Comparison of Psychiatric Service Utilization Prior, During, and After COVID-19 Lockdown: A Retrospective Cohort Study

Background COVID-19 pandemic represents a significant risk factor for developing, relapsing, or exacerbating pre-existing mental health conditions. This negative impact on mental health results in increasing demand for psychiatric services. This study aimed to explore the effects of COVID-19 pandemic lockdown on the utilization of mental health services in three periods - prior, during, and after the lockdown - compared to the matched weeks in the previous years 2018 and 2019. Materials and Method In this retrospective cohort, quantitative, single-center study, data were collected from electronic medical records, including all patients with referrals\consultations to the psychiatric section prior, during, and after COVID-19 lockdown. Results In total, 2,454 patients were either referred to psychiatric outpatient clinics or needed consultation as inpatients during the study periods. Only 2,326 patients were included in our study. The total number of inpatient consultations was 1,410, with a statistically significant increase during the lockdown (p-value<0.001) and post-lockdown (p<0.016) in comparison to previous years. A significant reduction in outpatient referrals was observed during the lockdown (p=0.005) and post-lockdown period. Psychiatric disorders were identified in most patients (N=1,599), representing 65%, 54%, and 74% of patients in pre-lockdown, lockdown, and post-lockdown periods compared to 71%, 71%, and 76%, respectively, in the previous years. A total of 821 patients manifested symptoms of depression, constituting the largest proportion among all reasons for referral\consultations. The number of patients referred for substance/alcohol use disorders during the lockdown increased compared to patients in the same period in 2019. Suicidal behavior was identified in 70 patients across all study periods, with the lowest number observed in 2020. Conclusion Our findings indicate that during the COVID-19 lockdown, a significant increase in inpatient psychiatric services utilization was observed. Outpatient psychiatric service utilizations were significantly reduced. Implementation of evidence-based policy and protocol to guide mental health challenges in future health emergencies is needed.