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. Author manuscript; available in PMC: 2021 Jan 7.
Published in final edited form as: Hum Psychopharmacol. 2020 Jan 7;35(1):e2719. doi: 10.1002/hup.2719

TABLE 1.

Participant characteristics (n = 39)

Participant characteristic n %
Age M = 26.9 (SD = 5.3) Range = 18–38
Sex
 Male 29 75.4
 Female 10 25.6
Race/ethnicity
 White 34 87.2
 Black 1 2.6
 Hispanic 2 5.1
 Other 2 5.1
Country
 United States 33 84.6
 Canada 2 5.1
 Mexico 1 2.6
 Netherlands 1 2.6
 Poland 1 2.6
 Portugal 1 2.6
Where recruited
 Participant referral 17 44.7
 Harm reduction or drug conference 9 23.7
 Social media 7 18.4
 Investigator-initiated email 5 13.2
 Dance party 1 2.6

Abbreviations: M, mean; SD = standard deviation.