Table 6.

The association between positive foreign body aspiration and the weighted risk score

			Weighted risk score
			≤1	2–3	4–5	> 5	Total	P value
FBA	Positive	N	7	55	43	34	139	< 0.001*
		%	15.6%	73.3%	87.8%	100.0%	68.5%
	Negative	N	38	20	6	0	64
		%	84.4%	26.7%	12.2%	0.0%	31.5%
	Total		45	75	49	34	203

*significant at p < 0.05; FBA: foreign body aspiration