🧠 PHQ-9 (depresión)
UsoCuándo usar: screening and monitoring depressive symptoms in appropriate clinical settings.
EstratificaciónTotals guide severity and follow-up intensity; diagnosis still requires clinical interview.
LímitesCuándo no usar: as the sole diagnostic test, or without a safety plan… · Error frecuente: ignoring medical mimics and bipolar screening. · Any item-9 positivity → immediate safety assessment.
Fuente《中国抑郁障碍防治指南》 / mental-health pathways on zh pages
Siguientes pasos del turno
Tras puntuar: escena, escalas afines y vía. Solo referencia local — sin escritura HIS.
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Metodología · ejemplo, guías y notas completas
Public-domain instrument (Kroenke).
Cuándo usarla
Cuándo usar: screening and monitoring depressive symptoms in appropriate clinical settings.
Cómo funciona
Nine items scored 0–3; total 0–27. Bands: 0–4 none–minimal, 5–9 mild, 10–14 moderate, 15–19 moderately severe, 20–27 severe.
Puntos clave
- Public-domain instrument (Kroenke).
- Item 9 overrides numeric band for urgency.
- Siguiente: PHQ-2 screen upstream; safety pathway; treatment monitoring.
Referencias
- [Guía / fuente principal]《中国抑郁障碍防治指南》 / mental-health pathways on zh pages
- Kroenke K, Spitzer RL, Williams JB. J Gen Intern Med 2001 (PHQ-9)
Nota de la herramienta
Kroenke et al. J Gen Intern Med 2001. PHQ-9 is public domain.
Cálculo de ejemplo
Los valores siguientes proceden de los ejemplos definidos en la propia herramienta y se calculan en el servidor con la fórmula de esta página, para poder verificar la operación rápidamente. Solo ilustra cómo sustituir los valores: no es consejo clínico ni un caso real.
| Little interest or pleasure in doing things | Several days (1) |
|---|---|
| Feeling down, depressed, or hopeless | Several days (1) |
| Trouble falling/staying asleep, or sleeping too much | Several days (1) |
| Feeling tired or having little energy | Several days (1) |
| Poor appetite or overeating | Several days (1) |
| Feeling bad about yourself — or that you are a failure | Several days (1) |
| Trouble concentrating on things | Several days (1) |
| Moving or speaking slowly / being fidgety or restless | Several days (1) |
| Thoughts that you would be better off dead, or of hurting yourself | Several days (1) |
→PHQ-99/27
- Severity band：Mild (5–9)
- Item 9 (self-harm thoughts)：Positive — perform safety assessment now
| Little interest or pleasure in doing things | Not at all (0) |
|---|---|
| Feeling down, depressed, or hopeless | Not at all (0) |
| Trouble falling/staying asleep, or sleeping too much | Not at all (0) |
| Feeling tired or having little energy | Not at all (0) |
| Poor appetite or overeating | Not at all (0) |
| Feeling bad about yourself — or that you are a failure | Not at all (0) |
| Trouble concentrating on things | Not at all (0) |
| Moving or speaking slowly / being fidgety or restless | Not at all (0) |
| Thoughts that you would be better off dead, or of hurting yourself | Not at all (0) |
→PHQ-90/27
- Severity band：None–minimal (0–4)
- Item 9 (self-harm thoughts)：0 — still screen clinically if concern
Verificación y fuentes · gobernanza
Preguntas frecuentes
Preguntas frecuentes
- ¿PHQ-9 (depresión) sube datos del paciente? ¿Dónde se calcula?
- El cálculo se realiza localmente en el navegador; no se suben datos. Solo para profesionales sanitarios; interprete con historia, pruebas y protocolos locales — no es diagnóstico ni prescripción.
- ¿Cómo se calcula PHQ-9 (depresión) en la práctica? ¿Puede mostrar un ejemplo resuelto?
- Datos: Little interest or pleasure in doing things Several days (1), Feeling down, depressed, or hopeless Several days (1), Trouble falling/staying asleep, or sleeping too much Several days (1), Feeling tired or having little energy Several days (1), Poor appetite or overeating Several days (1), Feeling bad about yourself — or that you are a failure Several days (1), Trouble concentrating on things Several days (1), Moving or speaking slowly / being fidgety or restless Several days (1)… → Resultado: PHQ-9 9 /27（Severity band: Mild (5–9), Item 9 (self-harm thoughts): Positive — perform safety assessment now） Datos: Little interest or pleasure in doing things Not at all (0), Feeling down, depressed, or hopeless Not at all (0), Trouble falling/staying asleep, or sleeping too much Not at all (0), Feeling tired or having little energy Not at all (0), Poor appetite or overeating Not at all (0), Feeling bad about yourself — or that you are a failure Not at all (0), Trouble concentrating on things Not at all (0), Moving or speaking slowly / being fidgety or restless Not at all (0)… → Resultado: PHQ-9 0 /27（Severity band: None–minimal (0–4), Item 9 (self-harm thoughts): 0 — still screen clinically if concern）