How does PICO method ask questions in evidence-based medicine, namely:

① Patients or people (patients or people).

② Intervention measures (such as diagnosis and treatment).

③ Other alternative measures (comparison).

④ Outcome, that is, the diagnosis and treatment effect of intervention measures.

PICO is a retrieval method of formatted information based on EBM theory. Short names for participants, interventions, comparisons and results.

PICO divides each question into four parts: participants, interventions, comparisons and results.

Here can refer to the object, intervention (treatment means, examination method), comparison (difference from other treatments or examinations) and prognosis (expected purpose) respectively. Providing more details will get more accurate search results and avoid information overload through accidental search.

References:

Baidu Encyclopedia-Weiwei