Table 1 Characteristics of ACS patients (N = 3588)
Characteristics | Patients living in areas with high ambulance density (N = 1758) | Patients living in areas with low ambulance density (N = 1830) | Total (N = 3588) | P-value |
|---|---|---|---|---|
Age, mean (SD) | 58.43(13.81) | 56.85(13.82) | – | < 0.001 |
Gender, n (%) | Â | Â | Â | 0.005 |
 Male | 1397(79.47) | 1521(83.11) | 2918(81.33) |  |
 Female | 361(20.53) | 309(16.89) | 670(18.67) |  |
Death cases, n (%) | 132(7.51) | 194(10.60) | 326(9.09) | 0.001 |
Type of disease, n (%) |  |  |  | < 0.001 |
 STEMI | 1064(60.52) | 1248(68.20) | 2312(64.44) |  |
 NSTEMI | 488(27.76) | 384(20.98) | 872(4.30) |  |
 UA | 206(11.72) | 198(10.82) | 404(11.26) |  |
Emergency risk level, n (%) |  |  |  | < 0.001 |
 Low | 1177(66.95) | 1540(84.15) | 2717(75.72) |  |
 Medium | 326(18.54) | 169(9.23) | 495(13.80) |  |
 High | 255(14.51) | 121(6.61) | 376(10.48) |  |
Heart rate, n (%) | Â | Â | Â | 0.237 |
 Normal | 1324(75.31) | 1409(76.99) | 2733(76.17) |  |
 Arrhythmia | 434(24.69) | 421(23.01) | 855(23.83) |  |
Hypertension, n (%) |  |  |  | < 0.001 |
 Yes | 892(50.74) | 813(44.43) | 1705(47.52) |  |
 No | 866(49.26) | 1017(55.57) | 1883(52.48) |  |
Killip grade, n (%) |  |  |  | < 0.001 |
 0 | 1412(80.32) | 1399(76.45) | 2811(78.34) |  |
 1 | 106(6.03) | 102(5.57) | 208(5.80) |  |
 2 | 36(2.05) | 27(1.48) | 63(1.76) |  |
 3 | 46(2.62) | 94(5.14) | 140(3.90) |  |
 4 | 158(8.99) | 208(11.37) | 366(10.20) |  |