Here's some data from Reg CF in the US:  When looking at success percentages, campaigns run by women-only founders had an 87.5% success rate compared to 41% for men-only founders. Minority-only founders also had a higher success rate (46%) than men-only founders.  For more info:

http://ncfacanada.org/women-minorities-in-regulation-crowdfunding-high-success-rate-despite-low-representation-lower-funding-levels/