Derivation of a clinical-radiological scoring system to predict foreign body aspiration in children

Table 2 Multivariate logistic regression model to identify significant predictors and derivation of the weighted risk score for foreign body aspiration

Clinico-radiological variables	Regression coefficient	Adjusted OR (95%CI)	P value	Weight score
Definitive history of choking	0.58	1.79 (0.94-3.41)	0.077	2
Respiratory distress	-0.08	0.92 (0.37-2.31)	0.864	1
Absence of concurrent URI	1.44	4.21 (2.11-8.40)	< 0.001	4
No prior history of reactive airway disease	1.01	2.77 (1.29-5.92)	0.009	3
Unilateral decreased air entry/wheeze	0.86	2.37 (1.25-4.51)	0.008	2
Tachypnea	-0.91	0.40 (0.19-0.87)	0.021	1
Unilateral hyperinflation	1.32	3.73 (1.91-7.31)	< 0.001	4
Total score				17

CI: Confidence interval; OR: Odds ratio; URI: Upper respiratory tract infection.