Parameters:
(1) number of patients who received a placebo (untreated)
(2) number of patients who were treated
(3) number of patients who received a placebo who improved
(4) number of patients who were treated who improved
percent of patients who received a placebeo or untreated who improved =
= (number of untreated who improved) / (total number untreated) * 100%
percent of patients who rwere treated who improved =
= (number of those treated who improved) / (total number treated) * 100%
relative risk for improvement =
= (percent of those treated who improved) / (percent of those untreated who improved)
Interpretation:
• A score < 1 indicates that the therapy may make things worse.
• A score around 1 indicates that the therapy is ineffective.
• A score > 1 indicates that the therapy may be effective, with confidence increasing with the value.
