Association of patients’ characteristics with rate of positive YKL-40 intratumoral staining and YKL-40 serum levels.

YKL-40 intratumoral staining of each breast cancer patient were compiled as n (%) and differences in YKL-40 intratumoral staining between specific patients’ characteristics were compared using Pearson Chi-square test.
YKL-40 serum concentrations for each characteristic were presented as mean±SD. Differences in serum YKL-40 levels between specific patients’ characteristics were compared by using one-way ANOVA with post-hoc Bonferroni comparison or two-sample t-test.
*P<0.05, indicated a significance.
a,bP<0.0167 (0.05/3), indicated a significant difference compared with the afirst category and bsecond category of the specific variable.