Table 1 Baseline clinical and demographic characteristics stratified by the total ischemic time
From: Time to think beyond door to balloon time: significance of total ischemic time in STEMI
Characteristics | Total | Total ischemic time (min) | p value | ||
|---|---|---|---|---|---|
Up to 120 | 121 to 240 | More than 240 | |||
Total | 5730 | 418 (7.3%) | 2199 (38.4%) | 3113 (54.3%) | – |
Age (years) | |||||
Median [IQR] | 55 [61–48] | 52.5 [60–45] | 55 [60–47] | 55 [62–48] | < 0.001* |
Up to 40 years | 608 (10.6%) | 53 (12.7%) | 234 (10.6%) | 321 (10.3%) | 0.025* |
41 to 50 years | 1675 (29.2%) | 139 (33.3%) | 657 (29.9%) | 879 (28.2%) | |
51 to 60 years | 2004 (35%) | 147 (35.2%) | 767 (34.9%) | 1090 (35%) | |
> 60 years | 1443 (25.2%) | 79 (18.9%) | 541 (24.6%) | 823 (26.4%) | |
Gender | |||||
Male | 4637 (80.9%) | 369 (88.3%) | 1832 (83.3%) | 2436 (78.3%) | < 0.001* |
Female | 1093 (19.1%) | 49 (11.7%) | 367 (16.7%) | 677 (21.7%) | |
Medical history | |||||
Diabetes | 1712 (29.9%) | 123 (29.4%) | 616 (28%) | 973 (31.3%) | 0.039* |
Hypertension | 2978 (52%) | 195 (46.7%) | 1123 (51.1%) | 1660 (53.3%) | 0.021* |
Smoke | 1636 (28.6%) | 122 (29.2%) | 647 (29.4%) | 867 (27.9%) | 0.438 |
Family history | 263 (4.6%) | 20 (4.8%) | 89 (4%) | 154 (4.9%) | 0.298 |
KILLIP class | |||||
I | 5070 (88.5%) | 376 (90%) | 1977 (89.9%) | 2717 (87.3%) | 0.009* |
II | 287 (5%) | 16 (3.8%) | 111 (5%) | 160 (5.1%) | |
III | 159 (2.8%) | 9 (2.2%) | 43 (2%) | 107 (3.4%) | |
IV | 214 (3.7%) | 17 (4.1%) | 68 (3.1%) | 129 (4.1%) | |
Symptom onset to hospital arrival time (min) | |||||
Median [IQR] | 180 [300–120] | 60 [60–30] | 120 [160–120] | 283 [385–240] | < 0.001* |
Door to balloon time (min) | |||||
Median [IQR] | 60 [75–45] | 45 [55–37] | 55 [71–45] | 65 [75–49] | < 0.001* |
Total ischemic time (min) | |||||
Median [IQR] | 255 [355–180] | 101 [110–85] | 185 [213–165] | 341 [446–285] | < 0.001* |