79
Microplastics found in every human testicle in study
(www.theguardian.com)
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this post was submitted on 22 May 2024
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(In a study of ~20 people)
With 23 of 23 samples, that’s a 78-100% 99% confidence interval (using an adjusted Wald method, which is good for small samples), so the sample size isn’t really an issue. The representativeness of the sample might be a concern, but for whatever the sample generalizes to, this is a high rate.