Retrospective analysis of North West London healthcare utilisation by children during the COVID-19 pandemic.

Objective: To explore the impact of the measures taken to combat COVID-19 on the patterns of acute illness in children presenting to primary and secondary care for North West London.

Design/setting/participants: Retrospective analysis of 8 309 358 primary and secondary healthcare episodes of children <16 years registered with a North West London primary care practice between 2015 and 2021.

Main Outcome Measures: Numbers of primary care consultations, emergency department (ED) attendances and emergency admissions during the pandemic were compared with those in the preceding 5 years. Trends were examined by age and for International Statistical Classification of Diseases and Related Health Problems 10th Revision-coded diagnoses of: infectious diseases, and injuries and poisonings for admitted children.

Results: Comparing 2020 to the 2015-2019 mean, primary care consultations were 22% lower, ED attendances were 38% lower and admissions 35% lower. Following the first national lockdown in April 2020, primary care consultations were 39% lower compared with the April 2015-2019 mean, ED attendances were 72% lower and unscheduled hospital admissions were 63% lower. Admissions >48 hours were on average 13% lower overall during 2020, and 36% lower during April 2020. The reduction in admissions for infections (61% lower than 2015-2019 mean) between April and August 2020 was greater than for injuries (31% lower).

Conclusion: The COVID-19 pandemic was associated with an overall reduction in childhood illness presentations to health services in North West London, most prominent during periods of national lockdown, and with a greater impact on infections than injuries. These reductions demonstrate the impact on children of measures taken to combat COVID-19 across the health system.