Table 2.

Amount of annual treatment sessions used by patients with personality disorders and those with major depressive disorder

	Months 1-12 (N=633)		Months 13-24 (N=605)		Months 25-36 (N=578)
Variable	Mean	SD	Mean	SD	Mean	SD	ORa	95% CI	P
Individual therapy sessions
Schizotypal	19.98	24.64	14.38	20.16	14.96	28.58	1.19	.79-1.76	.420
Borderline	27.72	30.95	25.88	29.72	25.00	35.07	1.93	1.36-2.72	<.001
Avoidant	21.11	24.95	18.05	24.39	12.15	17.54	1.39	.98-1.95	.066
Obsessive-compulsive	24.91	29.48	19.86	24.47	17.38	27.27	1.82	1.28-2.61	<.001
Major depressive	15.53	23.50	9.28	18.19	8.36	16.32	1.00	—
Medication consultations
Schizotypal	3.67	5.29	9.40	41.43	4.07	5.21	1.07	.77-1.95	.815
Borderline	5.59	7.76	7.65	13.18	6.57	9.12	1.35	.90-2.03	.147
Avoidant	3.79	6.20	4.16	8.06	3.41	4.88	.89	.60-1.31	.550
Obsessive-compulsive	3.16	4.82	2.64	4.27	2.14	3.44	.75	.52-1.08	.123
Major depressive	5.07	11.86	3.26	5.68	2.94	4.63	1.00	—
Emergency department visits
Schizotypal	.21	.75	.25	.72	.24	.73	1.43	.59-3.42	.427
Borderline	.72	1.68	.52	1.10	.35	.94	3.19	1.43-7.09	.005
Avoidant	.13	.51	.11	.48	.12	.53	.94	.41-2.18	.891
Obsessive-compulsive	.03	.18	.01	.12	.05	.25	.33	.13-.83	.018
Major depressive	.08	.37	.13	.43	.15	.72	1.00	—
Hospitalizations
Schizotypal	.18	.49	.16	.54	.18	.51	1.51	.69-3.29	.300
Borderline	.56	1.16	.56	1.04	.37	.86	4.48	2.29-9.78	<.001
Avoidant	.13	.56	.15	.54	.10	.45	1.42	.68-2.97	.352
Obsessive-compulsive	.08	.41	.05	.26	.06	.26	.86	.40-1.88	.709
Major depressive	.08	.37	.08	.31	.13	.51	1.00	—
Days hospitalized
Schizotypal	1.49	6.96	1.59	7.42	1.63	4.85	1.19	.41-3.42	.741
Borderline	6.32	18.94	7.34	20.36	4.38	13.48	4.81	1.97-11.7	<.001
Avoidant	1.51	6.82	1.71	7.68	1.59	9.36	1.54	.59-4.01	.371
Obsessive-compulsive	.72	4.04	.39	2.11	.83	4.28	.79	.29-2.09	.622
Major depressive	.95	5.68	1.06	6.34	1.61	9.61	1.00	—

^aComparison between patients with major depressive disorder and those with personality disorders