<p>Each box indicates the median. Horizontal lines indicate the interquartile ranges. (<b>C</b>) Diagnostic accuracies of serum YKL-40 and CRP for discriminating acute ischemic stroke patients (n = 100; for statistical assessment of the differences between D1 and D2, 5 of 105 patients were excluded because they [n = 5] dropped out of the D2 test) from controls (n = 34) using receiver operating characteristic (ROC) curves. Numbers in square brackets indicate diagnostic accuracies (area under the ROC curves). D1, within 12 hours of symptom onset; D2, 18–24 hours from baseline (D1); CRP, C-reactive protein. *<i>P</i><0.05. <sup>a</sup><i>P</i><0.05, vs. YKL-40 on D2. <sup>b</sup><i>P</i><0.05, vs. CRP on D1. <sup>c</sup><i>P</i><0.05, vs. CRP on D2. <sup>d</sup><i>P</i><0.05, vs. YKL-40 on D1.</p
