Day Care May Not Raise Behavior Woes in Kids After All
The study also had other limitations that may have affected the results, said Alan Hilfer, director of psychology at Maimonides Medical Center, in New York City.
For instance, the follow-up period -- until the children were 36 months of age -- was relatively short and behavioral problems could first appear later than that, Hilfer said.
Also, Hilfer pointed out, the authors relied only on mothers' reports of whether their child was showing other behavioral disturbances, which is not always a reliable measure.
Still, study author Dearing said, it's possible that "providing access to high-quality care ... and generous parental-leave policies may be critical to realizing the benefits of care without realizing the harm."
The U.S. National Library of Medicine has more on child care.