> The most pronounced associated differences were observed with intake of approximately 2 to 3 cups per day of caffeinated coffee or 1 to 2 cups per day of tea.
Weird, tea is supposed to have half the caffeine of coffee.
> higher caffeinated coffee intake was significantly associated with lower dementia risk (141 vs 330 cases per 100 000 person-years comparing the fourth [highest] quartile of consumption with the first [lowest] quartile; hazard ratio, 0.82 [95% CI, 0.76 to 0.89])
> The most pronounced associated differences were observed with intake of approximately 2 to 3 cups per day of caffeinated coffee or 1 to 2 cups per day of tea.
Weird, tea is supposed to have half the caffeine of coffee.
Both coffee and tea have thousands of other constituent parts which could play a role.
The decaffeination process also removes more parts than just the caffeine.
> higher caffeinated coffee intake was significantly associated with lower dementia risk (141 vs 330 cases per 100 000 person-years comparing the fourth [highest] quartile of consumption with the first [lowest] quartile; hazard ratio, 0.82 [95% CI, 0.76 to 0.89])
That's a very big difference.
So a 100% reduction in risk? Or is it 50% reduction in risk.