Table 4.

Hazard Ratios and 95% Confidence Intervals for Incident, Clinical Abdominal Aortic Aneurysm According to Number of Metabolic Syndrome Components in Participants with or without Diabetes Mellitus, ARIC, 1987–2011 (n=13,763).

	Number of metabolic syndrome components other than abnormal glucose metabolism
	0–1	2	3	4
Without diabetes mellitus
Participants, n	6.928	3,285	1,633	530
Person-years	143,625	65,690	31,778	10,051
Cases, n	225	125	95	40
Model 1	1	1.16 (0.93–1.44)	1.61 (1.27–2.05)	1.99 (1.42–2.79)
Model 2	1	1.10 (0.89–1.37)	1.47 (1.16–1.87)	1.89 (1.35–2.65)
With diabetes mellitus
Participants, n	293	455	411	228
Person-years	5,487	8,120	6,697	3,606
Cases, n	4	6	16	7
Model 1	0.38 (0.14–1.02)	0.46 (0.20–1.03)	1.33 (0.80–2.21)	1.09 (0.51–2.31)
Model 2	0.34 (0.13–0.92)	0.51 (0.23–1.15)	1.21 (0.73–2.01)	1.20 (0.56–2.55)

Model 1: Adjusted for age, sex, and race/ARIC field center.

Model 2: Adjusted for Model 1 + height, smoking status, pack-years of smoking, LDL cholesterol and peripheral artery disease.