@article{ref1,
title="Exploring survey methods for measuring consumption quantities of cannabis flower and concentrate products",
journal="American journal of drug and alcohol abuse encompassing all addictive disorders",
year="2023",
author="Borodovsky, Jacob T. and Struble, Cara A. and Habib, Mohammad I. and Hasin, Deborah S. and Shmulewitz, Dvora and Walsh, Claire and Livne, Ofir and Aharonovich, Efrat and Budney, Alan J.",
volume="ePub",
number="ePub",
pages="ePub-ePub",
abstract="BACKGROUND: Researchers need accurate measurements of cannabis consumption quantities to assess risks and benefits. Survey methods for measuring cannabis flower and concentrate quantities remain underdeveloped.<br><br>OBJECTIVE: We examined &quot;grams&quot; and &quot;hits&quot; units for measuring flower and concentrate quantities, and calculating milligrams of THC (mgTHC).<br><br>METHODS: Online survey participants (n = 2,381) reported preferred unit (hits or grams), past-week hits and grams for each product, and product %THC. Quantile regression compared mgTHC between unit-preference subgroups. Hits-based mgTHC calculations assumed a universal grams-per-hit ratio (GPHR). To examine individualized GPHRs, we tested a &quot;two-item approach,&quot; which divided total grams by total hits, and &quot;one-item approach,&quot; which divided 0.5 grams by responses to the question: &quot;How many total hits would it take you to finish 1/2 g of your [product] by [administration method]?&quot;Results: Participants were primarily daily consumers (77%), 50% female sex, mean age 39.0 (SD 16.4), 85% White, 49% employed full-time. Compared to those who preferred the hits unit, those who preferred the grams unit reported consuming more hits and grams, higher %THC products, and consequently, larger median mgTHC (flower-hits mgTHC: 32 vs. 91 (95%CI: 52-67); flower-grams mgTHC: 27 vs. 113 (95%CI: 73-95); concentrate-hits mgTHC: 29 vs. 59 (95%CI: 15-43); concentrate-grams mgTHC: 61 vs. 129 (95%CI: 43-94)). &quot;Two-item&quot; and &quot;one-item&quot; approach GPHRs were similar and frequently 50% larger or smaller than the universal GPHR.<br><br>CONCLUSION: Allowing respondents to choose &quot;hits&quot; or &quot;grams&quot; when reporting cannabis quantities does not compromise mgTHC estimates. A low-burden, one-item approach yields individualized &quot;hit sizes&quot; that may improve mgTHC estimates.<p /> <p>Language: en</p>",
language="en",
issn="0095-2990",
doi="10.1080/00952990.2023.2246635",
url="http://dx.doi.org/10.1080/00952990.2023.2246635"
}