Table 1.
Clinical Characteristics and Body Composition at Baseline in Girls with Anorexia Nervosa (AN) who gained ≥10% BMI (AN-1) vs. those that did not (AN-0) vs. Healthy Controls (HC)
| AN (n=45) | HC (n=45) | P (AN vs. HC) | AN-0 (n=23) | AN-1 (n=22) | P (AN-1 vs. AN-0) | |
|---|---|---|---|---|---|---|
| Clinical Characteristics | ||||||
| Age (y) | 15.97±0.23 | 14.72±0.24 | 0.0003 | 15.83±0.30 | 16.12±0.34 | 0.53 |
| Age of Menarche (y) | 12.8±0.2 | 12.7±0.3 | 0.77 | 12.6±0.4 | 13.0±0.4 | 0.49 |
| Height (cm) | 164.6±1.0 | 163.2±1.0 | 0.33 | 163.1±1.5 | 166.2 ±1.4 | 0.14 |
| Weight (kg) | 45.3±0.9 | 54.2±1.1 | <0. 001 | 44.6±1.4 | 45.9±1.0 | 0.46 |
| Body Composition | ||||||
| BMI (kg/m2) | 16.9±0.2 | 20.4±0.3 | <0.001 | 16.9±0.3 | 16.8±0.3 | 0.74 |
| BMI z-score | −1.93±0.18 | 0.15±0.11 | <0.001 | −1.87 ±0.28 | −1.99±0.23 | 0.75 |
| % Body fat (DXA) | 16.8±0.8 | 27.2±0.8 | <0.001 | 17.5±1.2 | 16.0±1.1 | 0.38 |
| Lean Mass (kg) | 36.5±0.7 | 38.6±0.8 | 0.052 | 35.5±1.1 | 37.5±1.0 | 0.20 |
| Fat Mass (kg) | 7.56±0.42 | 16.16±0.66 | <0.001 | 7.67±0.63 | 7.45±0.55 | 0.79 |
Values presented as mean ± SEM. P values were obtained from Student’s t test. AN: Anorexia Nervosa; HC; Healthy Controls; AN-0: AN subjects who did not gain ≥10% BMI at 6 or 12 months; AN-1: AN subjects who gained ≥10% BMI by 6 or 12 months.