Table 3.

Percentage Change in Carotid IMT Measures Per 20% Greater VAT by Time Segments

Carotid-IMT Measure	Model a	Estimate (95% CI)			P-Value for Pairwise Difference
		Segment 1	Segment 2	Segment 3	Segment 1 vs. 2	Segment 1 vs. 3	Segment 2 vs. 3
Average Carotid Artery IMT	1	0.59 (−0.04 to 1.23)	0.88 (0.20 to 1.56)	0.94 (0.39 to 1.49)	0.49	0.40	0.88
	2	0.52 (−0.07 to 1.12)	0.86 (0.21 to 1.51)	0.72 (0.19 to 1.26)	0.39	0.60	0.72
	3	0.08 (−0.62 to 0.79)	0.41 (−0.37 to 1.19)	0.25 (−0.43 to 0.95)	0.44	0.68	0.70
Common Carotid Artery IMT	1	0.98 (0.32 to 1.64)	0.79 (0.08 to 1.51)	0.79 (0.24 to 1.35)	0.67	0.66	1.00
	2	0.85 (0.22 to 1.48)	0.69 (0.01 to 1.38)	0.54 (0.01 to 1.08)	0.71	0.44	0.70
	3	0.21 (−0.50 to 0.93)	0.16 (−0.64 to 0.96)	−0.19 (−0.87 to 0.49)	0.90	0.33	0.41
Internal Carotid Artery IMT	1	0.54 (−0.47 to 1.55)	1.95 (0.83 to 3.07)	1.08 (0.22 to 1.95)	0.04	0.41	0.18
	2	0.52 (−0.44 to 1.50)	2.06 (0.98 to 3.16)	1.01 (0.17 to 1.85)	0.02	0.44	0.10
	3	−0.01 (−1.13 to 1.11)	1.60 (0.33 to 2.87)	0.60 (−0.48 to 1.69)	0.02	0.34	0.13

^aModel 1: main effects of VAT and time segment indicator and their interaction. Model 2: model 1 + age, race, and study site. Model 3: model 2 + smoking, systolic blood pressure, low-density lipoprotein cholesterol, diabetes, and body-mass index.

Bolded estimates indicate P-value < 0.05.

IMT = intima-media thickness; VAT = visceral adipose tissue.