borderline significanceP = 0.054
No significant differences in Hsp70 concentration between moderate–severe CSU and mild CSU (median: 0.39 vs 0.37 ng/mL, P = 0.77) were observed; although moderate–severe CSU tended toward higher plasma Hsp70 concentration as compared with the controls (median: 0.39 vs 0.29 ng/mL, P = 0.054, near borderline significance).