Table 3

ECG pattern on admission to hospital

Q wave AMI (n=306) p Value Non-Q wave AMI (n=524)4-150 p Value Myocardial ischaemia (n=1267)4-151
Normal ECG4.9< 0.000112.8< 0.000137.8
Pathological ECG but no acute ischaemia5.9< 0.000135.3< 0.000844.0
Acute myocardial ischaemia89.2< 0.000152.1< 0.000118.3
 ST elevation73.2< 0.000125.2< 0.00011.4
 ST depression32.00.00123.8< 0.00018.8
 T wave inversion19.014.70.0029.5
 Q wave36.0< 0.00016.1< 0.00010.4

  • ↵4-150 Information missing in three patients.

  • ↵4-151 Information missing in seven patients.