Table 3.
Nutritional deficiencies in each surgery group pre-operation and during follow-up
| Nutritional deficiencies | Surgical technique | Pre operation | Post operation | ||
|---|---|---|---|---|---|
| 12th month | 24th month | P-value | |||
| Iron deficiency Anemia | SG | 326(15.3) | 202 (25.1) | 41 (27.7) | <.001 |
| GB | 199 (18.8) | 197 (39.6) | 88 (55.0) | <.001 | |
| P-value | .014 | <.001 | <.001 | – | |
| Hematocrit, deficiency | SG | 159 (7.7) | 134(16.7) | 28 (18.9) | <.001 |
| GB | 101 (10.0) | 148 (29.8) | 67 (42.1) | <.001 | |
| P-value | .034 | <.001 | <.001 | ||
| Ferritin deficiency | SG | 105 (6.9) | 91 (15.7) | 22 (25.6) | <.001 |
| GB | 69 (8.5) | 99 (25.0) | 56 (45.9) | <.001 | |
| P-value | .163 | <.001 | .003 | – | |
| Iron deficiency | SG | 164 (8.7) | 32 (5.2) | 12 (14.5) | .341 |
| GB | 87 (9.2) | 48 (12.2) | 19 (17.8) | .004 | |
| P-value | .631 | <.001 | .542 | – | |
| Copper deficiency | SG | 65 (3.7) | 26 (5.8) | 8 (8.5) | .002 |
| GB | 41 (4.7) | 22 (8.5) | 11 (13.9) | <.001 | |
| P-value | .211 | .178 | .257 | – | |
| Zinc deficiency | SG | 32 (1.6) | 9 (1.3) | 0 (0.0) | .010 |
| GB | 25 (2.5) | 16 (3.5) | 10 (5.0) | .054 | |
| P-value | .097 | .011 | <.001 | – | |
| Calcium deficiency | SG | 32 (1.6% | 4 (0.6%) | 2 (1.8) | .246 |
| GB | 23 (2.2) | 16 (3.7%) | 5 (4.2) | .121 | |
| P-value | .173 | <.001 | .449 | – | |
| Phosphate deficiency | SG | 32 (1.6) | 2 (0.3) | 0 | .012 |
| GB | 7 (0.7) | 1 (0.2) | 0 | .187 | |
| P-value | .040 | >.999 | – | – | |
| Vitamin B12 deficiency | SG | 251 (12.8) | 78 (10.2) | 8 (3.2 | <.001 |
| GB | 149 (14.9) | 39 (8.3) | 15 (7.6) | <.001 | |
| P-value | .106 | .265 | .037 | – | |
| 25 (OH) vitamin D deficiency | SG | 997 (50.6) | 140 (19.3) | 27 (22.5) | <.001 |
| GB | 484 (49.9) | 83 (19.2) | 23 (17.7) | <.001 | |
| P-value | .726 | .982 | .342 | – | |
| Hypo albuminemia, < 2.5 g/dL | SG | 0 (0.0) | 0 (0.0) | 0 (0.0) | – |
| GB | 0 (0.0) | 11 (1.5) | 3 (1.0) | 0.003 | |
| P-value | – | < 0.001 | 0.060 | – | |
SG sleeve gastrectomy, GB gastric bypass
Data are presented as n (%)