Table 4.
Comparison between mean anthropometric values and whole-blood HbA1c and trace element concentrations 9 months after surgery (compared to pre-surgery values) in males and females
| Pre-surgery | 9 months post-surgery | |||||||
|---|---|---|---|---|---|---|---|---|
| Characteristics | Males | Females | p = value | Significance | Males | Females | p-value | Significance |
| Weight (kg ± SD) | 162.2 ± 14.8 | 137.0 ± 28.4 | 0.038 | * | 112.2 ± 14.9 | 101.7 ± 21.3 | 0.251 | ns |
| BMI (kg/m2 ± SD) | 50.1 ± 3.9 | 51.6 ± 8.2 | 0.667 | ns | 34.7 ± 4.7 | 38.2 ± 5.7 | 0.185 | ns |
| Waist-to-hip (ratio ± SD) | 1.14 ± 0.07 | 1.04 ± 0.06 | 0.002 | ** | 1.07 ± 0.09 | 0.98 ± 0.06 | 0.007 | ** |
| HbA1c mean (% ± SD) | 6.95 ± 1.46 | 6.32 ± 1.20 | 0.312 | ns | 5.93 ± 0.69 | 5.35 ± 0.23 | 0.009 | ** |
| Zinc conc. mean (µmol/L ± SD) | 12.8 ± 2.6 | 13.8 ± 3.8 | 0.549 | ns | 16.2 ± 3.0 | 17.2 ± 6.2 | 0.067 | ns |
| Copper conc. mean (µmol/L ± SD) | 17.5 ± 1.7 | 23.3 ± 3.2 | 0.0003 | *** | 17.0 ± 1.8 | 21.1 ± 2.7 | 0.002 | ** |
| Magnesium conc. mean (mmol/L ± SD) | 0.71 ± 0.06 | 0.78 ± 0.08 | 0.034 | ns | 0.85 ± 0.08 | 0.86 ± 0.10 | 0.834 | ns |
| Selenium conc. mean (µmol/L ± SD) | 1.14 ± 0.15 | 1.02 ± 0.20 | 0.153 | ns | 1.11 ± 0.18 | 1.09 ± 0.29 | 0.897 | ns |
| Zinc/copper (ratio ± SD) | 0.74 ± 1.29 | 0.59 ± 1.2 | 0.020 | * | 0.96 ± 0.21 | 0.82 ± 0.32 | 0.323 | ns |
The p-values were calculated using T-test (non-paired). Statistical significance is indicated as: ns, not significant (p>0.05), * for p≤0.05, ** for p≤0.01 and *** for p≤0.001