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Effect of randomization to aspirin on dementia and cognitive function. Box sizes for the rate ratios are proportional to the amount of statistical information. aFifty-three individuals (26 on aspirin, 27 on placebo) are censored due to the broad dementia outcome before randomization. bCognitive z-score difference is adjusted for age at test and sex. The axis reversed to maintain the direction of ‘favours aspirin’ to the left.
