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Table 8 Comparison of iron status with length of stay.

From: The influence of iron status and genetic polymorphisms in the HFE gene on the risk for postoperative complications after bariatric surgery: a prospective cohort study in 1,064 patients

Length of stay <4 days
N = 947
4+ days
N = 117
p-value
Hepatic Iron Staining 159 (17%) 24 (21%) 0.302
Serum iron (ug/dL)*    
   Median [Q1, Q3] 61 [49, 77] 63 [52, 83] 0.0621
   Abnormal (% > 160) 5 (<1%) 0 (0%) 0.992
Ferritin (ng/mL)*    
   Median [Q1, Q3] 94 [49, 163] 118 [68, 195] 0.00931
   Abnormal (% > 400) 33 (4%) 2 (2%) 0.422
Iron binding capacity (ug/dL)*    
   Median [Q1, Q3] 316 [287, 348] 313 [290, 352] 0.681
   Abnormal (% > 428) 22 (3%) 2 (2%) 0.992
Transferrin saturation (%)*    
   Median [Q1, Q3] 19 [15, 25] 22 [17, 27] 0.0261
   Abnormal (% > 55) 3 (<1%) 0 (0%) 0.992
  1. *Serum iron, ferritin, iron binding capacity, and transferring saturation were available for n = 894, n = 900, n = 895, and n = 891 subjects, respectively.
  2. 1Wilcoxon rank-sum test; 2Fisher's exact test