Analysis of the utilization, processes, and outcomes of inpatient mental healthcare during the first three waves of the COVID-19 pandemic in the federal state of North Rhine-Westphalia, Germany.

The COVID-19 pandemic led to over during reductions of inpatient psychiatric hospital admissions and changes of the diagnostic spectrum accompanied by increased rates of coercive measures. These effects may reflect an overall increased severity of mental disorders during the COVID-19 pandemic, deferrals of inpatient admissions or a lack of outpatient mental healthcare services utilization. To differentiate and quantitate these potential factors, further studies in the general population and in the different mental healthcare sectors are needed. In order to reduce the number of COVID-19 cases in psychiatric hospitals, vaccination of people of higher ages and with dementias seem to be the most needed strategy.