Table 1.
Controls (n=40) | Anorexia Nervosa (n=110) | P (Controls vs. AN) | |
---|---|---|---|
Age (y) | 15.6±0.2 | 16.5±0.2 | 0.001 |
Bone age (y) | 15.8±0.2 | 16.2±0.1 | Ns |
Weight (kg) | 57.9±1.4 | 47.2±0.5 | <0.0001 |
Height (cm) | 164.3±0.9 | 164.3±0.6 | Ns |
BMI (kg/m2) | 21.4±0.5 | 17.4±0.1 | <0.0001 |
%IBW (BMI) | 106.3±2.4 | 84.6±0.6 | <0.0001 |
Tanner stage (breasts) | 4.7±0.1 | 4.6±0.1 | Ns |
Tanner stage (pubic hair) | 4.6±0.1 | 4.5±0.1 | Ns |
Amenorrhea duration (y) | - | 0.90±0.08 | - |
Exercise activity (h) | 16.5±1.7 | 16.8±1.3 | Ns |
Calcium intake (mg) | 1180±85 | 2040±84 | <0.0001 |
Vitamin D intake (IU) | 191±28 | 554±28 | <0.0001 |
DXA Measures | |||
Fat mass (kg) | 15.9±0.8 | 8.9±0.3 | <0.0001 |
Lean mass (kg) | 42.0±0.8 | 37.7±0.4 | <0.0001 |
Percent body fat | 26.2±0.8 | 18.2±0.5 | <0.0001 |
Lumbar BMD (g/cm2) | 0.972±0.016 | 0.907±0.010 | 0.0009 |
Lumbar BMD Z-score | 0.136±0.1476 | −0.623±0.098 | <0.0001 |
Lumbar BMAD (g/cm3) | 0.152±0.0025 | 0.140±0.001 | <0.0001 |
Hip BMD (g/cm2) | 0.974±0.0189 | 0.887±0.011 | <0.0001 |
Hip BMD Z-score | 0.277±0.1793 | −0.644±0.098 | <0.0001 |
Biochemical Parameters | |||
Vitamin D (ng/ml) | 23.1±1.6 | 31.8±0.9 | <0.0001 |
PTH (pg/ml) | 11.2±1.8 | 20.3±1.9 | 0.004 |
Estradiol (pg/ml) | 66.2±13.3 | 39.6±5.4 | 0.03 |
IGF-1 (ng/ml) | 361.6±16.2 | 239.3±11.3 | <0.0001 |
Leptin (ng/ml) | 12.4±1.0 | 4.6±0.4 | <0.0001 |
P1NP (ng/ml) | 200.8±23.8 | 110.6±13.9 | 0.0007 |
CTX (ng/ml) | 1.01±0.06 | 0.78±0.04 | 0.002 |
Ns: not significant