Table 5. Impact of the Number of Abnormal ECG Categories on All-Cause and Cardiovascular Death in Women.

		All-Cause Death		Cardiovascular Death		Coronary Death		Stroke Death
		(1,796 events)		(623 events)		(120 events)		(266 events)
	N (%)	HR (95%CI)	P value	HR (96%CI)	P value	HR (97%CI)	P value	HR (98%CI)	P value
FRS Adjusted HRs
No abnormality	7,719 (80)	Reference		Reference		Reference		Reference
Single abnormality	1,654 (17)	1.63 (1.46, 1.81)	<0.001	1.72 (1.43, 2.05)	<0.001	1.80 (1.21, 2.70)	0.004	1.65 (1.25, 2.17)	<0.001
≥2 Abnormalities	273 (3)	3.03 (2.53, 3.62)	<0.001	4.83 (3.76, 6.22)	<0.001	5.15 (2.94, 9.02)	<0.001	4.78 (3.25, 7.06)	<0.001
NDRC Adjusted HRs
No abnormality	7,471 (80)	Reference		Reference		Reference		Reference
Single abnormality	1,612 (17)	1.31 (1.18, 1.46)	<0.001	1.33 (1.11, 1.60)	0.002	1.47 (0.98, 2.20)	0.06	1.23 (0.93, 1.63)	0.152
≥2 Abnormalities	265 (3)	1.37 (1.15, 1.66)	0.001	2.04 (1.58, 2.64)	<0.001	2.32 (1.31, 4.12)	0.004	2.01 (1.35, 2.98)	0.001

FRS: Framingham risk score was calculated using age, gender, body mass index, systolic blood pressure, diabetes mellitus, and current smoking. NDRC: Risk probability using the NIPPON DATA80 risk chart was calculated using age, gender, systolic blood pressure, total cholesterol level, diabetes mellitus, and current smoking. Gender was not accounted for in calculation of the FRS and the NDRC as only men were analyzed.