Table 3. Significant linear time trends of longitudinal regressions during inpatient treatment.

	treatment phase	number of patients	Model 1		measurements per patient	Model 2		measurement per patient
			BMI = time		mean (SD)	Leptin = BMI		mean (SD)
			slope	p-value		slope	p-value
HSS	I: BMI<16	11	+0.12	< .0001	19.55 (15.10)	+0.32	0.0543	9.91 (7.41)
	II: BMI≥16	9	+0.10	< .0001	13.44 (11.08)	+1.63	0.0002	7.11 (5.53)
LSS	II: BMI≥16	9	+0.05	0.0038	16.44 (5.41)	+1.93	0.0036	8.00 (2.18)

HSS = patient group with high symptom severity; LSS = patient group with less severe symptoms

Treatment phases were chosen according to the DSM-V specification of AN severity (see details in text).

Model 1 / Model 2 specify the longitudinal regression model.

Significant slopes are printed in bold, trend-level significant slopes in italic.