Table 1

Characteristics of myocardial infarction patients by admission glycaemia levels in the REGICOR study (Gerona, Spain, 1993–96)

Glycaemia ≤6.67 mmol/l on admissionGlycaemia >6.67 mmol/l on admissionp ValueFour day mean glycaemia ≤6.67 mmol/lFour day mean glycaemia >6.67 mmol/lp ValueWithout previous diagnosis of diabetesPrevious diagnosis of diabetesp Value
n, Number of patients; NS, non-statistically significant; APE, acute pulmonary oedema. *Mean (SD). †κ=0.24. ‡Occurrence of ventricular fibrillation or sustained ventricular tachycardia requiring immediate medical intervention during the acute phase of myocardial infarction within 72 hours of myocardial infarction onset.
Number of patients205457242362445195
Age*57.7 (11.4)62.7 (9.4)<0.00158.8 (11.5)62.7 (9.3)<0.00164.3 (8.4)60.1 (10.7)<0.001
Women (%)9.322.8<0.00112.423.5<0.00113.031.8<0.001
Hypertension43.747.4NS43.446.6NS42.453.90.007
Smoking52.241.90.01351.340.70.01130.751.4<0.0001
Diabetes8.240.3<0.001†8.545.1<0.001
History of angina54.447.70.11150.847.1NS47.156.70.025
History of heart failure6.912.30.0357.912.80.0618.616.50.003
Previous myocardial infarction1.92.9NS1.73.6NS1.53.1NS
Arrhythmias‡15.125.10.00517.624.40.04921.224.5NS
Anterior myocardial infarction32.835.0NS30.835.4NS34.733.9NS
Non-Q wave myocardial infarction18.718.1NS18.817.8NS17.421.1NS
Angina post myocardial infarction25.925.0NS22.228.10.12324.427.9NS
28 day re-infarction2.72.7NS2.82.5NS1.55.60.006
28 day APE or cardiogenic shock4.918.4<0.0014.620.2<0.0018.825.1<0.001
28 day mortality1.510.3<0.0011.79.1<0.0015.412.30.002
Thrombolysis34.038.3NS40.437.0NS41.627.3<0.001
Antiplatelet drugs98.096.5NS98.897.00.15497.596.4NS
28 day coronary angiograms19.517.4NS17.518.3NS17.020.8NS