RT Journal Article SR Electronic T1 Retrospective analysis of North West London healthcare utilisation by children during the COVID-19 pandemic JF BMJ Paediatrics Open JO BMJ Paediatrics Open FD BMJ Publishing Group Ltd SP e001363 DO 10.1136/bmjpo-2021-001363 VO 6 IS 1 A1 Rohan Mongru A1 Danielle F Rose A1 Ceire Costelloe A1 Aubrey Cunnington A1 Ruud G Nijman YR 2022 UL http://bmjpaedsopen.bmj.com/content/6/1/e001363.abstract AB 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.Data are available on reasonable request. The data used for this manuscript are available upon reasonable request. Access to the original data in the virtual data environment will be conditional on the permission from the COVID-19 NWL Data Prioritisation Group.