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Table 1 Study variables

From: Assessment of an enhanced program for depression management in primary care: a cluster randomized controlled trial. The INDI project (Interventions for Depression Improvement)

Instrument

Assessment area

Applied by

Time(s) of assessments

Sampling form

Age, sex, inclusion/exclusion criteria

Primary care physicians

Baseline

Sociodemographic data form

Age, sex, marital status, educational level, labour status, social class

Research interviewer by means of telephonic interview

Baseline

Duke Severity of Illness Checklist (DUSOI)

Global severity of physical comorbidity

Primary care physicians

Baseline

PRIME-MD; dysthymia and anxiety modules

Common psychiatric comorbidity

Primary care physicians

Baseline

Patient Health Questionnaire (PHQ-9)

Severity of depressive symptoms, remission and response rates

Research interviewer by means of telephone interview

Baseline, 3, 6 and 12 months

Questionnaire

Length of evolution of current depressive episode and previous history of depression.

Research interviewer by means of telephone interview

Baseline

SF-12 Health Survey

Health-related quality of life: mental health and physical health scores

Research interviewer by means of telephone interview

Baseline, 3, 6 and 12 months

Morisky-Green Test

Treatment adherence

Research interviewer by means of telephone interview

Baseline, 3, 6 and 12 months

Use of health resources questionnaire

Number of primary care, psychiatric and emergency visits, and hospitalisations owing to mental health problems

Research interviewer by means of telephone interview

3, 6 and 12 months

Satisfaction with the care received

Satisfaction of the patient with the clinical care got for his depression

Research interviewer by means of telephone interview

3, 6 and 12 months

Exploration of the computer database of pharmaceutical prescription and invoicing

Treatment with antidepressants. Medical prescription and consumption by the patient.

Research assistant

3, 6 and 12 months