epidemiology of domestic violence epidemiology of domestic violence domestic violence occurs across the world, in various cultures, and affects people across society, at all levels of economic status; however, indicators of lower socioeconomic status (such as unemployment and low income) have been shown to be risk factors for higher levels of domestic violence in several studies. in the united states, according to the bureau of justice statistics in 1995, women reported a six times greater rate of intimate partner violence than men. however, studies have found that men are much less likely to report victimization in these situations. this article is about epidemiology of domestic abuse. for other related topics, see outline of domestic violence. part of a series onviolence against women killing bride burning dowry death honor killing femicide infanticide matricide pregnant women sati sororicide uxoricide sexual assault and rape child sexual initiation forced prostitution sexual slavery 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that gay and lesbian couples experience domestic violence at the same frequency as heterosexual couples, other sources report that domestic violence rates among gay, lesbian and bisexual people might be higher but more under-reported. by demographic against women main article: violence against women a world map displaying women's physical security, 2011 according to various national surveys, the percentage of women who were ever physically assaulted by an intimate partner varies substantially by country: barbados (30%), canada (29%), egypt (34%), new zealand (35%), switzerland (21%), united states (33%). some surveys in specific places report figures as high as 50–70% of women who were ever physically assaulted by an intimate partner. others, including surveys in the philippines and paraguay, report figures as low as 10%. statistics published in 2004 show that the rate of domestic violence victimisation for indigenous women in australia may be 40 times the rate for non-indigenous women. 80% of women surveyed in rural egypt said that beatings were common and often justified, particularly if the woman refused to have sex with her husband. up to two-thirds of women in certain communities in nigeria's lagos state say they are victims to domestic violence. in turkey 42% of women over 15 have suffered physical or sexual violence. in india, around 70% of women are victims of domestic violence. between 1993 and 2001, u.s. women reported intimate partner violence almost seven times more frequently than men (a ratio of 20:3). statistics for the year 1994 showed that more than five times as many females reported being victimized by an intimate than did males. pregnancy main article: domestic violence and pregnancy domestic violence during pregnancy can be missed by medical professionals because it often presents in non-specific ways. a number of countries have been statistically analyzed to calculate the prevalence of this phenomenon: uk prevalence: 3.4% usa prevalence: 3.2–33.7% ireland prevalence: 12.5% rates are higher in teenagers severity and frequency increase postpartum (10% antenatally vs. 19% postnatally); 21% at three months post partum there are a number of presentations that can be related to domestic violence during pregnancy: delay in seeking care for injuries; late booking, non-attenders at appointments, self-discharge; frequent attendance, vague problems; aggressive or over-solicitous partner; burns, pain, tenderness, injuries; vaginal tears, bleeding, stds; and miscarriage. domestic violence against a pregnant woman can also affect the fetus and can have lingering effects on the child after birth. physical abuse is associated with neonatal death (1.5% versus 0.2%), and verbal abuse is associated with low birth weight (7.6% versus 5.1%). against men main articles: domestic violence § gender differences, and domestic violence against men due to social stigmas regarding male victimization, men who are victims of domestic violence face an increased likelihood of being overlooked by healthcare providers. while much attention has been focused on domestic violence against women, researchers showed that also domestic violence that men experience from other men needs also attention. the issue of victimization of men by women has been contentious, due in part to studies which report drastically different statistics regarding domestic violence. severe perpetration of physical violence tends to be committed by men, and victimization reports generally show women being more likely to experience domestic violence than men. a 2013 review of the literature that combined perpetration and victimization reports indicate that, worldwide, most studies only look at female victimization. the review examined studies from five continents and the correlation between a country's level of gender inequality and rates of domestic violence. the authors found that when partner abuse is defined broadly to include emotional abuse, any kind of hitting, and who hits first, partner abuse is relatively even. they also stated if one examines who is physically harmed and how seriously, expresses more fear, and experiences subsequent psychological problems, domestic violence is significantly gendered toward women as victims. sherry hamby argues that victimization reports are more reliable than perpetration reports and therefore studies showing women being more likely to suffer domestic violence than men are the accurate ones. a 2016 meta-analysis indicated that the only risk factors for the perpetration of intimate partner violence that differ by gender are witnessing intimate partner violence as a child, alcohol use, male demand, and female withdrawal communication patterns. among lgbt people further information: domestic violence § same-sex relationships some sources state that gay and lesbian couples experience domestic violence at the same frequency as heterosexual couples, while other sources state domestic violence among gay and lesbian couples might be higher than among heterosexual couples, that gay, lesbian, and bisexual individuals are less likely to report domestic violence that has occurred in their intimate relationships than heterosexual couples are, or that lesbian couples experience domestic