I came across this report from last year, as there have been two recent tv news stories about CPVA, and in each they focused on violent daughters.
I wasn't sure if these news stories reflected that in fact the majority of child on parent violence is by daughters.
So this report is from a few months ago, and in fact the figures are that the majority of victims are women, and the majority of perpetrators male, with an increase during lockdown.
This is just another negative impact that lockdowns have had on women.
www.law.ox.ac.uk/sites/files/oxlaw/final_report_capv_in_covid-19_aug20.pdf
The report is full of woke languate, ie referring to gender not sex even though the project was run by four women academics. 
www.law.ox.ac.uk/content/experiences-adolescent-parent-violence-covid-19-pandemic