Table 3.

Association between PFD and presence of IPH.

	IPH
	Univariate regression		Model 1		Model 2		Model 3
	OR (95% CI)	p-value	OR (95% CI)	p-value	OR (95% CI)	p-value	OR (95% CI)	p-value
PFD	1.70 (1.43–2.04)	<0.001	1.64 (1.36–1.97)	<0.001	1.96 (1.41–2.73)	<0.001	2.33 (1.46–3.72)	<0.001

Model 1: adjusted for age. Model 2: adjusted for age, calcification, ulceration, degree of luminal stenosis, and maximum plaque thickness. Model 3: adjusted for BMI, hypertension, hyperlipidemia, diabetes, calcification, degree of stenosis, maximum plaque thickness, and ulceration. OR, odds ratio; CI, confidence interval; BMI, body mass index; PFD, pericarotid fat density.