Table 1

Characteristics of patients by PCI/non-PCI hospital in MAMIR Study

PCI centreNon-PCI centreTotalχ2, p-value
Age (years)
 35–59n483655480.03, 0.872
%48.549.248.6
 60–75n51367580
%51.554.551.4
Sex
 Femalen224322560.20, 0.651
%22.524.222.7
 Malen772100872
%77.581.377.3
STEMI
 Non2677834556.43, <0.001*
%26.859.130.6
 Yesn72354777
%72.640.968.9
 Missingn606
%0.600.53
Transported directly†
 Non3126637818.24, <0.001
%31.35033.5
 Yesn68466750
%68.75066.5
Transported by EMS
 Non3016937025.71, <0.001
%30.252.332.8
 Yesn69563758
%69.847.767.2
Pre-hospital delay‡
 <12 hoursn5905264268.51, <0.001
%59.239.456.9
 12–48 hoursn17525200
%17.618.917.7
 >48 hoursn7941120
%7.931.110.6
 Missingn15214166
%15.310.614.7
Totaln9961321128
%88.311.7100
  • *Fisher’s exact test

  • †Directly to hospital of definitive treatment (where patient in analysis sample was both finally treated for suspected AMI and recruited to study).

  • ‡Delay from symptom onset to admission to hospital of definitive treatment.

  • AMI, acute myocardial infarction; EMS, emergency medical service; MAMIR, Management of Acute Myocardial Infarction in Russia; PCI, percutaneous coronary intervention; STEMI, ST-elevation myocardial infarction.