The impact of the COVID-19 pandemic on children and adolescent mental health inpatient service use in England: An interrupted time-series analysis of national patient records

Introduction During the COVID 19 pandemic children and young people (CYP) faced significant restrictions. The virus and restrictions also affected how health services could function, including mental health. Research analysing the COVID 19 pandemic is important to ensure dynamic and resilient service design in case of future national emergencies. Objectives To investigate the impact of COVID-19 lockdowns on CYP psychiatric admission trends during lockdowns 1 (started 26 March 2020) and 2 (started 20 November 2020) of the COVID 19 pandemic in England. Methods Routinely collected, retrospective, English, administrative data looking at the CYP hospital admissions, length of stay and patient demographics were analysed using an interrupted time series analysis to compare pre-pandemic service use with service use during COVID 19 lockdowns 1 and 2. The analysis used an ordinary least squares (OLS) approach with Newey–West standard errors to handle autocorrelation and heteroscedasticity. Results Table 1. Patient characteristics in the entire sample (n=6,250) Variable Pre-pandemic Post-pandemic Total sample (n=1,156) (n=94) (n=6,250) Mean age at admission (SD) [Median; IQR] 15.3 (1.7) [16;3] 15.6 (1.6) [16;2] 15.3 (1.7) [16;3] Gender Female 70% 72% 70% Missing 1% 2% 1% BAME background Yes 18% 18% 18% Missing 7% 6% 7% Looked after Yes 11% 8% 11% Missing 14% 13% 14% In full education Yes 43% 34% 43% Missing 35% 47% 35% Mean number of admissions per patient (SD) [Median; IQR] 1.7 (1.2) [1;1] 1.2 (0.6) [1;0] 1.7 (1.2) [1;1] Mean length of stay (SD) [Median; IQR] n 93 (94) [68;94] 6,065 65 (65) [43;77] 71 93 (94) [67;94] 6,136 Mean number of out-of-area admissions per patient (SD) [Median; IQR] 0.48 (0.8) [0;1] 0.33 (0.6) [0;1] 0.48 (0.80) [0;1] SD: standard deviation; IQR: Interquartile range Image: Image 2: Image 3: Conclusions During lockdown 1 and 2, psychiatric admissions for CYP were fewer and shorter. The rise in admissions for more deprived CYP and looked after children suggests these CYP may have been disproportionately affected by the pandemic. Disclosure of Interest None Declared