What do the statistical abbreviations HR, CI and P mean in clinical trial data?
For example,
adjusted HR, 1.08; 95% CI, 0.85–1.36; P =.526
What are HR, CI and P, and what are they referring to?
I have a vague idea that they refer to probabilities and confidence levels, but what exactly?
And what is “adjusted”?
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Answers
HR = Hazard Ratio—> how dangerous is the thing being tested
P = Probability
I think you may mean CI (not CL) – which is Confidence Interval
See this
and this
The Hazard Ratio is the chance of an event in one group compared with it’s likelihood in a second group. The regression model seeks to adjust for other factors which may influence results.
https://en.wikipedia.org/wiki/Hazard_ratio
@elbanditoroso Yes, it’s CI, not CL. In this font, an upper case I looks exactly the same as a lower case L. Unfortunately, in Fluther, I don’t think I have a choice of font, do I?
Anyway, back to my original question, and looking at my example, is it saying that there is a 52.6% probability that that the Hazard Ratio of 1.08 is within that 95% Confidence Interval (since 1.08 is within the range of 0.85 to 1.36? And why “adjusted”? What is being adjusted?
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