Table 1 Demographic and lifestyle information for both groups in addition to bone mineral density (BMD) measurements
From: Low bone mineral density following gastric bypass is not explained by lifestyle and lack of exercise
Variable | RYGBP (n = 71) | Controls (n = 94) | p-value |
|---|---|---|---|
Age (years) | 42.4 ± 5.6 | 32.4 ± 5.0 | < 0.001 |
BMI (kg/m2) | 33.0 ± 5.8 | 23.9 ± 2.9 | < 0.001 |
Corticosteroid use (yes/no) | 9/62 | 7/66 | 0.556 |
Menarche (years) | 12.56 | 12.63 | 0.825 |
Calcium intake (mg/day) | 681 ± 397 | 327 ± 126 | < 0.001 |
Activity, 5 years ago (min/week) | 208 ± 248 | 287 ± 336 | 0.146 |
Present activity (min/week) | 312 ± 356 | 315 ± 306 | 0.886 |
BMD femoral neck | 0.98 ± 0.12 | 1.04 ± 0.13 | 0.004 |
BMD hip | 1.02 ± 0.12 | 1.07 ± 0.13 | 0.008 |
BMD spine | 1.22 ± 0.13 | 1.24 ± 0.14 | 0.487 |