Age <4 years Age >4 years P value
Right-side insertion 60% 50% P=0.04
Organic NFB 39% 19% P<0.001
Batteries and magnets 1.5% 6.5% P=0.03
Time from insertion until arrival to ED
Less than 24 hours
55%
70%
P=0.03
Less than one week
10%
7%
More than one week
35%
23%