Table 2.

Response to treatment in short-term and long-term ill patients with anorexia nervosa.

	Long-term ill		Short-term ill		Sig
Treatment (n = 191)
N	117		74
	Mean	SD	Mean	SD
Inpatient length of stay, days	34.99	23.72	27.14	19.69	0.018
Total program length of stay, days	59.68	33.29	52.57	29.83	0.136
Rate of weight gain, kg/wk	2.02	1.00	1.98	0.69	0.752
Final program discharge BMIa	20.06	1.93	19.93	1.69	0.648
	%		%
Discharge BMIa ≥ 18	88.03		89.19		0.808
Discharge BMIa ≥ 19	81.20		77.03		0.486
Discharge BMIa ≥ 20	64.10		60.81		0.647
6-month follow-up (n = 99)
N	63		36
	%		%
Response rate to follow-up questionnaire	53.85		48.65		0.484
6-month follow-up BMIa ≥ 18	68.25		58.33		0.321
6-month follow-up BMIa ≥ 19	58.73		52.78		0.565
6-month follow-up BMIa ≥ 20	33.33		36.11		0.779
Rehospitalized within 6 months	20.63		30.56		0.268

^aBMI = body mass index, kg/m².