Discrepancy between ONS asthma death stats and BHRUT stats needs investigating by Mr Gove's Office

 This is ONS child asthma deaths, it shows only one child asthma death in 2020 for all of London. The ONS list total asthma deaths at 174. ONS qualify the data by saying the NHS might have better data.

The BHRUT letter listing asthma deaths is below:

The data is below: the first table on list lists 32 child deaths over 2 years. My request lists asthma, I will check if any other deaths are included.

The discrepancy between the ONS and BHRUT matters because if the Imperial study relied upon by the London Mayor to judge child asthma could mean the Mayor is underestimating deaths significantly.