Are Parents The Cause Of ADHD In Kids?

Two smiling parents, their daughter's arms wrapped around her mother's neck and shouldersPreschoolers whose parents report depression and intimate partner violence may be more likely to develop attention deficit disorder/attention deficit hyperactivity disorder (ADD or ADHD) by the age of 6, new research suggests.

And young children with depressed moms may be more likely to receive prescription drugs to treat behavioral and mental health issues down the road.

“Our study indicates that preschoolers who are diagnosed with ADHD are more likely to have been exposed to both intimate partner violence and parental depression within the first three years of life than their peers not exposed to either risk factor,” said study author Dr. Nerissa Bauer, an assistant professor of pediatrics at Indiana University School of Medicine, in Indianapolis.

“There has been increasing awareness that certain psychosocial risk factors can impact the behavioral presentation of children at very young ages,” she said. Still, not all children who are exposed to maternal depression and intimate partner violence will develop ADHD, she noted.

“There are other factors that can be associated with a child’s higher likelihood of being diagnosed with ADHD, including a family history of ADHD,” Bauer explained.

ADHD symptoms can include impulsiveness, hyperactivity and difficulty focusing. Kids with ADHD may have difficulty in school, holding down jobs and sustaining relationships. They are also at greater risk for alcohol or substance abuse, depression and anxiety disorders. Treatment typically involves medication and behavioral modifications.

“Pediatricians and family practitioners know to routinely screen for the presence of these psychosocial risk factors because of the potential negative effects on the child,” Bauer said. “Families who experience intimate partner violence will need help, not only to make sure the victims stay safe from physical harm, but there [are] also psychological effects.”

The study, which appeared online Feb. 4 in the journal JAMA Pediatrics, included more than 2,400 children who were 3 years old. Parents who brought them to four different pediatric community clinics filled out questionnaires regarding their personal history of depression and domestic violence while in the pediatricians’ waiting room.

Fifty-eight caregivers reported a history of intimate partner violence and depression before their child turned 3. In addition, 69 reported a history of intimate partner violence and 704 had symptoms of depression during this time frame. Close to 66 percent of the parents reported neither depression nor intimate partner violence. Children who were exposed to intimate partner violence and/or parental depression were four times more likely to be diagnosed with ADHD by the age of 6.

What’s more, 2.9 percent of kids whose parents reported depression received prescription drugs to treat behavioral and mental health issues, compared with 1.6 percent of children whose parents did not report a history of depression. Medications included those that treat anxiety, depression and sleep problems.

While the study showed an association, it did not prove a cause-and-effect link between intimate partner violence and/or maternal depression and likelihood of an ADHD diagnosis.

Experts said the findings make sense, but more study is needed.

Today’s ADHD Numbers: Better Or Worse?

A map of ADHD

Attention-deficit/hyperactivity disorder (ADHD) is one of the most common neurobehavioral disorders of childhood. Sometimes it’s referred to as attention deficit disorder. It is usually first diagnosed in childhood and often lasts into adulthood. Children with ADHD have trouble paying attention, may sometimes act without thinking about what the result will be, and, in some cases, are overly active.

A 2003 survey found an estimated 7.8% of children aged 4-17 years had ever been given a diagnosis of ADHD in the US. This new CDC study looked at the results of the second administration of the National Survey of Children’s Health in 2007.

Rates of parent-reported ADHD diagnosis are increasing and the patterns of ADHD diagnosis are changing in the United States. We now have 5.4 million children who have been diagnosed with ADHD. That is nearly one in ten school age children with an ADHD diagnosis; a million more children than were reported in 2003. Of these children, 2.7 million are currently taking ADHD medication.

Important findings from this study:

The rate of parent-reported ADHD among children 4-17 years of age increased by 22% between 2003 and 2007, from 7.8% to 9.5%.

The rate of ADHD diagnosis increased by 42% among older teens and 53% among Hispanic children, suggesting the pattern of ADHD in the United States may be changing.

Twelve states had significant increases in ADHD, suggesting variation in diagnostic practice that may be determined by state-specific factors.

For more information, visit the CDC’s ADHD Channel.