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Table 2 Association of ISG15 immunoreactivity with clinical and pathological characteristics assessed in clinical routine examination of the validation set

From: The ubiquitin-like molecule interferon-stimulated gene 15 (ISG15) is a potential prognostic marker in human breast cancer

Characteristic

 

Low ISG15(Score 0 to 3)

High ISG15(Score 4 to 12)

Total n (%)

p-value

Total

 

333 (51.5)

313 (48.5)

646 (100)

n/a

Age ( t -test)

Mean (± SD)

57.3(± 12.2)

59.2 (± 12.4)

58.2 (± 12.3)

0.053

 

Total

333

313

646

 

Age

< 50

91 (52.3)

83 (47.7)

174 (100)

0.05

 

50–59

108 (59.3)

74 (40.7)

182 (100)

 
 

60–69

80 (45.7)

95 (54.3)

175 (100)

 
 

≥ 70

54 (47.0)

61 (53.0)

115 (100)

 
 

total

333 (51.5)

313 (48.5)

646 (100)

 

pT a

pT1

185 (56.9)

140 (43.1)

325 (100)

0.006

 

PT2 to 4

139 (45.9)

164 (54.1)

303 (100)

 
 

Total

324 (51.6)

304 (48.4)

628 (100)

 

pN a

pN0

193 (52.9)

172 (47.1)

365 (100)

0.504

 

pN1

134 (50.2)

133 (49.8)

267 (100)

 
 

Total

327 (51.7)

305 (48.3)

632 (100)

 

Grading

1 or 2

240 (55.0)

196 (45.0)

436 (100)

0.007

 

3

90 (43.7)

116 (56.3)

206 (100)

 
 

Total

330 (51.4)

312 (48.6)

642 (100)

 

Hormone receptor Status

Negative

54 (43.2)

71 (56.8)

125 (100)

0.177

 

Positive

234 (50.0)

234 (50.0)

468 (100)

 
 

Total

288 (48.6)

305 (51.4)

593 (100)

 
  1. aAccording to Sobin LH, Wittekind CH: UICC: TNM Classification of Malignant Tumours. 6th edition, New York: Wiley; 2002 [36]. SD, Standard deviation; n/a, not available; pT, Pathological assessment of the primary tumour; pN, Pathological assessment of the regional lymph nodes.