Research Article
Is There Association between Vitamin D Concentrations and Body Mass Index Variation in Women Submitted to Y-Roux Surgery?
Table 5
Comparison of the studied variables in the group submitted to RYGB with and without vitamin D deficiency (
).
| | Variable | 25(OH)D < 20 μg/dL () | 25(OH)D ≥ 20 μg/dL () | value |
| | Studied variables | | | Age (years) | 45.0 ± 9.6 | 45.0 ± 8.4 | 0.994 | | Ethnicity (white) | 18 (66.7%) | 17 (77.3%) | 0.530 | | Menopause (yes) | 11 (40.7%) | 8 (36.4%) | 0.777 | | Use of contraception (yes) | 1 (3.7%) | 5 (22.7%) | 0.077 | | Smoking (yes) | 0 (0.0%) | 3 (13.6%) | 0.084 | | Supplementation (yes) | 17 (63.0%) | 16 (72.7%) | 0.549 | | Regular photoprotection (yes) | 10 (37.0%) | 10 (45.5%) | 0.574 | | Time since surgery (years) | 3.5 ± 1.2 | 3.2 ± 0.9 | 0.361 | | BMI variation (kg/m2) | 32.4 ± 4.8 | 28.0 ± 3.3 | 0.002 | | 25(OH)D (ng/mL) | 14.2 ± 3.5 | 32.9 ± 10.0 | <0.001 | | Parathormone (pg/mL) | 69.9 ± 25.2 | 52.2 ± 23.3 | 0.015 | | Body composition | | | Current BMI (kg/m2) | 32.6 ± 4.2 | 30.1 ± 4.5 | 0.149 | | Total muscle mass (kg) | 47.9 ± 5.3 | 46.7 ± 4.9 | 0.417 | | Total skeletal muscle mass (kg) | 18.4 ± 4.9 | 17.2 ± 6.8 | 0.507 | | Skeletal muscle mass index (kg/m2) | 7.7 ± 1.2 | 7.5 ± 1.3 | 0.655 | | Adipose mass (kg) | 31.8 ± 8.7 | 27.7 ± 7.2 | 0.096 | | Total fat percentage (%) | 38.2 ± 5.8 | 35 ± 6.0 | 0.129 |
|
|
BMI: body mass index; significance level of Student’s t-test.
|
