Table 2.

FBAO patient characteristics throughout study period

	FBAO patients
	N = 2,354
Age, year, mean ± SD	54.7 ± 35.0
Median (IQR)	71 (6–83)
Male, N (%)	1,195 (50.8)
Location of accident, N (%)
Home	1,620 (68.8)
Health care facility	426 (18.1)
Others	308 (13.1)
Region of foreign body, N (%)
Oral cavity	352 (15.0)
Pharynx or larynx	1,526 (64.8)
Trachea or bronchus	476 (20.2)
Patients’ condition when EMS arrival, N (%)
Normal	1,230 (52.3)
Feel dyspnea	404 (17.2)
Breathing difficulty	221 (9.4)
Respiratory arrest	33 (1.4)
Cardiopulmonary arrest	466 (19.8)
Use of prehospital Magill forceps, N (%)	383 (16.3)

Abbreviations: SD standard deviation, IQR interquartile range, EMS emergency medical service.