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Table 1 The comparison of median survival time in different subgroups

From: The prognostic significance of human epidermal growth factor receptor family protein expression in operable pancreatic cancer

Variable Number (%) Median survival time (months) Standard error (months) P value
Sex     0.144
 Male 28 (40.0) 11.93 3.98  
 Female 42 (60.0) 16.64 6.11  
Age     0.059
 < 60 y 34 (48.6) 49.18 16.69  
 ≥ 60 y 36 (51.4) 13.38 2.64  
Tumor family history     0.795
 Yes 5 (7.1) 11.21 0.68  
 No 65 (92.9) 16.64 4.38  
Smoking history     0.591
 Yes 13 (18.6) 17.23 11.98  
 No 57 (81.4) 15.88 4.18  
Drinking history     0.902
 Yes 7 (10.0) 17.22 7.88  
 No 63 (90.0) 15.88 4.41  
Tumor location     0.256
 Head 45 (64.3) 13.38 1.92  
 Body + tail 25 (35.7) 17.23 5.21  
Stump cancer     0.000
 Yes 6 (8.6) 4.87 0.73  
 No 64 (91.4) 17.69 8.53  
Differentiation     0.000
 Lower 17 (24.3) 9.34 2.91  
 Higher 53 (75.7) 33.21 18.47  
Pathology type     0.001
 Adenocarcinoma 53 (75.7) 13.38 1.68  
 Non-adenocarcinoma 17 (24.2) 49.18 1.02  
T stage     0.188
 T1 + T2 34 (48.6) 22.32 11.19  
 T3 + T4 36 (51.4) 12.07 2.20  
N stage     0.007
 N0 39 (55.7) 34.65 13.76  
 N1 31 (44.3) 11.57 0.79  
M stage     0.092
 M0 62 (88.6) 17.23 5.86  
 M1 8 (11.4) 7.66 4.67  
CA19-9     0.000
 < 1200 U/ml 57 (81.4) 32.88 9.20  
 > 1200 U/ml 13 (18.6) 10.59 3.29