Study finds a woman on corporate board is

associated with greater integrity of financial reporting (fewer restatements).  Full study is reported in December 2012 issue of Accounting Horizons; this summary highlights some of the findings.   Authors surmise it to be attributed to independence issues

   http://www.accountingtoday.com/news/Women-Corporate-Boards-Encourage-Better-Financial-Reporting-64656-1.html