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Kids' Poor Bedtime Habits May Bring ADHD Misdiagnosis

Study Suggests That No Set Bedtime, Bed Sharing Linked to Behavior Problems
WebMD Health News
Reviewed by Laura J. Martin, MD

Sept. 20, 2011 -- A child's bedtime habits could result in behavior problems -- and a misdiagnosis of ADHD, a new study suggests.

The study is based on a survey of 704 parents of children ages 2 to 13. The parents, mostly mothers, filled out brief questionnaires in randomly selected pediatricians' waiting rooms.

The results strongly suggest that several behavior problems are much more common in kids who:

  • Have no set bedtime
  • Share a bed with parents or siblings

These kids, the study found, are much more likely than regular-bedtime, sleep-alone kids to:

  • Throw tantrums or have meltdowns
  • Hit, kick, or push their parents
  • Have low self-confidence
  • Have their parents get notes from school about their behavior
  • Have their parents advised that their children should take medicine for behavior or learning problems

Not all these behaviors are typical of kids with ADHD (attention deficit hyperactivity disorder). They are not sufficient or even necessary for a diagnosis of ADHD. Yet study leader Robert M. Pressman, PhD, a child psychologist, says many such kids have been diagnosed with ADHD.

"It looks and feels like ADHD but it is not," Pressman tells WebMD. "We are using the term 'faux ADHD' to describe it."

Parents were far more likely to report each of these symptoms if their children did not sleep alone and did not have a set bedtime.

"It was an extremely strong association," Pressman says. "We found that children who were bed sharing and who had no regular bedtime had these behaviors eight to 10 times more."

Bedtime, Sleep, and 'Faux ADHD'

Andrew Adesman, MD, chief of developmental and behavioral pediatrics at Cohen Children's Medical Center in New Hyde Park, N.Y., finds Pressman's study interesting but warns against over-interpreting the results. Adesman was not involved in the study.

"It is tempting to think that sleep problems are causing the behavior issues, but even the authors don't jump to that conclusion," Adesman tells WebMD. "It is worth noting that while we know sleep deficits can cause behavioral issues, we also know that kids with ADHD have greater problems with sleep difficulties."

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