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Table 5 Ferritin and gastrointestinal/colorectal cancer in patients with and without anemia

From: Ferritin above 100 mcg/L could rule out colon cancer, but not gastric or rectal cancer in patients with involuntary weight loss

  

Gastrointestinal cancer

Colorectal cancer

   

AUC (95%CI)

 

AUC (95%CI)

Anemia, present (145 patients, 15/9 with gastrointestinal/ colorectal cancer)

Ferritin

P < 0.001 *

 

P < 0.001 *

 
 

(100mcg/L)

    
 

Ferritin

P < 0.001 *

 

P = 0.005 *

 
 

Ferritin (mcg/L)

P = 0.001

0.799

P < 0.001

0.839

 

(50 mcg/L)

    
   

(0.713-0.813)

 

(0.765-0.913)

Anemia, absent (142 patients, 7/5 with gastrointestinal/ colorectal cancer)

Ferritin (100mcg/L)

P = 0.125*

 

P = 0.375*

 
 

Ferritin

P = 0.196*

 

P = 0.154*

 
 

(50 mcg/L)

    
 

Ferritin (mcg/L)

P = 0.536

0.663

P = 1.000

0.635

   

(0.468-0.859)

 

(0.391-0.880)

  1. * Fisher’s exact test.
  2. Mann–Whitney U test.