Table 1. The clinicopathological characteristics of all ECMO survivors.
| Variables | Median [IQR] or number (%) |
|---|---|
| Age, years | 56 [45, 65] |
| Sex, male | 4,028 (66.6) |
| Residence at ECMO support | |
| Urban area | 2,740 (45.3) |
| Rural area | 3,304 (54.7) |
| Year of ECMO support | |
| 2005–2008 | 492 (8.1) |
| 2009–2012 | 1,169 (19.3) |
| 2013–2015 | 1,784 (29.5) |
| 2016–2018 | 2,599 (43.0) |
| Annual income level at ECMO support | |
| Q1 (lowest) | 1,481 (24.5) |
| Q2 | 1,166 (19.3) |
| Q3 | 1,468 (24.3) |
| Q4 (highest) | 1,929 (31.9) |
| Annual case volume of ECMO support | |
| Q1 <15 | 1,194 (19.8) |
| Q2: 15–28 | 1,346 (22.3) |
| Q3: 29–63 | 1,862 (30.8) |
| Q4 >63 | 1,642 (27.2) |
| Charlson comorbidity index | 3 [1,4] |
| Total number of hospital-visit days for 1-year, days | 81 [48, 141] |
| Duration of ECMO support, day | 3 [1,7] |
| Length of hospital stay at ECMO support, days | 25 [15, 31] |
| Total healthcare cost for one year, USD | 46,308.0 [25,727.0, 86,924.8] |
| Self-payment by patient for 1-year | 3,960.3 [1,875.9, 8,101.7] |
| NHIS insurance coverage for 1-year | 41,592.6 [23,035.0, 77,810.8] |
| Follow up after discharge | |
| Follow up in the same hospital | 3,048 (50.4) |
| Transfer to other long-term facility care center | 230 (3.8) |
| Discharge to home, and outpatient clinic follow up | 2,766 (45.8) |
| Main diagnosis at ECMO treatment | |
| Cardiac indication group | 3,566 (59.0) |
| Respiratory indication group | 658 (10.9) |
| Other | 1,820 (30.1) |
ECMO, extracorporeal membrane oxygenation; IQR, interquartile range; NHIS, National Health Insurance Service; USD, United States Dollar.