Breaking the chain of intergenerational violence
People subjected to violence, adverse experiences in childhood are more likely to abuse older generations
University of Tokyo
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To offer a clearer view of the connection between ACEs and intergenerational violence, the effects of other variables were accounted for and excluded, notably: sex, age, educational attainment, family living together, employment status, marital status, equivalent income, self-rated health, depression, mental illness other than depression, alcohol consumption, and frequency of going out (at least once a month).
view moreCredit: Koga et al. 2024, JAMA Network Open
New research shows the connection between adverse childhood experiences (ACEs), such as physical or emotional abuse, and an increased risk of people growing up to be abusive against older generations. While generational trauma is known to be passed down from parent to child, the study showed that it can also reverberate upwards from parent to older generations. A survey of over 13,000 people in Japan found that about half had one or more ACEs. Of these, 8.5% self-reported committing some form of physical or verbal abuse against people aged over 65. An important contributing factor was the person’s mental and physical health, both of which are known to be affected by ACEs. By better understanding the causes of intergenerational violence, researchers hope to develop guidelines and support to help people break the chain.
You may have heard the old saying “spare the rod, spoil the child.” However, much to the contrary, studies have shown that subjecting children to physical punishment or abuse, emotional abuse, neglect or household dysfunction has long-lasting negative effects on their physical and mental health. Referred to as adverse childhood experiences, this abuse can lead to a self-perpetuating cycle. Later, the children of parents subjected to ACEs are more likely to experience some form of abuse or neglect too.
While ACEs are known to increase the risk of generational violence being passed down, a new study by a team including researchers from the University of Tokyo has shown that this behavior can also travel upwards.
“Our study confirmed that people who had adverse childhood experiences (when aged zero to18), had a higher risk of committing violence and verbal abuse against adults aged 65 and older. The study also showed that psychological factors were the most important contributor,” explained lead author Chie Koga, project assistant professor from the Research Center for Advanced Science and Technology at the University of Tokyo.
The research team studied 13,318 survey responses by women and men (almost evenly split) aged 20 to 64 in Japan. They found that those who reported a higher number of ACEs were more likely to commit physical or verbal abuse against older adults. The ACEs included were: interpersonal loss (parental loss or divorce), family psychopathy (parental mental disease and violence in family), abuse (physical and psychological) and neglect.
Results showed that 8.5% of participants self-reported committing some form of abuse against older adults. Almost half of the respondents had no ACEs, about 36% had one and about 14% had two or more. The risk of perpetuating elder abuse was over three times higher for people with one ACE and almost eight times higher for people with two or more ACEs, compared to those without.
“My hypothesis is that some forms of violence are due mainly to socioenvironmental factors. I believe that violence is the last resort that an individual takes to protect their dignity,” said Koga. “However, especially in Japanese society, the idea that violence is soley the fault of the person who commits it and that they alone are responsible for their own actions is rampant. One reason for this is the enormous lack of research, so this study is one way to advance research in violence epidemiology.”
Other factors which most notably contribute to whether a person with ACEs committed elder abuse included depression, other mental illnesses and how respondents rated their health. Lesser but still relevant factors were living arrangements, marital status, income and whether the person went out at least once a month.
“The results of these studies indicate that the cycle of violence can extend to all vulnerable groups. At the same time, one of the social and environmental risk factors for elder abuse has been newly identified, and the importance of preventing violence has been reemphasized,” said Koga. “However, it’s important to note that not all people with ACEs are repeat offenders of violence. Therefore, we would like to examine the mitigating factors in the future.”
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Paper
Chie Koga, Taishi Tsuji, Masamichi Hanazato, Atsushi Nakagomi, Takahiro Tabuchi. Intergenerational Chain of Violence, Adverse Childhood Experiences, and Elder Abuse Perpetration. JAMA Network Open. 27th September 2024.
doi: 10.1001/jamanetworkopen.2024.36150
Useful Links:
RCAST: https://www.rcast.u-tokyo.ac.jp/en/
Funding:
This study was supported by the Japan Society for the Promotion of Science (JSPS) KAKENHI Grant Numbers (21H04856; 20K10467; 20K19633; 20K13721, 24K16531), the JST Grant Number JPMJPF2017, the Health Labor Sciences Research Grant 21HA2016, the grant for 2021–2022 Strategic Research Promotion of Yokohama City University) (No. SK202116) and the research program on “Using Health Metrics to Monitor and Evaluate the Impact of Health Policies,” conducted at the Tokyo Foundation for Policy Research. Dr. Koga had access to all data from the study and is responsible for the completeness of the data and the accuracy of the data analysis.
Competing interests
None
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Journal
JAMA Network Open
Method of Research
Survey
Subject of Research
People
Article Title
Intergenerational Chain of Violence, Adverse Childhood Experiences, and Elder Abuse Perpetration
Article Publication Date
27-Sep-2024
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