Table 1 Clinical characteristics of the study population
From: Abnormal bone mineral density and content in girls with early-onset anorexia nervosa
EO-AN patients | Control individuals | Patients vs. control individuals | |
|---|---|---|---|
N=67 | N=67 | ||
median (25th percentile;75th percentile) | median (25th percentile;75th percentile) | p-value | |
Chronological age (yrs) | 12.4 (10.9; 13.7) | 11.6 (9.9; 12.4) | p< 0.01 |
Tanner pubertal stage | |||
1 and 2 | 38 (57%) | 38 (57%) | |
3 to 5 | 29 (43%) | 29 (43%) | |
Height (SDS) | −0.13 (− 0.86; 1.03) | 0.76 (− 0.21; 1.45) | p< 0.01 |
Weight (SDS) | −1.46 (−2.01; − 0.83) | 0.80 (0.22; 1.45) | p< 0.01 |
BMI (kg/m2) | 14.0 (12.7; 15.2) | 18.1 (16.5; 20.1) | p< 0.01 |
BMI (SDS) | −2.20 (−3.25; − 1.24) | 0.53 (− 0.29; 1.16) | p< 0.01 |
Secondary amenorrhoea | 13 (19%) | ||
Age at EO-AN onset (yrs) | 11.0 (9.5; 12.5) | ||
Disease duration (yrs) | 1.3 (0.6; 2.0) | ||