I'm going waaaay out on a limb and will say probably 97 - 99% men. Where's the 'who cares?' option in the poll.
Don't mean to be an ass, but seriously...
The ongoing survey of Bitcoin users (here) has some intriguing results already: TheDon't mean to be an ass, but seriously...
'average Bitcoin user' is male (96%)
http://www.zerohedge.com/news/2013-03-10/demographics-bitcoin?page=6
Does the 96% being off by 1% of my guess fall into the margin of error of that survey?
.. and I did go ahead and vote in the poll too. I'm such a hypocrite!