I won't do your research, but here's a few leads:

Centre for Disease Control & U.S. Department of Justice. National Intimate Partner and Sexual Violence Survey (NISVS) Dec. 2011: within the last 12 months an estimated 5,365,000 men and 4,741,000 women were victims of intimate partner physical violence. (Black, M.C. et al., 2011, Tables 4.1 and 4.2)

Stats Canada: a number of studies.

https://en.wikipedia.org/wiki/Domestic_violence_against_men 

Watson, Dorothy; Parsons, Sara (2005). Domestic Abuse of Women and Men in Ireland: Report on the National Study of Domestic Abuse (PDF). Dublin: National Crime Council of Ireland. p. 169. Retrieved June 28, 2014.

Kingsnorth, Rodney F.; MacIntosh, Randall C. (September 2007). "Intimate Partner Violence: The Role of Suspect Gender in Prosecutorial Decision-Making" (PDF). Justice Quarterly. 24 (3): 460–494. doi:10.1080/07418820701485395. Retrieved June 28, 2014.

And plenty more. Write back when you've done your research.