It feels remarkably low, like a massive massive under-count of a very serious serious problem. The article does mention this, and some of the potential causes:

> Experts cautioned that the figures were likely to be a serious underestimate as staff are often deterred from making complaints when patients abuse them.

There are something like a million patient contacts every 36 hours in the English NHS. So over 5 years that's something like 1.2billion patient contacts.

https://www.england.nhs.uk/wp-content/uploads/2022/03/spoken...