Exploring Discharge Outcomes and Readmission Rates of Mothers Admitted to a Psychiatric Mother and Baby Unit.

To evaluate change in Health of the Nation Outcome Scale (HoNOS) scores from admission to discharge, readmission rates after 28-day and six months post-discharge, and factors associated with readmission in a Mother and Baby Unit (MBU). An exploratory cohort study was completed of mother-infant dyads admitted to a public psychiatric MBU in Australia between March 2017 and August 2018 (18 months). Admission and discharge scores on the clinician-rated Health of the Nation Outcome Scale (HoNOS) were compared using dependent samples t-tests. The frequency of readmission to any psychiatric inpatient unit within six months of discharge was determined from medical records. Characteristics of mothers who were and were not readmitted were evaluated. Of the 82 mother-infant dyads admissions, 12 (14.63%) women were readmitted within six months, and six (7.31%) were readmitted within 28-days. Total HoNOS scores significantly improved between admission and discharge (t(81)=9.45, p<.000). Descriptive statistics for demographics, diagnoses, Mental Health Act status and discharge supports were computed for women readmitted and not readmitted. While these readmission rates and HONOS scores reflect a successful MBU admission, further research is required with larger sample sizes and more specific maternal and infant mental health outcome measures.