Table 1. Patient Demographics.
| Variables | Overall (n=704281) | 2019 (n=437762) | 2020 (n=266519) | p value | |
|---|---|---|---|---|---|
| Age | <0.001 | ||||
| <15 year | 239943 (34.1) | 182930 (41.8) | 57013 (21.4) | ||
| 15–65 year | 328106 (46.6) | 183054 (41.8) | 145052 (54.4) | ||
| >65 year | 136231 (19.3) | 71777 (16.4) | 64454 (24.2) | ||
| Not recorded | 0 | ||||
| Sex | <0.001 | ||||
| Male | 365493 (51.9) | 225765 (51.6) | 139728 (52.4) | ||
| Female | 338788 (48.1) | 211997 (48.4) | 126791 (47.6) | ||
| Not recorded | 1 | ||||
| Insurance status | <0.001 | ||||
| National health insurance | 652870 (92.9) | 409753 (93.7) | 243117 (91.7) | ||
| Medical care type I | 27650 (3.9) | 14872 (3.4) | 12778 (4.8) | ||
| Medical care type II | 6017 (0.9) | 3717 (0.8) | 2300 (0.9) | ||
| No insurance | 6647 (0.9) | 3975 (0.9) | 2672 (1.0) | ||
| Others | 9358 (1.3) | 5203 (1.2) | 4155 (1.6) | ||
| Not recorded | 1739 | ||||
| Reason for visit | <0.001 | ||||
| Medical problem | 666022 (94.7) | 418337 (95.8) | 247685 (93.0) | ||
| External factor | 37248 (5.3) | 18565 (4.2) | 18683 (7.0) | ||
| Not recorded | 1011 | ||||
| Visiting route | <0.001 | ||||
| EMS | 91394 (13.0) | 46701 (10.7) | 44693 (16.8) | ||
| Direct visit | 518630 (73.6) | 336683 (76.9) | 181947 (68.3) | ||
| Transferred | 81924 (11.6) | 48293 (11.0) | 33631 (12.6) | ||
| Others | 12333 (1.8) | 6085 (1.4) | 6248 (2.3) | ||
| Not recorded | 0 | ||||
| KTAS | <0.001 | ||||
| Level 1 | 4831 (0.7) | 2537 (0.6) | 2294 (0.9) | ||
| Level 2 | 32118 (4.6) | 18957 (4.4) | 13161 (5.0) | ||
| Level 3 | 311684 (45.0) | 192394 (44.7) | 119290 (45.5) | ||
| Level 4 | 320897 (46.3) | 203878 (47.4) | 117019 (44.7) | ||
| Level 5 | 22982 (3.3) | 12712 (3.0) | 10270 (3.9) | ||
| Not recorded | 11769 | ||||
| ED region | <0.001 | ||||
| Daegu/Gyeongbuk | 60770 (8.6) | 38466 (8.8) | 22304 (8.4) | ||
| Others | 643511 (91.4) | 399296 (91.2) | 244215 (91.6) | ||
| Not recorded | 0 | ||||
| ED level | <0.001 | ||||
| Level 1 | 200540 (28.5) | 121204 (27.7) | 79336 (29.8) | ||
| Level 2 | 397287 (56.4) | 247546 (56.5) | 149741 (56.2) | ||
| Level 3 | 106454 (15.1) | 69012 (15.8) | 37442 (14.0) | ||
| Not recorded | 0 | ||||
| Disposition | <0.001 | ||||
| Discharge | 493879 (70.5) | 319344 (73.0) | 174535 (66.3) | ||
| Transfer | 13145 (1.9) | 7449 (1.7) | 5696 (2.2) | ||
| Admission | 192513 (27.5) | 110113 (25.2) | 82400 (31.3) | ||
| Death | 937 (0.1) | 397 (0.1) | 540 (0.2) | ||
| Not recorded | 3807 | ||||
| Admission unit | <0.001 | ||||
| General ward | 150015 (82.8) | 90597 (87.6) | 59418 (76.5) | ||
| Intensive care unit | 18139 (10.0) | 9937 (9.6) | 8202 (10.6) | ||
| General isolation ward | 10024 (5.5) | 2405 (2.3) | 7619 (9.8) | ||
| Intensive care isolation unit | 2555 (1.4) | 364 (0.4) | 2191 (2.8) | ||
| Others | 347 (0.2) | 128 (0.1) | 219 (0.3) | ||
| Not recorded | 523201 | ||||
| ED LOS (minutes), median (interquartile) | 136.0 [72.0, 247.0] | 131.0 [74.0,227.0] | 147.0 [68.0,286.0] | <0.001 | |
| Symptom duration (hours), median (interquartile) | 14.3 [4.0,4 3.0] | 14.9 [4.2,43.5] | 13.4 [3.6,42.0] | <0.001 | |
EMS, emergency medical service; KTAS, Korean triage and acuity scale; ED, emergency department; LOS, length of stay.
Data are presented as n (%).