Table 3. Multivariable GLM results for the total healthcare cost for one year among ECMO survivors.

Variables	Multivariable model, Exp (B) (95% CI)	P
Age, years	1.01 (1.00, 1.01)	<0.001
Sex, male	1.07 (1.04, 1.10)	<0.001
Residence at ECMO support
Urban area	1
Rural area	1.02 (1.00, 1.04)	0.189
Year of ECMO support
2005–2008	1
2009–2012	1.34 (1.28, 1.40)	<0.001
2013–2015	1.65 (1.57, 1.72)	<0.001
2016–2018	2.07 (1.98, 2.16)	<0.001
Annual income level at ECMO support
Q1 (lowest)	1
Q2	1.01 (0.97, 1.04)	0.673
Q3	1.02 (0.99, 1.06)	0.174
Q4 (highest)	1.00 (0.97, 1.03)	0.957
Annual case volume of ECMO support
Q1 <15	1
Q2: 15–28	1.06 (1.02, 1.10)	0.002
Q3: 29–63	1.18 (1.14, 1.22)	<0.001
Q4 >63	1.59 (1.53, 1.64)	<0.001
Charlson comorbidity index	1.01 (1.01, 1.02)	<0.001
Total number of hospital-visit days for 1-year	1.01 (1.00, 1.01)	<0.001
Duration of ECMO support	1.02 (1.01, 1.02)	<0.001
Length of hospital stay at ECMO support	1.01 (1.01, 1.02)	<0.001
Follow up after discharge
Follow up in the same hospital	1
Transfer to other long-term facility care center	0.92 (0.86, 0.97)	0.004
Discharge to home, and outpatient clinic follow up	1.31 (1.27, 1.35)	<0.001
Main diagnosis at ECMO treatment
Cardiac indication group	1
Respiratory indication group	0.89 (0.86, 0.93)	<0.001
Other	1.31 (1.27, 1.35)	<0.001

GLM, generalized linear regression model; ECMO, extracorporeal membrane oxygenation.