Biostatistics & Research · single question
A PICO study asks about fluoride varnish — what does the 'I' in PICO represent?
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Correct answer: A. Intervention
- A. PICO is the clinical research framework: P = Patient/Problem/Population, I = INTERVENTION (the treatment/exposure being studied), C = Comparison (control group), O = Outcome. In a study about fluoride varnish, the INTERVENTION (I) is FLUORIDE VARNISH — it is the treatment being evaluated.
- B. Incisors might be the population in a dental study — but 'I' in PICO always = INTERVENTION.
- C. Incidence is a statistical measure — it is NOT what 'I' stands for in PICO.
- D. Indication is the clinical indication for a treatment — not the PICO 'I'.
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