After 75g glucose ingestion, glucose responses in all 4 groups were the same (Fig 1, top graph). This means OGT with glucose assay only is unable to detect any difference between 4 groups. However, if insulin assay was added (as Kraft did), insulin responses (at 30, 60 & 120 min) were significantly higher in pts with atherothrombotic infarction compared with other 3 groups (Fig 1, bottom graph).
So, my conclusion is atherothrombotic cerebral infarction is an insulin resistant state, just like hypertension, T2DM & obesity. They selected non-obese, non-diabetic & non-hypertensive stroke pts in this study, so insulin resistance appears to be the important determinant of atherosclerosis.