The inventory to diagnose depression (IDD) in primary care patients.

Major depressive disorder (MDD) is highly prevalent in ambulatory primary care patients. Severe functional impairment and risk of suicide are features of the condition. Although treatment can reduce morbidity, detection of MDD by primary care physicians is suboptimal. The aim of this study is to assess the inventory to diagnose depression (IDD) as compared with clinical psychiatric assessment for case finding in primary care patients. Adult members of an Israeli kibbutz (communal settlement), where all psychiatric diagnoses made by the family physician are confirmed by psychiatric consultation, were asked to complete the IDD; a 22 question, self-administered questionnaire. Patients whose scores indicated MDD, if not previously diagnosed, were also referred to psychiatrists. Patients' medical charts were reviewed for the diagnosis of MDD and response to therapy prior to the administration of the IDD. Of the sample of 312 patients, 207 (66.3%) completed the IDD. Refusers were younger (P = 0.04), more likely to be native born Israelis (P = 0.02), and had a higher prevalence of known MDD (P = 0.05) than participants. MDD by IDD scores was present in seven patients, in three of whom the diagnosis had previously been established; the other four were newly diagnosed. In the three previously diagnosed patients, one (metastatic carcinoma) refused treatment and two were receiving psychotherapy; all were clinically depressed. Four additional previously diagnosed patients whose IDD scores were insufficient for MDD had had a successful response to current therapy.(ABSTRACT TRUNCATED AT 250 WORDS)