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The question
In the journal club at a medical college in Kochi, residents read a meta-analysis of five randomised trials on a drug to prevent recurrent stroke; the outcome is stroke within two years. The main result is reproduced in the figure. Consider these statements: 1. The pooled result is statistically significant. 2. Trial C is significant on its own. 3. Trial E carries the most weight. 4. A marker left of the vertical line favours the drug. Which statements are correct?
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