Assessing self-reported use of new psychoactive substances: The impact of gate questions

Joseph J. Palamar, Patricia Acosta, Fermín Fernández Calderón, Scott Sherman, Charles M. Cleland

Research output: Contribution to journalArticle

Abstract

Background: New psychoactive substances (NPS) continue to emerge; however, few surveys of substance use ask about NPS use. Research is needed to determine how to most effectively query use of NPS and other uncommon drugs. Objective: To determine whether prevalence of self-reported lifetime and past-year use differs depending on whether or not queries about NPS use are preceded by “gate questions.” Gate questions utilize skip-logic, such that only a “yes” response to the use of specific drug class is followed by more extensive queries of drug use in that drug class. Methods: We surveyed 1,048 nightclub and dance festival attendees (42.6% female) entering randomly selected venues in New York City in 2016. Participants were randomized to gate vs. no gate question before each drug category. Analyses focus on eight categories classifying 145 compounds: NBOMe, 2C, DOx, “bath salts” (synthetic cathinones), other stimulants, tryptamines, dissociatives, and non-phenethylamine psychedelics. Participants, however, were asked about specific “bath salts” regardless of their response to the gate question to test reliability. We examined whether prevalence of use of each category differed by gate condition and whether gate effects were moderated by participant demographics. Results: Prevalence of use of DOx, other stimulants, and non-phenethylamine psychedelics was higher without a gate question. Gate effects for other stimulants and non-phenethylamine psychedelics were larger among white participants and those attending parties less frequently. Almost one in ten (9.3%) participants reporting no “bath salt” use via the gate question later reported use of a “bath salt” such as mephedrone, methedrone, or methylone. Conclusion: Omitting gate questions may improve accuracy of data collected via self-report.

Original languageEnglish (US)
Pages (from-to)609-617
Number of pages9
JournalAmerican Journal of Drug and Alcohol Abuse
Volume43
Issue number5
DOIs
StatePublished - Sep 3 2017

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Hallucinogens
Baths
Salts
Pharmaceutical Preparations
Tryptamines
Holidays
Self Report
Demography
Research

Keywords

  • New psychoactive substances
  • nightclub party attendees
  • survey methodology
  • synthetic cathinones

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Clinical Psychology
  • Psychiatry and Mental health

Cite this

Assessing self-reported use of new psychoactive substances : The impact of gate questions. / Palamar, Joseph J.; Acosta, Patricia; Calderón, Fermín Fernández; Sherman, Scott; Cleland, Charles M.

In: American Journal of Drug and Alcohol Abuse, Vol. 43, No. 5, 03.09.2017, p. 609-617.

Research output: Contribution to journalArticle

Palamar, Joseph J. ; Acosta, Patricia ; Calderón, Fermín Fernández ; Sherman, Scott ; Cleland, Charles M. / Assessing self-reported use of new psychoactive substances : The impact of gate questions. In: American Journal of Drug and Alcohol Abuse. 2017 ; Vol. 43, No. 5. pp. 609-617.
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abstract = "Background: New psychoactive substances (NPS) continue to emerge; however, few surveys of substance use ask about NPS use. Research is needed to determine how to most effectively query use of NPS and other uncommon drugs. Objective: To determine whether prevalence of self-reported lifetime and past-year use differs depending on whether or not queries about NPS use are preceded by “gate questions.” Gate questions utilize skip-logic, such that only a “yes” response to the use of specific drug class is followed by more extensive queries of drug use in that drug class. Methods: We surveyed 1,048 nightclub and dance festival attendees (42.6{\%} female) entering randomly selected venues in New York City in 2016. Participants were randomized to gate vs. no gate question before each drug category. Analyses focus on eight categories classifying 145 compounds: NBOMe, 2C, DOx, “bath salts” (synthetic cathinones), other stimulants, tryptamines, dissociatives, and non-phenethylamine psychedelics. Participants, however, were asked about specific “bath salts” regardless of their response to the gate question to test reliability. We examined whether prevalence of use of each category differed by gate condition and whether gate effects were moderated by participant demographics. Results: Prevalence of use of DOx, other stimulants, and non-phenethylamine psychedelics was higher without a gate question. Gate effects for other stimulants and non-phenethylamine psychedelics were larger among white participants and those attending parties less frequently. Almost one in ten (9.3{\%}) participants reporting no “bath salt” use via the gate question later reported use of a “bath salt” such as mephedrone, methedrone, or methylone. Conclusion: Omitting gate questions may improve accuracy of data collected via self-report.",
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