Table 4

Treatment Times

2004
(n = 109)
2005
(n = 136)
2006
(n = 144)
2007
(n = 118)
2008
(n = 180)
p Value
Onset of chest pain to arrival at referring hospital75 [45, 126]93 [60, 165]84 [50, 150]90 [50, 139]96 [56, 192]0.14
Arrival at referring hospital to arrival at PCI hospital92 [75, 125]81 [64, 107]75 [59, 94]67 [54, 91]67 [49, 85]<0.001
 Arrival at referring hospital to ECG time6.5 [3, 15]7 [3, 13]6 [1, 12]4 [0, 11]3 [0, 9]0.012
 ECG to helicopter dispatch time20.5 [12.5, 42]18 [11, 31]16 [10, 24]12 [6, 19]12 [6, 18]<0.001
 Helicopter dispatch to arrival at PCI hospital53 [44, 68]49 [38, 63]49 [38, 61]47 [38, 61]47 [35, 62]0.003
Arrival at PCI hospital to balloon inflation82 [60, 108]32 [25, 44]27 [21, 36]25 [20, 31]22 [15, 28]<0.001
 Arrival at PCI hospital to catheterization laboratory46 [30, 62]11 [6, 23]7 [5, 12]6 [4, 9]4 [3, 8]<0.001
 Arrival at catheterization laboratory to balloon inflation36 [26, 47]20 [13, 27]17.5 [13, 23.5]19 [14, 23.517 [12, 21]<0.001
Door-to-balloon time (arrival at referring hospital to balloon inflation)189 [146, 219]113 [94, 147]104.5 [86, 124.5]95 [79, 125]88 [71.5, 110]<0.001
Door-to-balloon time <90 min, %1%19%28%43%53%<0.001
Door-to-balloon time <120 min, %12%57%70%74%83%<0.001

Values are presented as medians [Q1, Q3] in minutes.

Abbreviations as in Table 1.

  • Jonckheere-Terpstra trend test.

  • Wire-crossing times used for 2004 to 2006.

  • Cochran-Armitage trend test.