More than 1 in 4 children have been exposed to physical violence between their parents at some time, 1 in 9 of them during the past year.

Almost half of U.S. youth who experience violence, abuse or crime have had at least one of their victimizations known to school, police or medical authorities.

Child abuse declined nationally in 2008 compared to 2007.

WASHINGTON, Oct.

A new study from the University of New Hampshire finds that U.S. children are routinely exposed to even more violence and abuse than has been previously recognized, with nearly half experiencing a physical assault in the study year.