His own video where he goes from something like 238 adverse reactions from covid to 5.
He decides that only 5 reactions of that data set matter because the others may have been precautionary hospitalisations.
He decides only reactions requiring assisted breathing count from memory.
Have you watched his videos? All you have to do is read the studies he references as you watch them to watch the narrative fall apart.
You could just watch his own video critically to come to a similar conclusion.
"He does a different analysis, however. Instead of comparing the number of Covid hospitalisations among vaccinated and unvaccinated children, he compares the number of serious Covid hospitalisations by his own definition (five, who received oxygen treatment) with the number of adverse events reported following vaccination (22), thereby seeming to suggest that the risk of vaccination may outweigh the risk of Covid-19 to children."
In any case, Dr Campbell does not count the total number of hospitalisations with Covid (288). He counts only the hospitalisations that needed oxygen treatment (five), with the
justification that he believes “a lot are being admitted on a precautionary basis”.
https://fullfact.org/health/john-campbell-youtube-singapore-children/