PICO format
Pronunciation: PEE-koh
Also written as: PICO — Patient/Population, Intervention, Comparison, Outcome
A structured framework for formulating clinical research questions using Patient/Population, Intervention, Comparison, and Outcome.
Full Definition
PICO format is a systematic approach to formulating answerable clinical questions in evidence-based practice, particularly useful in psychiatric research and clinical decision-making. The framework breaks questions into four components: Patient or Population (specific patient group or clinical scenario), Intervention (treatment, therapy, or exposure being considered), Comparison (alternative intervention or control condition), and Outcome (measurable result or effect of interest). In psychiatric medicine, PICO helps clinicians formulate precise questions about treatment efficacy, diagnostic accuracy, or prognosis. This structured approach improves literature search efficiency and helps identify relevant evidence for clinical decision-making.
Usage
Usage note: Capitalize as acronym. Sometimes extended to PICOT (adding Time frame).
In Context
- "The journal club required all clinical questions to be presented in PICO format to facilitate systematic literature review." — Research methodology training
- "Using PICO format, the team formulated: In adolescents with major depression, is CBT compared to medication more effective for achieving remission?" — Evidence-based practice meeting