Subgroup Analysis of Outcomes According to NFB
Batteries and magnets were significantly more hazardous than all other NFB. Epistaxis and nasal discharge were significantly more common in children who inserted batteries and magnets than other NFB (OR= 14.3 and 10.4 for epistaxis and discharge, respectively, compared to other NFB). The risk for nasal discharge was significantly higher in non-organic than in organic NFB (OR=1.86, p=0.02).