Table 6.

Logistic regression: predictors of hospitalization (dependent variable, backward selection).

		Coefficent	Standard error	P	Exp(B)	Nagelkerkes R2	Hosmer-Lemeshow test
Step 1	Age	−0.014	0.007	0.051	0.986	0.073	0.708
	Sex	−0.283	0.204	0.165	0.753
	Disease duration	−0.437	0.275	0.112	0.646
	BSQ1	0.061	0.020	0.003	1.063
	HADS Anxiety	−0.093	0.036	0.010	0.911
	HADS Depression	0.070	0.033	0.033	1.072
	ACQ	−0.002	0.021	0.921	0.998
	Constant	1.332	0.786	0.090	3.788
Step 2	Age	−0.014	0.007	0.051	0.986	0.073	0.616
	Sex	−0.283	0.204	0.165	0.754
	Disease duration	−0.439	0.274	0.110	0.645
	BSQ1	0.060	0.019	0.002	1.062
	HADS Anxiety	−0.094	0.034	0.006	0.910
	HADS Depression	0.069	0.032	0.033	1.072
	Constant	1.304	0.735	0.076	3.685
Step 3	Age	−0.014	0.007	0.054	0.986	0.067	0.977
	Disease duration	−0.444	0.274	0.105	0.642
	BSQ1	0.061	0.019	0.002	1.063
	HADS Anxiety	−0.089	0.034	0.009	0.915
	HADS Depression	0.067	0.032	0.038	1.069
	Constant	0.871	0.662	0.188	2.388
Step 4	Age	−0.015	0.007	0.030	0.985	0.060	0.732
	BSQ1	0.061	0.019	0.002	1.062
	HADS Anxiety	−0.092	0.034	0.007	0.912
	HADS Depression	0.070	0.032	0.030	1.073
	Constant	0.139	0.482	0.773	1.149

BSQ, Body Sensations Questionnaire; ACQ, Agoraphobic Cognitions Questionnaire; HADS, Hospital Anxiety and Depression Scale. Disease duration (1 = <6 months, 2 = >6 months).