A WHO report has shown that 30% of women worldwide are victims of domestic violence and that 40% of women killed worldwide are killed by an intimate partner.

Link to the report: who.int and first few paragraphs of the exec. summary:

The results indicate that violence by a male intimate partner (also called “domestic violence”) is widespread in all of the countries included in the Study. However, there was a great deal of variation from country to country, and from setting to setting. This indicates that this violence is not inevitable.

Physical violence by intimate partners

The proportion of ever-partnered women who had ever suffered physical violence by a male intimate partner ranged from 13% in Japan city to 61% in Peru province, with most sites falling between 23% and 49%. The prevalence of severe physical violence (a woman being hit with a fist, kicked, dragged, choked, burnt on purpose, threatened with a weapon, or having a weapon used against her) ranged from 4% in Japan city to 49% in Peru province. The vast majority of women physically abused by partners experienced acts of violence more than once.

Sexual violence by intimate partners

The range of lifetime prevalence of sexual violence by an intimate partner was between 6% (Japan city and Serbia and Montenegro city) and 59% (Ethiopia province), with most sites falling between 10% and 50%. While in most settings sexual violence was considerably less frequent than physical violence, sexual violence was more frequent in Bangladesh province, Ethiopia, province and Thailand city.

Physical and sexual violence by intimate partners

For ever-partnered women, the range of lifetime prevalence of physical or sexual violence, or both, by an intimate partner was 15% to 71%, with estimates in most sites ranging from 30% to 60%. Women in Japan city were the least likely to have ever experienced physical or sexual violence, or both, by an intimate partner, while the greatest amount of violence was reported by women living in provincial (for the most part rural) settings in Bangladesh, Ethiopia, Peru, and the United Republic of Tanzania. Likewise, regarding current violence – as defined by one or more acts of physical or sexual violence in the year prior to being interviewed – the range was between 3% (Serbia and Montenegro city) and 54% (Ethiopia province), with most sites falling between 20% and 33%. These findings illustrate the extent to which violence is a reality in partnered women’s lives, with a large proportion of women having some experience of violence during their partnership, and many having recent experiences of abuse.

Emotionally abusive acts and controlling behaviours

Emotionally abusive acts by a partner included: being insulted or made to feel bad about oneself; being humiliated in front of others; being intimidated or scared on purpose; or being threatened directly, or through a threat to someone the respondent cares about. Across all countries, between 20% and 75% of women had experienced one or more of these acts, most within the past 12 months. Data were also collected about partners’ controlling behaviours, such as: routinely attempting to restrict a woman’s contact with her family or friends, insisting on knowing where she is at all times, and controlling her access to health care. Significantly, the number of controlling behaviours by the partner was associated with the risk of physical or sexual violence, or both. [Rest of the report.]