Skip to main content

Table 9 Number of ECG deviations in 1998 follow-up

From: Prospective associations between ECG abnormalities and death or myocardial infarction in a cohort of 980 employed, middle-aged Swedish men

Minnesota Code Explanation Investigated persons Observed findings Findings with death Findings with infarct p value death p value infarct
Q and QS patterns
 1:1 Q and QS pattern 944 15 2 (13) 3 (20)   
 1:2 Q, QS, and QSR pattern 942 16 1 (6) 3 (19)   
STJ and segment depression
 4:1 or 4:2 STJ depression 926 18 4 (22) 4 (22) 0.054 0.041
T wave items T wave negative or biphasic       
 5:1 or 5:2   924 19 4 (21) 5 (26) 0.072 0.006
AV conduction defect
 6:1 Complete AV block 945 0     
 6:4:1 Wolf-Parkinson-White pattern 945 0     
 6:8 Artificial pacemaker 945 0     
Ventricular conduction defect
 7:1:1 Complete left bundle branch block 945 1 0 0   
 7:2:1 Complete right bundle branch block 945 9 1 (11) 2 (22)   
 7:3 Incomplete RBB 945 26 3 (12) 5 (19)   
 7:4 Intraventricular block 944 4 0 0   
 7:6 Incomplete LBB 919 5 1 (20) 1 (20)   
  1. The p values refer to death and infarct risk comparisons between persons with and without ECG abnormalities. Only p values smaller than 0.100 are shown. Note that the p values themselves are due to variation. Even one single finding more or less might change the p value substantially. Percentages in brackets