Table 1

Demographic characteristics, CT utilisation, triage category, cost, LOS and disposition of emergency department visits during 2009–2013

2009–2013
(n=269 239)
2009
(n=51 381)
2010
(n=53 908)
2011
(n=54 832)
2012
(n=55 670)
2013
(n=53 448)
p Value
n (%)n (%)n (%)n (%)n (%)n (%)
CT utilisation<0.001*
 No230 630 (85.7)45 670 (88.9)46 817 (86.9)46 928 (85.6)47 234 (84.9)43 981 (82.3)
 Yes38 609 (14.3)5711 (11.1)7091 (13.2)7904 (14.4)8436 (15.2)9467 (17.7)
Gender<0.001*
 Male148 613 (55.2)28 898 (56.2)30 133 (55.9)30 431 (55.5)30 211 (54.3)28 940 (54.2)
 Female120 626 (44.8)22 483 (43.8)23 775 (44.1)24 401 (44.5)25 459 (45.7)24 508 (45.9)
Age (years)<0.001*
 ≥18 to <4078 967 (29.3)14 795 (28.8)15 636 (29.0)16 399 (29.9)16 599 (29.8)15 538 (29.1)
 ≥40 to <6593 316 (34.7)17 401 (33.9)18 410 (34.2)18 978 (34.6)19 514 (35.1)19 013 (35.6)
 ≥6596 956 (36.0)19 185 (37.3)19 862 (36.8)19 455 (35.5)19 557 (35.1)18 897 (35.4)
Triage category<0.001*
 High248 413 (92.3)51 224 (99.7)51 984 (96.4)49 380 (90.1)51 035 (91.7)44 790 (83.8)
 Low20 826 (7.7)157 (0.3)1924 (3.6)5452 (9.9)4635 (8.3)8658 (16.2)
Disposition<0.001*
 Admitted68 216 (25.3)13 158 (25.6)14 318 (26.6)13 755 (25.1)13 908 (25.0)13 077 (24.5)
 Discharged187 632 (69.7)36 332 (70.7)37 284 (69.2)38 038 (69.4)38 908 (69.9)37 070 (69.4)
 Transferred690 (0.3)140 (0.3)112 (0.2)112 (0.2)125 (0.2)201 (0.4)
 DAMA11 350 (4.2)1532 (3.0)1905 (3.5)2620 (4.8)2470 (4.4)2823 (5.3)
 Expired1351 (0.5)219 (0.4)289 (0.5)307 (0.6)259 (0.5)277 (0.5)
LOS<0.001*
 Short198 372 (73.7)39 689 (77.2)39 886 (74.0)39 678 (72.4)40 842 (73.4)38 277 (71.6)
 Long70 867 (26.3)11 692 (22.8)14 022 (26.0)15 154 (27.6)14 828 (26.6)15 171 (28.4)
Cost<0.001*
 Low142 110 (52.8)28 823 (56.1)29 115 (54.0)27 556 (50.3)27 110 (48.7)29 506 (55.2)
 High127 129 (47.2)22 558 (43.9)24 793 (46.0)27 276 (49.7)28 560 (51.3)23 942 (44.8)
  • χ2 test. *p<0.001.

  • DAMA, discharged against medical advice; LOS, length of stay.