Don't know how they're defining children, but from CDC data for 2002, we have:
For "children" age 0-19:
Unintentional Injuries (selected line items)
Motor Vehicle Traffic: 7670
Drownings: 1158
Unintentional Firearms Deaths: 167
Homocides by Firearm: 1830
Over 1500 of the firearm homocide deaths are in the 15-19 age range, so you're starting to get into the gangbangers here, is my take.
Here's the source for that:
http://webapp.cdc.gov/sasweb/ncipc/leadcaus10.html
Go to the source article in the Star. It gave me a good laugh at something that a normally far left fishwrap would put something in that we could use to verbally abuse their ideas with.
Don't know how they're defining children, but from CDC data for 2002, we have:
In the dictionary "birth to puberty" ie 11-12. Most governmental agencies to 11-13 defined at child.
Only anti gun agencies define children beyond age of 13.