Table 1.

Clinical and Demographic Characteristics of Patients With Major Depressive Disorder (N = 1150)

Characteristic	Total N	N	%
Gender
Proportion of females	1138	856	75.2
Proportion of males	1138	282	24.8
Current use of medications
Taking at least 1 medication	1150	908	79.0
Analgesics/anti-inflammatory	1150	616	53.6
Antipsychotics	1150	23	2.0
Benzodiazepines	1149	518	45.1
Antidepressants	1150	356	31.0
Concomitant prevalent diagnoses
Osteoarthritis	1150	488	42.4
Hypertension or cardiac disease	1150	366	31.8
Dyslipidemia	1150	267	23.2
Diabetes	1150	105	9.1
Allergy	1150	93	8.1
Gastric or duodenal ulcer	1150	85	7.4
Chronic pulmonary diseases	1150	71	6.2
Cancer	1150	31	2.7
Severity of depression (SDS)
None/unimportant	1049	42	4.0
Mild	1049	185	17.6
Moderate/marked	1049	355	33.8
Severe/extreme	1049	467	44.5
Somatic symptoms not fully explained by an organic origin (at least 1 of these symptoms present)	1026	954	93.0
Any pain (regardless of etiology)	1131	967	85.5
Any cardiopulmonary (regardless of etiology)	1131	912	80.6
Any gastrointestinal (regardless of etiology)	1131	785	69.4
Any pseudoneurologic (conversion) (regardless of etiology)	1131	726	64.2
Hospitalized within the last 12 months	1145	181	15.8
Consulted with a physician within the prior 2 weeks	1148	579	50.4
	Total N	Mean	SD
Age, y	1112	55.0	15.4
No. of somatic symptoms regardless of their etiology	1132	8.1	4.7
Health-related quality of life (SF-12)
Physical component score	1108	39.4	10.5
Mental component score	1108	29.0	9.3

Abbreviations: SDS = Zung Self-Rating Depression Scale, SF-12 = Medical Outcomes Study 12-item Short-Form Health Survey