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Stroke and transient ischaemic attack - Evidence
CI (confidence interval)
A confidence interval is a measure of the uncertainty around the main finding of a statistical analysis:
- The estimate of an outcome measure is usually presented as a point estimate and a 95% confidence interval.
- The 95% confidence interval indicates, 95% of the time, the range within which the true value of the outcome measure lies — wider intervals indicate lower precision; narrow intervals indicate greater precision.
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