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Table 3 Characteristics of the study population (N = 1064).

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

Characteristic Result
Diabetes (%) 373 (35%)
Hypertension (%) 451 (42%)
Biliary disease (%) 15 (1%)
Contraceptive or estrogen use (%) 116 (11%)
Iron supplementation (%) 80 (8%)
Tobacco Use (known for N = 883)  
   Current (%) 97 (11%)
   Quit (%) 332 (38%)
   Never (%) 454 (51%)
Alcohol Use (known for N = 764)  
   Yes (%) 271 (35%)
   No (%) 493 (65%)
Any steatosis on liver pathology (%) 718 (67%)
Fibrosis (%) 253 (24%)
Cirrhosis (%) 24 (2%)
Laboratory results  
   Complete blood counts (known for N = 1038)  
    WBC (K/uL), Median [Q1, Q3] 7.8 [6.5, 9.4]
    RBC (M/uL), Median [Q1, Q3] 4.6 [4.3, 4.9]
    Hemoglobin (gm/dL), Median [Q1, Q3] 13.7 [13.0, 14.5]
    HCT (%), Median [Q1, Q3] 40.0 [37.9, 42.3]
    MCV (fL), Median [Q1, Q3] 87.3[84.3, 90.0]
    MCH (pg/cell), Median [Q1, Q3] 30.0[28.8, 31.0]
    MCHC (gm/dL), Median [Q1, Q3] 34.3 [33.9, 34.7]
    Platelet count (K/uL), Median [Q1, Q3] 284 [245, 331]
   Folic acid (ng/dL), Median [Q1, Q3] 14.9 [10.9, 20.0]
   Serum zinc (ug/L), Median [Q1, Q3] 742 [667, 819]