Monitoring Depression with PHQ-9 in Primary Care: Key Findings and Implications

Strategic Insights -

According to a recent report, primary care guidelines recommend the use of depression symptom questionnaires, such as the Patient Health Questionnaire (PHQ-9), to monitor depression in adults. A randomized controlled trial, PROMDEP, assessed the effectiveness and cost-effectiveness of using the PHQ-9 for monitoring depression. The study gathered qualitative evidence on the views and experiences of patients and practitioners and found that both groups valued the PHQ-9, but also reported limitations in its use. The findings suggest that the mixed trial results may be due to barriers in integrating the PHQ-9 into consultations, highlighting the need for further research.

Key Takeaways:

  • The PROMDEP trial assessed the effectiveness and cost-effectiveness of using the PHQ-9 for monitoring depression in primary care.
  • Patients and practitioners valued the PHQ-9, but reported limitations in its use, including difficulties in integrating it into consultations.
  • The study found that patients and practitioners valued the PHQ-9 for improving understanding of depression, impacting consultation and care, and integrating within current primary care processes.
  • Resistance to using the PHQ-9 in practice may be due to barriers that make it difficult for practitioners to integrate the PHQ-9 in consultations.
  • Further research is warranted to understand how the PHQ-9 can be successfully integrated into consultations.
  • The study involved 29 patients and 15 practitioners who took part in semi-structured telephone or video interviews.
  • The interview data were analyzed using thematic analysis.

Statistics:

  • 29 patients and 15 practitioners participated in the study.
  • Patients and practitioners both valued the PHQ-9.
  • The study found that patients and practitioners reported limitations in using the PHQ-9, including difficulties in integrating it into consultations.
  • The study suggests that resistance to using the PHQ-9 in practice may be due to barriers that make it difficult for practitioners to integrate the PHQ-9 in consultations.

Sources:

  • NewsRx. Reports from University of Southampton Advance Knowledge in Health and Medicine (Monitoring depression with the PHQ-9 in primary care: a qualitative study). Health & Medicine Week. October 24, 2025; p 4817.