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Study

Psychedelic Trial Participants Are Overwhelmingly White

Psychedelic Trial Participants Are Overwhelmingly White

Psilocybin mushrooms

What they found

Across nine psychedelic trials, 87.2% of participants were white.

Across nine psychedelic trials, 87.2% of participants were white.

The number

87.2% of participants were white

How solid is it?

Review

Review

Meta-analysis/systematic review

Meta-analysis/systematic review

Evidence ladder: Lab dish → Animal → Early human → Strong human. Reviews summarize earlier research.

At a glance

Latin name

Compound

psilocybin, LSD

psilocybin, LSD

Sample size

nine psychedelic trials

nine psychedelic trials

Published in

Journal of Psychopharmacology

Journal of Psychopharmacology

Covered in Shroom Scan

Section

PSILOCYBIN & LEGISLATION

PSILOCYBIN & LEGISLATION

As it ran in Shroom Scan

Representation Gap

Representation Gap

A review of nine psychedelic trials (8 psilocybin, 1 LSD) found that 87.2% of participants were white, while Black and Asian individuals made up only 3.0% and 5.0%, respectively. In U.S.-only trials, participation-to-population ratios confirmed the underrepresentation of Black (PPR = 0.317) and Asian (PPR = 0.799) participants. Only 47.7% were women, and just 13.4% of reported participants were Hispanic or Latino. efficacy.

A review of nine psychedelic trials (8 psilocybin, 1 LSD) found that 87.2% of participants were white, while Black and Asian individuals made up only 3.0% and 5.0%, respectively. In U.S.-only trials, participation-to-population ratios confirmed the underrepresentation of Black (PPR = 0.317) and Asian (PPR = 0.799) participants. Only 47.7% were women, and just 13.4% of reported participants were Hispanic or Latino. efficacy.

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