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Table 1 Demographic and ED presentation characteristics for all EDs and by ED category

From: Temporal trends in emergency department volumes and crowding metrics in a western Canadian province: a population-based, administrative data study

CharacteristicAll EDs (n = 3,925,457)Regional EDs (n = 1,142,807)Urban EDs (n = 1,746,324)Academic/ Teaching EDs (n = 1,036,326)
Sex, n (%)
 Female2,020,113 (51.5)567,661 (49.7)937,529 (53.7)514,923 (49.7)
 Male1,905,329 (48.5)575,141 (50.3)808,788 (46.3)521,400 (50.3)
Age (years)
 mean (SD)46.0 (19.9)43.2 (18.9)46.7 (20.0)47.9 (20.4)
 median [IQR]43.0 [29, 60]40.0 [27, 55]44.0 [30, 61]46.0 [30, 63]
 Missing8202755
Zone of residence, n (%)
 Z5 North486,626 (12.4)426,998 (37.4)22,928 (1.3)36,700 (3.5)
 Z4 Edmonton1,466,128 (37.3)25,830 (2.3)864,932 (49.5)575,366 (55.5)
 Z3 Central272,482 (6.9)232,799 (20.4)15,284 (0.9)24,399 (2.4)
 Z2 Calgary1,176,632 (30.0)19,671 (1.7)797,869 (45.7)359,092 (34.7)
 Z1 South363,901 (9.3)353,557 (30.9)4780 (0.3)5564 (0.5)
 Missing159,688 (4.1)83,952 (7.3)40,531 (2.3)35,205 (3.4)
Fiscal year, n (%)
 2010/2011686,976 (17.5)212,693 (18.6)290,250 (16.6)184,033 (17.8)
 2011/2012741,312 (18.9)225,100 (19.7)313,346 (17.9)202,866 (19.6)
 2012/2013796,151 (20.3)236,166 (20.7)343,978 (19.7)216,007 (20.8)
 2013/2014838,295 (21.4)236,380 (20.7)383,032 (21.9)218,883 (21.1)
 2014/2015862,723 (22.0)232,468 (20.3)415,718 (23.8)214,537 (20.7)
Month of year, n (%)
 January331,948 (8.5)95,920 (8.4)148,639 (8.5)87,389 (8.4)
 February305,191 (7.8)88,778 (7.8)136,347 (7.8)80,066 (7.7)
 March335,723 (8.6)95,972 (8.4)150,839 (8.6)88,912 (8.6)
 April312,766 (8.0)92,314 (8.1)136,495 (7.8)83,957 (8.1)
 May332,455 (8.5)97,189 (8.5)146,458 (8.4)88,808 (8.6)
 June326,939 (8.3)94,589 (8.3)146,142 (8.4)86,208 (8.3)
 July343,412 (8.7)99,972 (8.7)153,370 (8.8)90,070 (8.7)
 August343,602 (8.8)100,098 (8.8)153,148 (8.8)90,356 (8.7)
 September327,555 (8.3)95,996 (8.4)145,650 (8.3)85,909 (8.3)
 October329,296 (8.4)96,936 (8.5)146,008 (8.4)86,352 (8.3)
 November308,984 (7.9)89,948 (7.9)137,093 (7.9)81,943 (7.9)
 December327,586 (8.3)95,095 (8.3)146,135 (8.4)86,356 (8.3)
Day of week, n (%)
 Weekday (Mon-Fri)2,803,405 (71.4)805,493 (70.5)1,254,413 (71.8)743,499 (71.7)
 Weekend (Sat, Sun)1,122,052 (28.6)337,314 (29.5)491,911 (28.2)292,827 (28.3)
Time of day, n (%)
 Daytime (08:01–16:00)1,807,622 (46.0)538,397 (47.1)798,406 (45.7)470,819 (45.4)
 Evening (16:01–24:00)1,461,638 (37.2)421,100 (36.8)657,150 (37.6)383,388 (37.0)
 Night (00:01–08:00)656,197 (16.7)183,310 (16.0)290,768 (16.7)182,119 (17.6)
Triage level, n (%)
 1 Resuscitation29,242 (0.7)3286 (0.3)8974 (0.5)16,982 (1.6)
 2 Emergency724,574 (18.5)89,994 (7.9)367,420 (21.0)267,160 (25.8)
 3 Urgent1,786,753 (45.5)439,474 (38.5)849,733 (48.7)497,546 (48.0)
 4 Semi-urgent1,133,670 (28.9)513,555 (44.9)415,238 (23.8)204,877 (19.8)
 5 Non-urgent243,252 (6.2)89,110 (7.8)104,697 (6.0)49,445 (4.8)
 Missing7966 (0.2)7388 (0.6)262 (0.0)316 (0.0)
Disposition, n (%)
 Discharged3,076,395 (78.4)954,016 (83.5)1,405,635 (80.5)716,744 (69.2)
 Admitted580,325 (14.8)120,827 (10.6)220,852 (12.6)238,646 (23.0)
 Transferred60,055 (1.5)9573 (0.8)36,490 (2.1)13,992 (1.4)
 LWBS162,056 (4.1)47,486 (4.2)65,062 (3.7)49,508 (4.8)
 LAMA41,884 (1.1)10,047 (0.9)16,564 (0.9)15,273 (1.5)
 Death4742 (0.1)858 (0.1)1721 (0.1)2163 (0.2)
  1. IQR 25th percentile, 75th percentile, n count, SD Standard deviation