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Table 4 ICA stenosis degree according to the ipsilateral thickness-to-diameter ratio cut-off for ICA stenosis at either side or for the largest ICA stenosis. Data are presented as mean ± SD. A high thickness-to-diameter ratio is indicative for a higher degree of ipsilateral ICA stenosis

From: Definition of common carotid wall thickness affects risk classification in relation to degree of internal carotid artery stenosis: the Plaque At RISK (PARISK) study

ICA plaque N ICAs CCA plaque Cut-off ICA stenosis p-value
Either side 192 yes/no <17% 45 ± 19% <0.001
179 >17% 52 ± 16%
185 no <17% 45 ± 19% 0.15
46 >17% 50 ± 18%
Largest 91 yes/no <16% 56 ± 13% 0.03
94 >16% 61 ± 12%
90 no <16% 56 ± 13% 0.3
23 >16% 58 ± 12%