Table 1.
Clinicopathological characteristics
| Variable | Mean (SD) or N (%) |
|---|---|
| Age, year | 62.9 (17.4) |
| Sex, male | 2657 (59.7) |
| Treatment result | |
| Discharge, and follow-up in same hospital | 1691 (38.0) |
| Transfer to other long-term facility center | 366 (8.2) |
| Discharge, and outpatient clinic follow-up | 2395 (53.8) |
| Admitting department | |
| IM | 3602 (80.9) |
| Non-IM | 850 (19.1) |
| Length of hospitalization, day | 18.6 (15.3) |
| Total cost for hospitalization, USD | 9714.1 (12,266.7) |
| Insurance coverage for hospitalization, USD | 8161.4 (10,585.2) |
| Hospital admission | |
| Transfer from another hospital | 264 (5.9) |
| Admission through Emergency Room | 2714 (61.0) |
| Admission through outpatient clinic | 1474 (33.1) |
| Annual case volume of ARDS admission | |
| Q1 ≤ 4 | 1070 (24.0) |
| Q2: 5–14 | 907 (20.4) |
| Q3: 15–28 | 1289 (29.0) |
| Q4 ≥ 28 | 1186 (26.6) |
| Main diagnosis of ARDS | 2246 (50.4) |
| Sepsis-associated ARDS | 526 (11.8) |
| Diagnosis of shock during hospitalization | 236 (5.3) |
| CCI at hospital admission for ARDS | 3.3 (2.5) |
| 0–1 | 1180 (26.5) |
| 2–3 | 1536 (34.5) |
| 4–5 | 943 (21.2) |
| ≥ 6 | 793 (17.8) |
| ECMO support | 215 (4.8) |
| NMB use | 1520 (34.1) |
| CRRT use | 184 (4.1) |
| Duration of mechanical ventilator use, day | 5.3 (8.1) |
| Experience of CPR during hospitalization | 116 (2.6) |
| Year of admission for ARDS | |
| 2010 | 602 (13.5) |
| 2011 | 470 (10.6) |
| 2012 | 430 (9.7) |
| 2013 | 361 (8.1) |
| 2014 | 465 (10.4) |
| 2015 | 443 (10.0) |
| 2016 | 613 (13.8) |
| 2017 | 523 (11.7) |
| 2018 | 545 (12.2) |
SD, standard deviation; IM, internal medicine; ARDS, acute respiratory distress syndrome; CCI, Charlson comorbidity index; ECMO, extracorporeal membrane oxygenation; NMB, neuromuscular blockade; CPR, cardiopulmonary resuscitation