The purpose of the study is to identify the barriers for effective treatment of depression, specifically whether modified CHIS Scale is a valid tool for identifying the high risk patients for depression.

Depression is a major illness that affects 10% of the population in a medical setting. It is often under diagnosed and under treated. It is an illness that can challenge a persons ability to perform even routine daily activities. Review of the charts of patients diagnosed with depression showed 80% of the patients do not have follow up appointments. We wondered if modified CHIS scale could identify the risk factors for medication non-adherence.

We hypothesised that modified CHIS Scale an effective tool ,for identifying the compliance of patients with the antidepressant medication.

We are conducting a retrospective cohort study at two of our residency based clinics by interviewing approximately 100 patients with CHIS Scale and PHQ9 Questionnaire on their office visits

Inclusion Criteria:

• Diagnosis of depression before April 15, 2009
• At least one visit since April 15, 2008
• Age 18+

Exclusion Criteria:

• None

Patients with the diagnosis of depression in theprimary care clinic