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The greatest risk was found in the first year following the assault, increasing to three times the risk of being diagnosed with mental illness, compared with children not assaulted. Mood and anxiety disorders were the most common diagnoses.
“From a clinical and policy perspective, our study highlights that there is a critical opportunity for health care clinicians to support children in the first year following physical assault,” Natasha Saunders, MD, MSc, of the Hospital for Sick Children, Toronto, and colleagues wrote. “There is a need to develop and implement targeted mental illness prevention, screening, and treatment programs for assaulted children.”
The findings were published online in JAMA Network Open.
While it has been well established that children exposed to assault have an increased risk for subsequent mental illness, Dr. Saunders and coinvestigators noted that using an age-matched, population-based cohort study would enable them to obtain detailed information on the patterns and timing of subsequent psychiatric diagnoses.
To that end, the researchers used several medical databases in Ontario to find 5,487 children (infants to age 13 years) who required an ED visit or hospitalization for a physical assault in Ontario between 2006 and 2014.
These children were matched on a 1:4 basis with 21,948 children not exposed to physical assault. The children were followed until their 18th birthday or until the study ended in March 2019.
The researchers found that more than a third of the children (39%) who were exposed to assault received a mental health diagnosis, according to health records, compared with 23% of unexposed children.
Mood and anxiety disorders were the most common diagnoses among children exposed to assault (16.2% vs. 10.6%, respectively); followed by select childhood behavior disorders, such as ADHD, oppositional defiant disorder, or conduct disorder (9.9% vs. 5.2%); and substance use disorders (2.4% vs. 0.4%).
Triple risk of mental illness in first year
The researchers found that the children exposed to assault were nearly twice as likely to be diagnosed with a mental illness over a median follow-up of 7 years, compared with those not exposed to assault (adjusted hazard ratio, 1.96; 95% confidence interval, 1.85,2.08).
In the year following the assault, children exposed to assault bore three times the risk of being diagnosed with a mental illness, compared with unexposed children (aHR, 3.08; 95% CI, 2.68,3.54).
In addition, the children who had been assaulted were more likely to be diagnosed in an acute care setting than those who were not assaulted (14% vs. 2.8%).
The children who had been assaulted were an average age of 7 years and were more often boys (55% vs. 45%). Children who were assaulted were also more likely to have mothers with mental illness (35% vs. 19%).
The investigators noted that the study likely underestimated the number of children exposed to assault, as many do not end up in the ED.
In addition to highlighting the need for medical personnel to support children in the first year following assault, the investigators wrote that “our results also advocate for accessible mental health care outside of the acute setting and for care that addresses the social and health needs of mothers, who themselves have high social and health risks.”
This study received funding from the National Foundation to End Child Abuse and Neglect and the Ontario Ministry of Health and the Ministry of Long-Term Care. Dr. Saunders reported receiving personal fees from The BMJ Group, Archives of Diseases in Childhood outside the submitted work.
A version of this article first appeared on Medscape.com.
The greatest risk was found in the first year following the assault, increasing to three times the risk of being diagnosed with mental illness, compared with children not assaulted. Mood and anxiety disorders were the most common diagnoses.
“From a clinical and policy perspective, our study highlights that there is a critical opportunity for health care clinicians to support children in the first year following physical assault,” Natasha Saunders, MD, MSc, of the Hospital for Sick Children, Toronto, and colleagues wrote. “There is a need to develop and implement targeted mental illness prevention, screening, and treatment programs for assaulted children.”
The findings were published online in JAMA Network Open.
While it has been well established that children exposed to assault have an increased risk for subsequent mental illness, Dr. Saunders and coinvestigators noted that using an age-matched, population-based cohort study would enable them to obtain detailed information on the patterns and timing of subsequent psychiatric diagnoses.
To that end, the researchers used several medical databases in Ontario to find 5,487 children (infants to age 13 years) who required an ED visit or hospitalization for a physical assault in Ontario between 2006 and 2014.
These children were matched on a 1:4 basis with 21,948 children not exposed to physical assault. The children were followed until their 18th birthday or until the study ended in March 2019.
The researchers found that more than a third of the children (39%) who were exposed to assault received a mental health diagnosis, according to health records, compared with 23% of unexposed children.
Mood and anxiety disorders were the most common diagnoses among children exposed to assault (16.2% vs. 10.6%, respectively); followed by select childhood behavior disorders, such as ADHD, oppositional defiant disorder, or conduct disorder (9.9% vs. 5.2%); and substance use disorders (2.4% vs. 0.4%).
