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Figure 3 Determination of probabilities from the posterior distribution in Figure 2. The solid area within the "clinically unimportant" null interval for log odds ratio (OR) (ranging from +0.05 to –0.05) represents 34% of the total area under the distribution, and the probability that the log OR lies within this null interval is therefore 0.34. Similarly, the solid area with a log OR <–0.1 (equivalent to >10% improvement in outcome) represents 21% of the total area, and the probability that the log OR is <–0.1 is therefore 0.21.
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