| | Unweighted Sample | Weighted Sample |
|---|
| All | No Depression | Depression | All | No Depression | Depression |
|---|
| ESI score** |
| 1 (Immediate) | 239 (0.8) | 210 (0.8) | 29 (0.8) | 1,496,327 (0.8) | 1,272,228 (0.7) | 224,099 (1.0) |
| 2 (Emergent) | 3615 (11.6) | 2966 (10.9) | 649 (16.9) | 23,433,327 (11.8) | 19,516,968 (11.2) | 3,916,359 (16.8) |
| 3 (Urgent) | 15,392 (49.5) | 13,428 (49.3) | 1964 (51.0) | 97,000,149 (49.0) | 85,337,086 (48.8) | 11,663,063 (50.1) |
| 4 (Semi-urgent) | 10,051 (32.3) | 9037 (33.2) | 1014 (26.3) | 65,085,335 (32.9) | 58,899,226 (33.7) | 6,186,109 (26.6) |
| 5 (Non-urgent) | 1784 (5.7) | 1589 (5.8) | 195 (5.1) | 11,046,598 (5.6) | 9,768,544 (5.6) | 1,278,054 (5.5) |
| Hospital Admission | 5852 (13.7) | 4764 (12.6) | 1088 (21.4) | 36,388,538 (13.1) | 29,653,166 (12.0) | 6,735,373 (21.1) |
| ICU* | 698 (1.6) | 587 (1.6) | 111 (2.2) | 4,647,353 (1.7) | 3,833,519 (1.6) | 813,835 (2.6) |
| Death in ED or hospital | 201 (0.5) | 187 (0.5) | 14 (0.3) | 1,342,510 (0.5) | 1,224,939 (0.5) | 117,571 (0.4) |
| Left before/after triage* | 1085 (2.5) | 978 (2.6) | 107 (2.1) | 6,792,175 (2.4) | 6,134,329 (2.5) | 657,846 (2.1) |
| Blood test performed* | 21,958 (51.3) | 18,860 (50.0) | 3098 (60.8) | 142,656,097 (51.2) | 123,598,652 (50.1) | 19,057,445 (59.8) |
| Any imaging performed | 21,950 (51.2) | 19,494 (51.7) | 2456 (48.2) | 144,824,612 (52.0) | 128,979,436 (52.3) | 15,845,177 (49.7) |
| X-ray in ED | 15,099 (35.3) | 13,363 (35.4) | 1736 (34.1) | 99,429,274 (35.7) | 88,271,718 (35.8) | 11,157,556 (35.0) |
| CT in ED | 8414 (19.6) | 7392 (19.6) | 1022 (20.1) | 54,986,804 (19.7) | 48,528,197 (19.7) | 6,458,608 (20.3) |
| Ultrasound in ED | 2218 (5.2) | 2012 (5.3) | 206 (4.0) | 14,936,538 (5.4) | 13,580,831 (5.5) | 1,355,707 (4.3) |
| MRI in ED* | 446 (1.0) | 402 (1.1) | 44 (0.9) | 2,831,626 (1.0) | 2,594,364 (1.1) | 237,262 (0.7) |
| Other Imaging in ED | 604 (1.4) | 539 (1.4) | 65 (1.3) | 4,297,097 (1.5) | 3,896,319 (1.6) | 400,778 (1.3) |
| Procedure | 21,021 (49.1) | 18,626 (49.4) | 2395 (47.0) | 133,801,012 (48.0) | 119,211,149 (48.3) | 14,589,863 (45.8) |
| Waiting time (min, means [95% CI]) | 41.1 (40.3–41.8) | 41.0 (40.2–41.8) | 41.7 (39.3–44.1) | 39.9 (39.2–40.6) | 39.8 (39.0–40.5) | 41.0 (38.9–43.2) |
| Visit length** (min, means [95% CI]) | 245.6 (241.6–249.6) | 237.5 (233.4–241.6) | 309.1 (293.5–324.6) | 230.2 (226.7–233.8) | 224.8 (221.2–228.5) | 275.2 (262.4–288.0) |
- Note: “Waiting time” is time from arrival to seeing the physician; “length of visit” is time from arrival to discharge. *p < 0.05; **p < 0.01
