Objective: This study analyzes effectiveness of screening, referrals, and treatment uptake of a collaborative care for depression intervention across 10 primary care clinics in Chicago.Methods: Patients were screened with the PHQ-2/9 based on an eligibility algorithm. Electronic health record data were analyzed for sample characteristics, screening rates, referrals, and treatment pathways. To identify disparities, a test of proportions was conducted between eligible and screened patients and referred and treated patients.Results: From November 2016 -December 2017, 25,369 patients were eligible for screening, and rates rose to 79%, versus 7% in the prior year. Screenings, referrals, and uptake occurred proportionately across subgroups except for patients ages 12-17. Adolescent age was associated with disproportionate PHQ-9 screenings and with treatment disengagement.
Conclusion:The intervention shows promise in expanding access to care and reducing disparities. Greater access to psychotherapies and innovative treatment modalities, particularly for adolescents, may improve overall treatment uptake.