RE:RE:RE:RE:RE:RE:RE:It's on Twitter... ASCO ResultsCorrection - Yes Confidence Interval (CI)
A Standard Incidence Ratio (SIR) is an estimate of the occurrence of cancer in a population relative to what might be expected if the population had the same cancer experience as some larger comparison population designated as “normal” or average.
A 95% Confidence Interval (CI) assesses the magnitude and stability of an SIR. Specifically, a 95% CI is the range of estimated SIR values that has a 95% probability of including the true SIR for the population. If the 95% CI range does not include the value 100, then the study population is significantly different from the comparison or “normal” population. “Significantly different” means there is less than 5% percent chance that the observed difference is the result of random fluctuation in the number of observed cancer cases.