Table 1.
Comparison of one-year percentage changes of the volumetric bone mineral density (vBMD) of trabecular and cortical bone of lumbar vertebrae (L1–L4) from the baseline between the control patients (CTR group) and the patients subjected to total gastrectomy (GX group)*
| One-year percentage change |
|||
|---|---|---|---|
| Investigated parameter | CTR group | GX group | P value |
| L1 vertebra | |||
| Calcium hydroxyapatite density in the trabecular bone (mg/mL) | –1.9% | –16.6%† | 0.016 |
| Calcium hydroxyapatite density in the cortical bone (mg/mL) | –0.3% | –10.5%† | 0.048 |
| L2 vertebra | |||
| Calcium hydroxyapatite density in the trabecular bone (mg/mL) | –2.7% | –15.7%† | 0.006 |
| Calcium hydroxyapatite density in the cortical bone (mg/mL) | –0.7% | –9.1%† | 0.048 |
| L3 vertebra | |||
| Calcium hydroxyapatite density in the trabecular bone (mg/mL) | –4.0% | –15.5%† | 0.042 |
| Calcium hydroxyapatite density in the cortical bone (mg/mL) | +2.3% | –5.7% | 0.112 |
| L4 vertebra | |||
| Calcium hydroxyapatite density in the trabecular bone (mg/mL) | –3.7% | –11.9%† | 0.055 |
| Calcium hydroxyapatite density in the cortical bone (mg/mL) | +1.4% | –3.0% | 0.523 |
| Average L1–L4 vertebrae | |||
| Calcium hydroxyapatite density in the trabecular bone (mg/mL) | –3.0% | –15.0%† | 0.017 |
| Calcium hydroxyapatite density in the cortical bone (mg/mL) | +0.5% | –7.2% | 0.080 |
*
Values are means.
†
Statistically significant differences versus percentage changes in CTR group for P ≤ 0.05 by non-paired Student’s t-test for non-dependent variables.