violence less than heterosexual couples do. by contrast, some researchers commonly assume that lesbian couples experience domestic violence at the same rate as heterosexual couples, and have been more cautious when reporting domestic violence among gay male couples. in a survey by the canadian government, some 19% of lesbian women reported being victimized by their partners. other research reports that lesbian relationships exhibit substantially higher rates of physical aggression. against children main articles: child abuse, child protection, and child sexual abuse the u.s department of health and human services reports that for each year between 2000 and 2005, "female parents acting alone" were most common perpetrators of child abuse. when it comes to domestic violence towards children involving physical abuse, research in the uk by the nspcc indicated that "most violence occurred at home" (78%). forty to sixty percent of men and women who abuse other adults also abuse their children. girls whose fathers batter their mothers are 6.5 times more likely to be sexually abused by their fathers than are girls from non-violent homes. in china in 1989, 39,000 baby girls died during their first year of life because they did not receive the same medical care that would be given to a male child. in asia alone, about one million children working in the sex trade are held in slavery-like conditions. between teenagers teen dating violence is a pattern of controlling behavior by one teenager over another teenager in the context of a dating relationship. while there are many similarities to "traditional" domestic violence, there are also some differences. teens are much more likely than adults to become isolated from their peers as a result of controlling behavior by their romantic partner. also, for many teens the abusive relationship may be their first dating experience, and so they may lack a "normal" dating experience with which to compare it. while teenagers are trying to establish their sexual identities, they are also confronting violence in their relationships and exposure to technology. studies document that teenagers are experiencing significant amounts of dating or domestic violence. depending on the population studied and the way dating violence is defined, between 9 and 35% of teens have experienced domestic violence in a dating relationship. when a broader definition of abuse that encompasses physical, sexual, and emotional abuse is used, one in three teen girls is subjected to dating abuse." additionally, a significant number of teens are victims of stalking by intimate partners. although involvement with romantic relationships is a critical aspect of adolescence, these relationships also present serious risks for teenagers. unfortunately, adolescents in dating relationships are at greater risk of intimate partner violence than any other age group. approximately one-third of adolescent girls are victims of physical, emotional, or verbal abuse from a dating partner. estimates of sexual victimization range from 14% to 43% of girls and 0.3% to 36% for boys. according to the center for disease control, in 2009, nearly 10% of students nationwide had been intentionally hit, slapped, or physically hurt by their boyfriend or girlfriend. twenty-six percent of girls in a relationship reported being threatened with violence or experiencing verbal abuse; 13% reported being physically hurt or hit. measuring measures of the incidence of violence in intimate relationships can differ markedly in their findings depending on the measures used. care is needed when using domestic violence statistics to ensure that both gender bias and under-reporting issues do not affect the inferences that are drawn from the statistics. some researchers, such as michael p. johnson, suggest that where and how domestic violence is measured also affects findings, and caution is needed to ensure statistics drawn from one class of situations are not applied to another class of situations in a way that might have fatal consequences. other researchers, such as david murray fergusson, counter that domestic violence prevention services, and statistics that they produce, target the extreme end of domestic violence and preventing child abuse rather than domestic violence between couples. europe a bulgarian poster urging people to open their eyes about domestic violence against women a 1992 council of europe study on domestic violence against women found that one in four women experience domestic violence over their lifetimes and between 6 and 10% of women suffer domestic violence in a given year. in the european union, dv is a serious problem in the baltic states. these three countries – estonia, latvia, and lithuania – have also lagged behind most post-communist countries in their response to dv. the problem in these countries is severe, and in 2013 a dv victim won a european court of human rights case against lithuania. united kingdom the british crime survey for 2006–2007 reported that 0.5% of people (0.6% of women and 0.3% of men) reported being victims of domestic violence during that year and 44.3% of domestic violence was reported to the police. according to the survey, 312,000 women and 93,000 men were victims of domestic violence. the northern ireland crime survey for 2005 reported that 13% of people (16% of women and 10% of men) reported being victims of domestic violence at some point in their lives. the national study of domestic abuse for 2005 reported that 213,000 women and 88,000 men reported being victims of domestic violence at some point in their lives. according to the study, one in seven women and one in sixteen men were victims of severe physical abuse, severe emotional abuse, or sexual abuse. in the united kingdom, the police estimate that around 35% of domestic violence against women is actually reported. a 2002 women's aid study found that 74% of separated women suffered from post-separation violence. canada in canada, the assembly of first nations evaluation of the canada prenatal nutrition program conducted by ciet offers an inclusive and relatively unbiased national estimate. it documented domestic violence in a random sample of 85 first nations across canada: 22% (523 of 2,359) of mothers reported suffering abuse in the