That's the central measure of 338 fewer words per day, but the 95% confidence interval was 25–652 fewer words.
replyhttps://journals.sagepub.com/doi/10.1177/17456916261425131
There is an interview with the authors here:
https://phys.org/news/2026-04-people-spoken-words-year-years...
I should add, 338 fewer words per day per year, cumulatively 28% fewer. It's a little clumsily written.
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