evidence: To assess whether the deaths of young people in 2021 were temporally linked with receiving a COVID-19 vaccination, we compared the number of deaths in two time periods; these were weeks one to six following vaccination (risk period) and weeks 7 to 12 following vaccination (baseline period). Myocarditis tends to appear very soon after vaccination, with evidence suggesting the median time from vaccination to symptom onset is two days. However, we used the first six weeks after vaccination as the risk period to ensure that all deaths resulting from myocarditis would be captured. The number of follow up weeks was restricted to 12 to minimise the impact of registration delay, where deaths that occurred in later calendar weeks were less likely to have been registered. See the Data sources and quality section for more detail. [...] 585 young people aged 12 to 29 years died within 12 weeks of receiving a dose of a COVID-19 vaccine. [...] The analysis of death following vaccination in young people is based on linked death registration data from the Office for National Statistics (ONS) to data on COVID-19 vaccination from the National Immunisation Management Service (NIMS) and an extract from NHS point of care data provided by NHS-Digital.