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The statistic is relative: "a 53% increase" is relative to some baseline. It does not mean the absolute risk is raised to 53%. Without context these relative f
by tomxor 5y ago
The statistic is relative: "a 53% increase" is relative to some baseline. It does not mean the absolute risk is raised to 53%.
Without context these relative form are meaningless, and they are presented this way annoyingly commonly by media. For example if the baseline absolute risk is 0.0100% then the study suggests the increase would raise that to 0.0153% in absolute terms... and no I do not know what the baseline is, the headline is truly meaningless to me.
- tommiegannert 5y agoFigure 2 of the study says the ">6 cups/day" cohort had 123 of 9,265 dementia cases (1.3%). The "1-2 cups/day" reference group had 953 of 123,516 dementia cases (0.77%).
- tomxor 5y agohah, so my exaggerated example was only 1 order of magnitude off.