Changes in serum laboratory values according to time after surgery
| Sleeve gastrectomy | Adjustable gastric banding | Roux-en-Y gastric bypass | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Preoperation | 1 year | 2 years | P-value | Preoperation | 1 year | 2 years | P-value | Preoperation | 1 year | 2 years | P-value | |||
| Hemoglobin (×103/μL) | 14.1±1.3 | 13.3±1.3 | 12.9±1.9 | 0.101 | 14.2±1.6 | 13.0±1.2 | 13.6±1.4 | 0.091 | 14.2±2.0 | 13.8±1.4 | 13.4±0.8 | 0.381 | ||
| Hematocrit (%) | 41.2±3.3 | 39.0±3.2 | 38.5±4.8 | 0.522 | 41.1±3.8 | 38.2±3.7 | 39.6±3.7 | 0.220 | 41.0±4.5 | 39.7±3.2 | 38.8±3.2 | 0.658 | ||
| Fasting blood sugar (mg/dL) | 111.9±39.5 | 91.8±14.2 | 92.0±7.9 | <0.001 |
99.0±16.1 | 96.8±12.3 | 95.6±7.4 | 0.004 |
134.6±45.7 | 102.7±10.2 | 102.6±8.6 | <0.001 |
||
| HbA1c (%) | 6.2±1.4 | 5.4±0.4 | 5.3±0.3 | <0.001 |
5.7±0.5 | 5.6±0.4 | 5.3±0.3 | 0.458 | 8.0±2.1 | 5.9±0.5 | 5.7±0.3 | <0.001 |
||
| Total cholesterol (mg/dL) | 200.8±37.7 | 188.5±32.0 | 182.9±27.6 | 0.068 | 196.8±33.0 | 180.7±21.3 | 188.8±19.1 | 0.106 | 182.1±41.7 | 171.6±29.8 | 175.1±24.4 | 0.072 | ||
| High-density lipoprotein (mg/dL) | 51.4±13.4 | 65.2±13.5 | 67.8±13.2 | 0.422 | 49.8±10.7 | 53.5±11.9 | 52.6±8.4 | 0.408 | 50.9±12.0 | 50.8±8.4 | 52.6±11.2 | 0.536 | ||
| Low-density lipoprotein (mg/dL) | 127.2±38.2 | 104.2±29.2 | 99.3±25.0 | 0.042 |
120.4±26.7 | 110.6±23.3 | 115.0±21.1 | 0.002 |
108.2±39.0 | 104.9±30.1 | 98.5±30.5 | 0.447 | ||
| Triglycerides (mg/dL) | 151.7±103.3 | 80.0±35.8 | 73.9±30.4 | 0.001 |
129.1±64.7 | 108.5±54.8 | 109.2±54.8 | 0.012 |
149.7±81.8 | 115.9±36.2 | 112.3±35.8 | 0.004 |
||
| Iron (mcg/dL) | 97.5±42.1 | 102.9±37.6 | 103.0±52.9 | 0.362 | 111.8±43.5 | 96.4±33.3 | 98.6±26.4 | <0.001 |
81.8±25.7 | 87.6±25.3 | 95.7±32.0 | 0.260 | ||
| Calcium (mg/dL) | 9.2±0.4 | 9.2±0.4 | 9.2±0.4 | 0.088 | 9.2±0.3 | 9.2±0.3 | 9.3±0.3 | 0.757 | 9.2±0.4 | 9.3±0.2 | 9.2±0.2 | 0.088 | ||
| Vitamin B1 (ng/mL) | 146.3±36.3 | 127.0±40.9 | 124.6±23.9 | 0.270 | 149.1±17.1 | 133.6±24.3 | 126.4±27.7 | 0.022 |
150.8±38.6 | 141.2±22.7 | 135.4±27.2 | 0.096 | ||
| Vitamin B12 (ng/mL) | 576.3±402.0 | 459.5±179.2 | 515.7±154.9 | <0.001 |
551.1±239.2 | 527.7±175.3 | 523.9±178.7 | 0.009 |
583.5±158.5 | 500.4±153.3 | 502.7±145.9 | 0.130 | ||
| Folic acid (ng/mL) | 8.0±4.5 | 10.2±7.3 | 8.5±3.8 | 0.169 | 8.7±3.9 | 8.2±3.8 | 7.6±3.5 | 0.001 |
10.6±4.9 | 11.5±5.1 | 11.6±6.0 | 0.038 |
||
| Magnesium (mg/dL) | 2.2±0.3 | 2.2±0.3 | 2.2±0.2 | 0.438 | 2.5±0.3 | 2.4±0.4 | 2.5±0.6 | <0.001 |
2.0±0.1 | 2.3±0.3 | 2.2±0.1 | 0.061 | ||
Values are presented as mean±standard deviation.
*P<0.05, **P<0.01, ***P<0.001.