Table 1.

Demographics of the Study Population

	(+) CV Death	(−) CV Death	P Value
Subjects	1878 (6.0%)	29196 (94%)
Age (years)	66.5 ± 11.8	54.0 ± 14.0	<0.0001
Body mass index (kg/m2)	26.8 ± 5.2	27.3 ± 5.4	0.0001
Inpatient	772	7788	<0.0001
Heart rate (bpm)	76.8 ± 16.6	73.5 ± 15.8	<0.0001
QRS duration (ms)	92.5 ± 10.6	91.4 ± 9.5	<0.0001
Minor T (MC 5−3, 5−4)	687 (36.6%)	4232 (14.5%)	<0.0001
Major T (MC 5−1, 5−2)	300 (16%)	1266 (4.3%)	<0.0001
Minor ST (MC 4−3)	1368 (72.8%)	17683 (60.6%)	<0.0001
Major ST (MC 4−1, 4−2)	447 (23.8%)	3292 (11.3%)	<0.0001
QT interval (ms)	386.1 ± 41.2	383.8 ± 38.7	0.01

CV = cardiovascular; MC = Minnesota code.