P - Patient Population (age, gender, health, medications, access, conditions)
I - Intervention/Exposure
C - Comparison group
O - Outcome predicted
t - time frame
1. In adults with COPD (patient), does pulmonary rehabilitation (intervention) reduce the rate of COPD-related hospitalization (outcome)?
2. Is the use of intravenous magnesium sulfate (intervention) more effective than nebulized magnesium sulfate (comparison) for improving the pulmonary function (outcome) of children with acute asthma (patient)?
3. Does hand washing (intervention) among healthcare workers (population) reduce hospital acquired infections (problem)?