Page 78 - ESHRE2019

Is the risk of bias...
Not serious Serious Very Serious
...enough that my confidence in the result is
Imprecision
•Confidence intervals
– does interpretation of the confidence interval allow contradictory conclusions?
• i.e. both no effect and an appreciable benefit or harm
•Sample size and number of events (if no meta-analysis)
– a sample size sufficient for one adequately powered study – depends on effect size and event rates
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