Partner killing by men in cohabiting and marital relationships: a comparative, cross-national analysis of data from Australia and the United States.

Using a national-level U.S. database, T. K. Shackelford (2001) calculated rates of uxoricide (the murder of a woman by her romantic partner) by relationship type (cohabiting or marital), by ages of the partners, and by the age difference between partners. Women in cohabiting relationships were 9 times more likely to be killed by their partner than were married women. Within marriages, the risk of uxoricide decreases with a woman's age. Within cohabiting relationships, middle-aged women were at greatest risk of uxoricide. The risk of uxoricide increased with greater age difference between partners. We sought to replicate the findings of Shackelford (2001) using a national-level database that includes information on more than 4,400 homicides that occurred in Australia between 1989 and 2002. Despite the higher rate of partner killing in the United States, and despite other cultural differences between the two countries, we replicated key patterns with the Australian data.