Among the kids who snored at both ages, 35 percent showed signs of behavioral problems, while 10 percent in nonsnorers, and 12 percent in kids who only snored for one year, showed such signs.
Researchers studied 249 mother-child pairs and found the children who snored at both age 2 and age 3 were nearly 3.5 times more likely to have signs of behavioral issues when compared with those who did not snore at these ages, or who only snored during one of those years.