Table 1.
Clinical and Demographic Characteristics in Patients With Anorexia Nervosa With and Without Purging Behaviora.
| Pediatric Controls |
Anorexia Nervosa |
P Value |
P Value |
||
|---|---|---|---|---|---|
| Healthy (n = 14) | No Purging Behavior (n = 25) | Purging Behavior (n = 5) | Control Patients Versus AN Patients | AN Patients: Purge Versus No Purge | |
| Age (years) | 15 (13, 17) | 13 (12, 15) | 14 (13, 15) | .15 | .23 |
| Gender (female) | 8 (57%) | 22 (88%) | 3 (60%) | .62 | .73 |
| Race (Caucasian) | 12 (86%) | 23 (92%) | 2 (40%) | .23 | .25 |
| Body mass index (mg/kg2) | 20 (17, 23) | 16 (15, 19) | 15 (13, 18) | .02 | .01 |
| BMI Z-score | −0.12 (−0.46, −0.15) | −0.44 (−1.63, −0.11) | −1.01 (−1.83, −0.15) | .002 | .001 |
| % Change in ideal body weight | NA | 85 (83, 03) | 81 (75, 85) | NA | .12 |
| Systolic blood pressure (mm Hg) | 109 (98, 120) | 97 (93, 101) | 90 (86, 95) | .09 | .19 |
| Diastolic blood pressure (mm Hg) | 68 (57, 67) | 60 (58, 64) | 60 (57, 64) | .12 | .82 |
| Amenorrhea | NA | 20 (80%) | 1 (20%) | NA | .13 |
| Potassium | 4.1 (3.2, 4.6) | 3.8 (3.6, 4.0) | 4 (3.7, 4.2) | .34 | .22 |
| White blood cell count | 6.4 (5.6, 7.2) | 6.1 (4.1, 7.8) | 5.5 (4.6, 6.1) | .45 | .45 |
Abbreviations: AN, anorexia nervosa; BMI, body mass index.
a
Data presented as median (interquartile range) or n (percentage).