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Table 3 Overall survival by the Kaplan–Meier method

From: Prognostic nutritional index is an independent prognostic factor for older patients aged ≥ 85 years treated by gastric endoscopic submucosal dissection

Variable No. of patients OS P value
Gender    
 Male 42 0.50 0.19
 Female 28 0.57  
ECOG PS    
 0–1 61 0.57 0.11
 2–3 9 0.22  
GNRI    
 ≥ 92 60 0.55 0.35
 < 92 10 0.40  
CCI    
 0–2 59 0.54 0.22
 ≥ 3 11 0.46  
NLR    
 ≥ 2.6 30 0.43 0.066
  < 2.6 40 0.60  
PNI    
  ≥ 42.5 60 0.58 0.001
  < 42.5 10 0.20  
Serum albumin    
  ≥ 3.5 g/dl 60 0.58 0.029
  < 3.5 g/dl 10 0.20  
Tumor location    
 Upper 13 0.62 0.98
 Middle 23 0.48  
 Lower 34 0.53  
Tumor size    
 ≥ 20 mm 17 0.53 0.66
 < 20 mm 53 0.53  
Macroscopic appearance    
 Elevated 40 0.45 0.11
 Depressed/flat 30 0.63  
Histology    
 Differentiated type 69 0.52 0.60
 Undifferentiated type 1 1.00  
Depth of invasion    
 M/SM1 67 0.51 0.63
 SM2 3 1.00  
Lymphatic invasion    
 Present 4 0.50 0.88
 Absent 66 0.53  
Ulcerative findings    
 Present 7 0.43 0.80
 Absent 63 0.54  
Curability    
 eCuraA/B 62 0.53 0.76
 eCuraC-2 8 0.50  
  1. OS, overall survival; ECOG PS, Eastern Cooperative Oncology Group performance status; GNRI, geriatric nutritional risk index; CCI, Charlson comorbidity index; NLR, Neutrophil to lymphocyte ratio; PNI, Prognostic nutritional index; M, mucosa; SM1, superficial portion of the submucosa within 500 μm from the muscularis mucosae; SM2, deep portion of the submucosa ≥ 500 μm from the muscularis mucosae