Table 10. Length of hospitalization and direct medical costs of childhood intussusception in South Korea.

		Cases	%	No. of patients	Mean length of hospitalization (days)	Mean direct medical costs (KRW)	Mean direct medical costs (USD)
Total		34,688	100.0	30,444	3.4	744,552	657.2
Treatment type, admission
	Enema reduction and non-admission*	3,940	11.4	3,734	1.2	238,660	210.6
	Enema reduction and admission	27,267	78.6	24,593	3.2	582,900	514.5
	Surgical treatment and admission	3,481	10.0	3,295	7.3	2,583,382	2,280.1
ICU admission		33	0.1	33	9.8	5,338,540	4,711.9
Age (yr)
	<3	28,368	81.8	25,296	3.3	717,980	633.7
	3≤, <18	6,320	18.2	5,686	3.6	863,822	762.4

KRW: Korean won, USD: US dollars, ICU: intensive care unit.

In the present study, direct medical costs did not include non-insurance medical expenses such as ultrasound cost. Therefore, the real average medical cost of intussusception may be higher than that reported in our study.

^*Non-admission included outpatient clinic visits and emergency department stays.

1 USD=1,133 KRW (exchange rate on November 15, 2018).