The mortality data for England and Wales from ONS from 1 May 2021 until 17 September 2021 shows a significant excess, particularly in the 15-19 year age group. Depending on the baseline chosen, the excess for 15-19 year olds is between 16% and 47% above expected levels (see table 1 and 2). COVID-19 deaths were too small in number to account for the excess. A disproportionate number of these excess deaths were in males. A certain amount of variation by random chance would be expected but an increase of this proportion is large enough not to be dismissed without further investigation.
A similar magnitude of excess is seen in the 20-29 year old age groups, although background rates are higher. Comparing just deaths in males aged 15-19 year olds, there were between 52 and 87 excess deaths (depending on baseline). This clear predominance of male deaths could be in keeping with known risks of myocarditis which has a bias to men and boys. In 2015-2019 males accounted for 65% of deaths in the 15-19 year age group, rising to 70% in 20-29 year olds. If the entire excess had been due just to random variation we would have expected 65% of the excess to have been male. However, there were too many male deaths to reach that conclusion. There were 21 male deaths in excess of what would be expected with a normal male female ratio (2020 baseline) or 25 male deaths in excess (2015-2019 baseline).