Table 2. Mismatch between PHQ-9 symptom questionnaire scores and psychiatric diagnoses.
Severity on PHQ-9, = 2642Depressed on DSM IV, N = 583 (% all patient)Not depressed on DSM IV, = 2059 (% all patient)
Mild 5–9156 (6)402 (15.2)
Moderate 10–14102 (3.9)102 (3.9)
Moderate-severe 15–1966 (2.5)24 (0.9)
Severe 20–2737 (1.4)10 (0.4)