Abstract 16 Table 1 Baseline and procedural characteristics according to time of year
| May-October n=1764 | November-April n=1939 | P | |
|---|---|---|---|
| Age in years; median (IQR) | 62 (20) | 63 (19) | 0.13 |
| Male n (%) | 883 (50.1) | 885 (45.6) | < 0.01 |
| Out-of-hours n (%) | 1018 (57.7) | 1139 (58.7) | 0.53 |
| Call-to-balloon in minutes; median (IQR) | 127 (59) | 131 (63) | < 0.01 |
| Door-to-balloon in minutes; median (IQR) | 49 (31) | 51 (30) | 0.04 |
| Length of stay in days; median (IQR) | 3 (1) | 3 (1) | 0.12 |
| Anterior MI* n (%) | 748 (42.4) | 787 (40.6) | 0.27 |
| Cardiac arrest n (%) | 168 (9.5) | 186 (9.6) | 0.96 |
| Cardiogenic shock n (%) | 71 (4.0) | 99 (5.1) | 0.14 |
| Multivessel PCI n (%) | 157 (8.9) | 167 (8.6) | 0.77 |
Categorical variables are expressed in number (%), and continuous variables are expressed in median (IQR). *MI: Myocardial Infarction; PCI: Percutaneous coronary intervention.