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

The Egyptian Heart Journal

Table 3 Estimated cumulative incidences (percentages) and absolute numbers of deaths and first MI for participants followed for 25 years by category (95% confidence intervals in brackets)

ECG category	Death (n = 157) Cumulative percentage	Infarction (n = 100) Cumulative percentage	Deaths Number of cases	First MI Number of cases
0 (n = 790)	13.9 (11.5; 16.3)	8.35 (6.42; 10.3)	110	66
1 (n = 79)	20.8 (11.5; 30.0)	22.4 (13.8; 31.9)	16	17
9 (n = 108)	27.6 (18.5; 36.6)	12.6 (5.83; 19.4)	27	12
Total	15.6 (13.3; 17.57)	10.2 (8.3; 12.1)	153^a	95^b

ECG category 0, ECG performed in 1993 and 1998, no ECGA; ECG category 1, ECG performed in 1993 and/or 1998 with one or more abnormalities; and ECG category 9, ECG performed in 1993 or 1998 without abnormality
^a4 deaths among the 23 non-informatives
^b5 MIs among the 23 non-informatives