You may be interested in a new analysis from Elsevier of publications by gender. Here’s an article on today’s Inside Higher Ed: https://www.insidehighered.com/news/2017/03/08/study-analyzes-research-outputs-and-impact-across-gender. The entire report is linked from the article and is available here: https://www.elsevier.com/__data/assets/pdf_file/0008/265661/ElsevierGenderReport_final_for-web.pdf.