Table 3.

Predictors of time-to-readmission in anorexia nervosa.

	Uncorrected model			Model 1			Model 2
	Wald's test	p	Hazard ratio (95% CI)	Wald's test	p	Hazard ratio (95% CI)	Wald's test	p	Hazard ratio (95% CI)
H1 baseline variables
Young age vs. old age	0.7	0.4	1.2 (0.7–2)
Long vs. short duration of illness	4	0.045	0.6 (0.4–0.9)	1.9	0.167	0.55 (0.2–1.3)
High DT vs. low DT	4.8	0.028	1.9 (1.1–3.4)	4.2	0.043	4.2 (1.1–16.4)	4.1*	0.045*	4.4* (1.1–18.5)
High B vs. low B	1.5	0.226	1.4 (0.8–2.5)
High DT vs. low DT	0.25	0.615	1.1 (0.7–1.9)
Low BMI vs. high BMI	2.3	0.13	0.67 (0.4–1.1)
High BDI vs. low BDI	0.24	0.87	1 (0.6–1.9)
High STAI-S vs. low STAI-S	0.58	0.44	1.2 (0.7–2)
High BSQ vs. low BSQ	2.3	0.13	1.6 (0.9–2.8)
H1 outcome variable
Low ΔBMI vs. high ΔBMI	5.6	0.018	1.9(1.1–3.3)	5.3	0.021	2.3 (1.1–4.4)	3.8#	0.5#	2#(0.9–4)

H1, baseline hospitalization; DT, Drive for thinness; BMI, Body Mass Index; BDI, Beck depression Inventory; STAI-S, State-Trait Anxiety Inventory-State; BSQ, Body Shape Questionnaire.

Model 1: Corrected model for age, duration of illness, EDI-2 subscales bulimia and body dissatisfaction, STAI-S, BSQ, and BDI.

Model 2: Corrected model for age, duration of illness, EDI-2 subscales bulimia and body dissatisfaction, STAI-S, BSQ, and BDI, and DT or ΔBMI.

^*Model 2 corrected also for ΔBMI.

^#Model 2 corrected also for DT. Bold values mean p < 0.05.