In the evidence based practice process, when one uses the PICO format, what does the C in PICO stands for or represents?
Show Hint
- Subject's health characteristics, age, lifestyle
- Giving no intervention to a set of subjects
- Giving intervention to a set of subject
- Blood pressure measurement in hypertensives in a BP lowering effect of exercise study
The Correct Option is B
Solution and Explanation
PICO is a framework used in Evidence-Based Practice (EBP) to formulate clinical research questions. It helps in structuring and identifying relevant evidence efficiently. The components of PICO are:
• P = Patient/Population/Problem
• I = Intervention
• C = Comparison (or Control)
• O = Outcome
Step 1: Understanding the role of 'C'.
The letter C in PICO refers to:
• A comparison group
• A control group
• An alternative intervention or no intervention
Step 2: Interpretation of comparison group.
In clinical studies:
• One group receives the intervention
• The other group (comparison group) may:
• Receive no treatment
• Receive placebo
• Receive standard care
Step 3: Evaluating options.
• Option (1) → describes population
• Option (2) → describes control/comparison group (correct)
• Option (3) → describes intervention
• Option (4) → describes outcome
Step 4: Conclusion.
Thus, the correct meaning of 'C' is: \[ \boxed{\text{Comparison group (no intervention or alternative)}} \]
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