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Table 4 The relationship between the clinicopathological factors and the preoperative/preoperative PNI in the validation study

From: The prognostic significance of the postoperative prognostic nutritional index in patients with colorectal cancer

  Preoperative PNI Postoperative PNI
  High Low p-value High Low p-value
Gender       
Male 52 18   87 13  
Female 54 5 0.012 73 13 0.679
Age (years)       
≤70 65 8   99 16  
>70 41 15 0.035 61 10 1.000
Location of primary tumor       
Colon 57 15   81 13  
Rectum 49 8 0.361 79 13 1.000
Tumor depth       
≤T3 78 15   110 20  
T4 28 8 0.447 50 6 0.493
Histological type       
Well, Moderately 98 22   147 25  
Poorly, Mucinous 8 1 1.000 13 1 0.696
The number of lymph node metastases       
0 42 10   62 5  
1-3 45 10   67 16  
≥4 19 3 0.844 31 5 0.116
Preoperative CEA (ng/ml)       
≤5 74 15   112 14  
>5 22 8 0.286 39 4 1.000
Preoperative CA19-9 (U/ml)       
≤37 89 21   141 14  
>37 4 2 0.340 8 3 0.088
The amount of blood lost (ml)       
≤100 50 11   87 10  
>100 54 12 1.000 67 16 0.094
Length of operation (min)       
≤240 75 13   103 15  
>240 29 10 0.210 51 11 0.379
Complication(s)       
No 78 15   112 17  
Yes 28 8 0.447 47 9 0.647
Infectious complication(s)       
No 84 19   120 22  
Yes 22 4 1.000 39 4 0.453
The number of hospitalization days (days)       
≤17 56 10   92 9  
>17 50 13 0.493 68 17 0.035
The number of postoperative days before the initiation of dietary intake (days)       
≤3 73 18   120 14  
>3 33 5 0.455 40 12 0.034
Adjuvant chemotherapy       
No 78 13   40 5  
Yes 28 10 0.131 120 21 0.628
  1. CI confidence interval, CEA carcinoembryonic antigen, CA19-9 carbohydrate antigen 19–9, PNI prognostic nutritional index