Table 2.
Distribution of PHQ-9 Scores According to Depression Diagnostic Status*
| Major Depressive Disorder (N = 41) | Other Depressive Disorder (N = 65) | No Depressive Disorder (N = 474) | |
|---|---|---|---|
| Level of Depression Severity, PHQ-9 Score | n (%) | n (%) | n (%) |
| Minimal, 0–4 | 1 (2.4) | 8 (12.3) | 348 (73.4) |
| Mild, 5–9 | 4 (9.8) | 23 (35.4) | 93 (19.6) |
| Moderate, 10–14 | 8 (19.5) | 17 (26.1) | 23 (4.9) |
| Moderately severe, 15–19 | 14 (34.1) | 14 (21.5) | 8 (1.7) |
| Severe, 20–27 | 14 (34.1) | 3 (4.6) | 2 (0.4) |
*
Depression diagnostic status was determined in 580 primary care patients by having a mental health professional who was blinded to the PHQ-9 score administer a structured psychiatric interview.