MeSH Term	Description	Entries
D007297	Inpatients	Persons admitted to health facilities which provide board and room, for the purpose of observation, care, diagnosis or treatment.	Inpatient
D008297	Male		Males
D008484	Medicaid	Federal program, created by Public Law 89-97, Title XIX, a 1965 amendment to the Social Security Act, administered by the states, that provides health care benefits to indigent and medically indigent persons.	Dental Medicaid Program,Medical Assistance, Title 19,Dental Medicaid Programs,Medicaid Program, Dental,Medicaid Programs, Dental,Program, Dental Medicaid,Programs, Dental Medicaid
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D009518	New York	State bounded on the north by Lake Ontario and Canada, on the east by Vermont, Massachusetts, and Connecticut, on the south by the Atlantic Ocean, New Jersey, and Pennsylvania, and on the west by Pennsylvania, Lake Erie, and Canada.
D010359	Patient Readmission	Subsequent admissions of a patient to a hospital or other health care institution for treatment.	Hospital Readmission,Rehospitalization,Unplanned Hospital Readmissions,Unplanned Readmission,30 Day Readmission,Hospital Readmissions,Readmission, Hospital,Readmissions, Hospital,Thirty Day Readmission,30 Day Readmissions,Hospital Readmission, Unplanned,Hospital Readmissions, Unplanned,Readmission, Patient,Readmission, Thirty Day,Readmission, Unplanned,Rehospitalizations,Thirty Day Readmissions,Unplanned Hospital Readmission,Unplanned Readmissions
D011618	Psychotic Disorders	Disorders in which there is a loss of ego boundaries or a gross impairment in reality testing with delusions or prominent hallucinations. (From DSM-IV, 1994)	Psychoses,Psychosis, Brief Reactive,Schizoaffective Disorder,Schizophreniform Disorders,Psychosis,Brief Reactive Psychoses,Brief Reactive Psychosis,Disorder, Psychotic,Disorder, Schizoaffective,Disorder, Schizophreniform,Disorders, Psychotic,Disorders, Schizoaffective,Disorders, Schizophreniform,Psychoses, Brief Reactive,Psychotic Disorder,Reactive Psychoses, Brief,Reactive Psychosis, Brief,Schizoaffective Disorders,Schizophreniform Disorder
D005260	Female		Females
D006760	Hospitalization	The confinement of a patient in a hospital.	Hospitalizations
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man