The figure rises slightly to 61% for those who play one to four hours per month and dips to 58% for those who play more than four hours.Source: TG Daily.
The study mirrors other studies on online gaming where most of the players are female due to the many trivia, card and puzzle type games. Men tend to play more action and role-playing games, which don't work too well on mobile phones today.
Woman play most mobile games

A research from Parks Associates claims women comprise 59% of all people that play games on their mobile phones.