Table 1:

Demographics, weight and menstrual history on admission in atypical anorexia nervosa (atypical AN) vs. anorexia nervosa (AN)

	Atypical AN (N=48)	AN (N=63)	p-value
Demographics
Age (yrs.), mean (SD)	16.3 (2.6)	16.7 (2.5)	.36
Female, n (%)	43 (89.6%)	58 (92.0%)	.65
Race, n (%)
White	37 (77.1%)	53 (84.1%)	.37
Black/African American	0 (0.0%)	1 (1.6%)
Asian	6 (12.5%)	7 (11.1%)
Multiple/Other	5 (10.4%)	2 (3.2%)
Ethnicity, n (%)
Non-Hispanic	35 (72.9%)	52 (82.5%)	.26
Hispanic or Latino	13 (27.0%)	11 (27.1%)
Weight History, mean (SD)
Highest historical weight (kg)	66.8 (15.0)	54.3 (9.7)	<.001
Highest historical %mBMI*	129.4 (29.1)	104.7 (16.0)	<.001
Weight loss (kg)	14.6 (12.1)	12.7 (6.8)	.30
% weight loss (%)	20 (10.5)	22.3 (8.7)	.21
Rate of weight loss (kg/mo)	1.65 (1.3)	1.62 (1.4)	.92
Admission weight (kg)	52.2 (7.3)	41.6 (5.3)	<.001
%mBMI on admission	95.4% (9.0)	76.9% (5.6)	<.001
Menstrual History
Amenorrhea ≥ 3m. n (%)	20 (62.5%)	33 (68.8%)	.63
Duration of amenorrhea (mo), mean (SD)	5.18 (7.22) [N=41]	6.34 (6.7) [N=51]	.42

^*%mBMI = percent median BMI