Table 3. Logistic regression hazard models of risk factors for the presence of IPH.
| Presence of IPH | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Univariate regression | Model 1* | Model 2† | ||||||||
| OR | 95%CI | P | OR | 95%CI | P | OR | 95%CI | P | ||
| Shape | ||||||||||
| Type-I | 4.11 | 1.95–8.63 | <0.001 | 4.26 | 1.41–11.25 | <0.001 | 4.01 | 1.36–11.83 | 0.012 | |
| Type-II | 0.50 | 0.21–1.18 | 0.114 | 0.45 | 0.15–1.31 | 0.141 | 0.39 | 0.11–2.34 | 0.515 | |
| Type-III | 0.33 | 0.17–0.65 | 0.001 | 0.29 | 0.13–0.65 | 0.003 | 0.46 | 0.18–1.11 | 0.119 | |
| Location | ||||||||||
| Above BIF | 3.28 | 1.40–7.67 | 0.006 | 4.02 | 1.48–10.95 | 0.006 | 3.21 | 1.07–9.61 | 0.037 | |
IPH: intraplaque hemorrhage; OR: odds ratio; BIF: bifurcation of carotid artery. Model 1 is adjusted for age, sex, smoking history, and statin use; Model 2 is adjusted for age, sex, smoking history, statin use, maximum wall thickness, stenosis, and ulceration.