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. 2012 Jul 21;18(27):3527–3536. doi: 10.3748/wjg.v18.i27.3527

Table 1.

Correlation between polo-like kinase-1 gene expression and clinicopathological parameters in 56 patients with hepatocellular carcinoma

Clinicopathological parameters n Relative PLK1 gene expression (mean ± SE) P value
Age (yr)
< 65 42 18.35 ± 2.95 0.5701
≥ 65 14 16.15 ± 5.11
Sex
Male 49 17.24 ± 2.74 0.4361
Female 7 21.72 ± 6.83
Histologic type of tumor
Well differentiated 2 14.00 ± 13.10 0.8462
Moderately differentiated 41 17.39 ± 2.92
Poorly differentiated 13 19.69 ± 5.87
Liver cirrhosis
Present 44 16.05 ± 2.42 0.4971
Absent 12 24.22 ± 7.83
Pathological stage
 I 1 5.68 0.8492
II 5 14.11 ± 6.67
III 32 17.68 ± 2.93
IV 18 19.72 ± 5.74
1

P value was determined by the Mann-Whitney U test;

2

P value was determined by the Kruskal-Wallis test. PLK1 gene expression in every hepatocellular carcinoma tissues was quantified relative to the non-tumor tissues counterparts using 2-∆∆Ct method. PLK1: Polo-like kinase-1.