Women's Safety in Traffic

I can't say I notice women cyclists being any more dangerous than men. I've spoken to two people recently having seen them filter down the inside of buses; one man, one woman. Both were appreciative of the point; the man even stopped me a little way up the road to thank me again.
He was also wearing headphones; I didn't bring this up. For one thing I like to listen to music on the bike occasionally and for another I think it is too general a point to bring up in that situation. Advice is only going to have an effect if you can point to something specific they have done; like filtering alongside a large vehicle or not looking behind before they turned in front of you.
Also as I have mentioned on the Cycle Training forum the majority of people coming for free training through Tower Hamlets recently have been women: they don't seem hampered by foolish pride from recognising that they might have something to learn. Generally what they lack is confidence. But confidence and competence are not the same thing and the most reckless cycling I see tends to be by young men who are too sure of themselves. Perhaps the key word there is 'young'.