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Table 2 P-STAT3 expression and clinicopathologic features in HNSCC

From: Repression of GPRC5A is associated with activated STAT3, which contributes to tumor progression of head and neck squamous cell carcinoma

Characteristic Case number P-STAT3 staining score Non-parametric tests value P value
Mean Std. error
Gender
 Male 47 53.0 8.08 Z = −1.536 0.125
 Female 39 62.0 8.81   
Smoking history
 Yes 30 58.0 4.52 Z = −0.218 0.827
 No 56 57.0 3.68   
Drinking history
 Yes 22 56.0 5.51 Z = −0.437 0.662
 No 64 57.0 3.35   
Lymph node metastasis
 Yes 56 58.0 4.99 Z = −0.889 0.374
 No 30 56.0 3.49   
T stage
 T1 22 57.0 4.28 χ2 = 3.011 0.390
 T2 36 62.0 4.47   
 T3 13 54.0 8.27   
 T4 15 48.0 7.85   
TNM stage
 I 20 58.0 4.75 χ2 = 0.415 0.937
 II 24 58.0 6.12   
 III 21 60.0 5.52   
 IV 21 53.0 6.34   
Degree of tumor differentiation
 Well 33 47.0 4.57 χ2 = 14.376 <0.01*
 Moderately 45 60.0 3.76   
 Poorly 8 81.0 4.55   
  1. * P value <0.05 was defined as significant