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Table 4: Cox proportional hazards model for the association of the plaque Hounsfield unit values with the occurrence of the MACE composite outcome and the individual MACE components (n = 194)^{^a}
MACE (–) MACE (+) HR (95% CI) P Value
MACE^{^b} (n = 38) 39.2 (SD, 15.2) 27.6 (SD, 12.7) 0.96 (0.95–0.98) <.001
Any stroke (n = 19) 37.9 (SD, 15.4) 27.8 (SD, 12.0) 0.97 (0.94–0.99) .01
 Ipsilateral stroke (n = 14) 37.6 (SD, 15.4) 27.4 (SD, 12.4) 0.96 (0.93–0.99) .02
ACS (n = 16) 37.8 (SD, 15.2) 26.6 (SD, 14.0) 0.96 (0.93–0.99) .01
Cardiovascular mortality (n = 12) 37.7 (SD, 15.4) 24.9 (SD, 8.8) 0.95 (0.92–0.99) .01
All-cause mortality (n = 32) 37.7 (SD, 15.6) 32.8 (SD, 13.9) 0.98 (0.96–1.01) .14
↵a Data are presented as mean (SD) and 95% CI of plaque Hounsfield values.
↵b Any stroke, ACS, or cardiovascular mortality.

	MACE (–)	MACE (+)	HR (95% CI)	P Value
MACE^{^b} (n = 38)	39.2 (SD, 15.2)	27.6 (SD, 12.7)	0.96 (0.95–0.98)	<.001
Any stroke (n = 19)	37.9 (SD, 15.4)	27.8 (SD, 12.0)	0.97 (0.94–0.99)	.01
Ipsilateral stroke (n = 14)	37.6 (SD, 15.4)	27.4 (SD, 12.4)	0.96 (0.93–0.99)	.02
ACS (n = 16)	37.8 (SD, 15.2)	26.6 (SD, 14.0)	0.96 (0.93–0.99)	.01
Cardiovascular mortality (n = 12)	37.7 (SD, 15.4)	24.9 (SD, 8.8)	0.95 (0.92–0.99)	.01
All-cause mortality (n = 32)	37.7 (SD, 15.6)	32.8 (SD, 13.9)	0.98 (0.96–1.01)	.14