Table 4.
Number of deficiencies (percentage in parenthesis) in micronutrients following sleeve gastrectomy
| Micronutrient (normal value range) | Preoperative n = 209 (%) | 1 yr n = 197 (%) | 2 yr n = 181 (%) | 3 yr n = 149 (%) | 4 yr n = 124 (%) | 5 yr n = 103 (%) | 6 yr n = 60 (%) |
|---|---|---|---|---|---|---|---|
| Hemoglobin (male:14–16 pg/ml, female:12–16 pg/ml) |
36 (17.2) | 54 (27.4) p = 0.014 |
64 (35.4) p < 0.001 |
58 (38.9) p < 0.001 |
51 (41.1) p < 0.001 |
37 (35.9) p < 0.001 |
22 (36.7) p = 0.001 |
| Iron (60–180 µg/dl) |
46 (22.0) | 32 (16.2) p = 0.141 |
32 (17.7) p = 0.286 |
40 (26.8) p = 0.291 |
39 (31.5) p = 0.056 |
22 (21.4) p = 0.896 |
15 (25) p = 0.625 |
| Ferritin (male: 12–300 ng/dl, female: 12–150 ng/dl) |
11 (5.3) | 42 (21.3) p < 0.001 |
64 (35.4) p < 0.001 |
61 (40.9) p < 0.001 |
55 (44.4) p < 0.001 |
39 (37.9) p < 0.001 |
26 (43.3) p < 0.001 |
| Folic acid (5.6–36 ng/ml) |
3 (1.4) | 4 (2.0) p = 0.645 |
3 (1.7) p = 0.859 |
1 (0.7) p = 0.498 |
0 (0) p = 0.180 |
0 (0) p = 0.222 |
1 (1.7) p = 0.896 |
| Vitamin B12 (200–900 pg/dl) |
8 (3.8) | 30 (15.2) p < 0.001 |
18 (9.9) p = 0.016 |
12 (8.1) p = 0.086 |
4 (3.2) p = 0.775 |
10 (1.0) p = 0.036 |
7 (11.7) p = 0.019 |
| Magnesium (1.7–2.2 mg/dl) |
62 (29.7) | 13 (11.7) p < 0.001 |
32 (17.7) p = 0.005 |
26 (17.4) p = 0.008 |
19 (15.3) p = 0.003 |
22 (21.4) p = 0.120 |
12 (20.0) p = 0.139 |
| Phosphorus (2.8–4.5 mg/dl) |
11 (5.3) | 16 (8.1) p = 0.248 |
8 (4.4) p = 0.700 |
6 (4.0) p = 0.588 |
12 (9.7) p = 0.125 |
5 (4.9) p = 0.878 |
2 (3.0) p = 0.539 |
| Parathormone (10–55 pg/ml) |
6 (2.9) | 1 (0.5) p = 0.068 |
1 (0.5) p = 0.085 |
3 (2.0) p = 0.609 |
1 (0.8) p = 0.204 |
1 (1.0) p = 0.287 |
1 (1.7) p = 0.606 |