Table 3.

Relationship between variables and adverse events.

Model	Included variables	HR (95% CI)	χ2	p
Model A	Age	1.06 (1.02–1.10)	8.01	0.005
	Gender	1.08 (0.52–2.24)	0.05	0.83
Model B	Age	1.04 (0.99–1.08)	3.54	0.11
	Gender	0.72 (0.35–1.52)	0.73	0.39
	CACS	1.43 (1.20–1.69)	16.64	<0.001
Model C	Age	1.03 (0.98–1.07)	1.30	0.25
	Gender	0.60 (0.28–1.27)	1.80	0.18
	CACS	1.24 (1.03–1.50)	5.14	0.02
	Maximal stenosis grade	1.80 (1.18–2.75)	7.49	0.006
Model D	Age	1.02 (0.97–1.07)	0.58	0.45
	Gender	0.58 (0.27–1.24)	1.96	0.16
	CACS	1.24 (1.04–1.48)	5.59	0.02
	# Obstructive vessels	1.85 (1.29–2.65)	11.24	<0.001
Model E	Age	1.02 (0.97–1.07)	0.61	0.43
	Gender	0.53 (0.24–1.17)	2.50	0.11
	CACS	1.22 (1.01–1.47)	4.41	0.04
	Segment stenosis score	1.11 (1.05–1.18)	11.43	<0.001

DF = 1 for all χ² comparisons. Age is in years. Maximal stenosis is graded as absent, mild (1–49%), moderate (50–69%), and severe (≥70%) luminal stenosis. The number of obstructive vessels represents the number of arteries with stenosis ≥50%. CACS = coronary artery calcium score, CI = confidence interval, HR = hazards ratio, SSS = segment stenosis score.