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Table 1 Breast cancer specific survival by Kaplan-Meier analysis according to clinical parameters

From: Histone demethylase GASC1 - a potential prognostic and predictive marker in invasive breast cancer

Variable

n

Means of survival time (years) [n]

p-value

  

GASC1 negative

GASC1 positive

 

Overall

355

14.6 [198]

16.6 [157]

0.017

Age

    

 <=55

172

15.0 [107]

16.3 [65]

0.292

 >55

183

14.0 [91]

16.4 [92]

0.017 [0.019]

Tumor size

    

 T1

168

16.6 [92]

17.0 [76]

0.376

 T2+T3+T4

187

12.7 [106]

15.8 [81]

0.010 [0.749]

Nodal status

    

 negative

193

17.1 [111]

18.0 [82]

0.109

 positive

162

11.4 [87]

14.8 [75]

0.012 [0.520]

Clinical stage

    

 I

120

17.8 [66]

17.8 [54]

0.579

 II+III+IV

230

12.8 [130]

15.9 [100]

0.005 [0.820]

  1. The p-values in the first column are calculated using Log Rank (Mantel-Cox) test for equality of survival distributions for the different levels of GASC1 (significant p-values in bold). The p-values in the second column in the squared brackets are calculated using Fisher’s exact test to examine if there is a difference in proportion of GASC1 negative and positive cases in groups of different clinical parameters. n – number of cases.