Table 6 Deficiency in micronutrients and trace elements at baseline (preoperatively) and postoperatively. The sample of patients (n) indicates patients tested (absolute number and %) and % is the percentage of total patients with deficiency.

From: One anastomosis gastric bypass produces considerable weight reduction and resolution of medical complications with an acceptable rate of nutritional deficiencies

Micronutrients & trace elements

Baseline n (%) tested

% of total n with deficiency

    

*Adj. Calcium (2.2-2.6 mmol/l)

38 (37.6%)

0%

    

B12 (180-1000) pg/ml

36 (35.6%)

3.0%

    

Vitamin D ≥50 nmol/l

53 (52.4%)

30.7%

    

Ferritin (10-300) ng/L Female (25-350) ng/L male

42 (41.5%)

6.9%

    

Folate (3.1-25) ug/l

39 (38.6%)

4.0%

    

Zinc (11-19 µmol/L.)

2(1.9%)

1%

    

Micronutrients & trace elements

6 months

12 months

24 months

n

%

n

%

n

%

Adj. Calcium (2.2-2.6mmol)

49

0.0%

48

2.0%

35

1.0%

B12 (180-1000 pg/ml)

49

3.0%

57

0.0%

45

0.0%

Vitamin D (≥50 nmol/l)

42

8.9%

46

8.9%

30

3.0%

Ferritin (3.1-20.5 ug/L)

53

4.0%

56

3.0%

43

4.0%

Folate (10-300 ng/L female & 25-350 ng/L male)

55

8.9%

55

13.9%

43

5.9%

Zinc (11-19 µmol/L.)

17

7.9%

27

15.8%

20

8.9%

  1. *Adjusted calcium = serum calcium [mg/dL] + 0.8 * (normal albumin - serum albumin [g/dL]).
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