Triple risk of mental illness in first year
The researchers found that the children exposed to assault were nearly twice as likely to be diagnosed with a mental illness over a median follow-up of 7 years, compared with those not exposed to assault (adjusted hazard ratio, 1.96; 95% confidence interval, 1.85,2.08).
In the year following the assault, children exposed to assault bore three times the risk of being diagnosed with a mental illness, compared with unexposed children (aHR, 3.08; 95% CI, 2.68,3.54).
In addition, the children who had been assaulted were more likely to be diagnosed in an acute care setting than those who were not assaulted (14% vs. 2.8%).
The children who had been assaulted were an average age of 7 years and were more often boys (55% vs. 45%). Children who were assaulted were also more likely to have mothers with mental illness (35% vs. 19%).
The investigators noted that the study likely underestimated the number of children exposed to assault, as many do not end up in the ED.
In addition to highlighting the need for medical personnel to support children in the first year following assault, the investigators wrote that “our results also advocate for accessible mental health care outside of the acute setting and for care that addresses the social and health needs of mothers, who themselves have high social and health risks.”
This study received funding from the National Foundation to End Child Abuse and Neglect and the Ontario Ministry of Health and the Ministry of Long-Term Care. Dr. Saunders reported receiving personal fees from The BMJ Group, Archives of Diseases in Childhood outside the submitted work.
A version of this article first appeared on Medscape.com.
The greatest risk was found in the first year following the assault, increasing to three times the risk of being diagnosed with mental illness, compared with children not assaulted. Mood and anxiety disorders were the most common diagnoses.
“From a clinical and policy perspective, our study highlights that there is a critical opportunity for health care clinicians to support children in the first year following physical assault,” Natasha Saunders, MD, MSc, of the Hospital for Sick Children, Toronto, and colleagues wrote. “There is a need to develop and implement targeted mental illness prevention, screening, and treatment programs for assaulted children.”
The findings were published online in JAMA Network Open.
While it has been well established that children exposed to assault have an increased risk for subsequent mental illness, Dr. Saunders and coinvestigators noted that using an age-matched, population-based cohort study would enable them to obtain detailed information on the patterns and timing of subsequent psychiatric diagnoses.
To that end, the researchers used several medical databases in Ontario to find 5,487 children (infants to age 13 years) who required an ED visit or hospitalization for a physical assault in Ontario between 2006 and 2014.
These children were matched on a 1:4 basis with 21,948 children not exposed to physical assault. The children were followed until their 18th birthday or until the study ended in March 2019.
The researchers found that more than a third of the children (39%) who were exposed to assault received a mental health diagnosis, according to health records, compared with 23% of unexposed children.
Mood and anxiety disorders were the most common diagnoses among children exposed to assault (16.2% vs. 10.6%, respectively); followed by select childhood behavior disorders, such as ADHD, oppositional defiant disorder, or conduct disorder (9.9% vs. 5.2%); and substance use disorders (2.4% vs. 0.4%).
Triple risk of mental illness in first year
The researchers found that the children exposed to assault were nearly twice as likely to be diagnosed with a mental illness over a median follow-up of 7 years, compared with those not exposed to assault (adjusted hazard ratio, 1.96; 95% confidence interval, 1.85,2.08).
In the year following the assault, children exposed to assault bore three times the risk of being diagnosed with a mental illness, compared with unexposed children (aHR, 3.08; 95% CI, 2.68,3.54).
In addition, the children who had been assaulted were more likely to be diagnosed in an acute care setting than those who were not assaulted (14% vs. 2.8%).
The children who had been assaulted were an average age of 7 years and were more often boys (55% vs. 45%). Children who were assaulted were also more likely to have mothers with mental illness (35% vs. 19%).
The investigators noted that the study likely underestimated the number of children exposed to assault, as many do not end up in the ED.
In addition to highlighting the need for medical personnel to support children in the first year following assault, the investigators wrote that “our results also advocate for accessible mental health care outside of the acute setting and for care that addresses the social and health needs of mothers, who themselves have high social and health risks.”
This study received funding from the National Foundation to End Child Abuse and Neglect and the Ontario Ministry of Health and the Ministry of Long-Term Care. Dr. Saunders reported receiving personal fees from The BMJ Group, Archives of Diseases in Childhood outside the submitted work.
A version of this article first appeared on Medscape.com.
FROM JAMA NETWORK OPEN