Comparison of out-of-pocket expenditure and catastrophic health expenditure for severe disease by the health security system: based on end-stage renal disease in South Korea

Table 3 Annual healthcare utilization for the NHI and MA programs for the 6-year study period

Classification	NHI^a) n = 237 (%)	MA^b) n = 68 (%)	χ² score	p-value
Classification	NHI^a) n = 237 (%)	MA^b) n = 68 (%)	F score	p-value
Emergency-room (n = 76)
Visit rate (%)	57 (24.1)	19 (27.9)	0.43	0.513^*)
Number of visits ±SE^c)	1.7 ± 0.2	1.6 ± 0.4	0.08	0.701^*)
Admission (n = 127)
Admission rate (%)	93 (39.2)	34 (50.0)	2.52	0.113^*)
Number of admission ±SE^c)	2.0 ± 0.2	2.1 ± 0.3	0.55	0.816^*)
Outpatient department visits (n = 302)
Visit rate (%)	235 (99.2)	67 (98.5)	0.21	0.644^*)
Number of visits ±SE^c)	75.2 ± 62.6	92.2 ± 71.9	0.25	0.620^*)

^a)National Health Insurance
^b)Medical Aid, Medical Aid type 1 (n = 55) and Medical Aid type 2 (n = 13)
^c)Adjusted for gender, age, type of healthcare service, and number of comorbidities
^*)The p-value for ho was > = 0.05 (ho: The utilization rate or frequency is the same for the NHI and MA programs)

ISSN: 1475-9276