|
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 (%)
