Evidence map›Paper›PMID 35788247›Full record

ArticleJournal of cannabis research2022

Characteristics of the Washington cannabis market from 2014 to 2016.

William C Kerr, Yu Ye

Abstract read
In one paragraph

Article in Journal of cannabis research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Article
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors.

William C KerrAlcohol Research Group, Public Health Institute, 6001 Shellmound Ave, Suite 450, Emeryville, CA, 94608, USA. wkerr@arg.org.
Yu YeAlcohol Research Group, Public Health Institute, 6001 Shellmound Ave, Suite 450, Emeryville, CA, 94608, USA.

Funding

Effects of Spirits Privatization on Alcohol Prices and Alcohol-related HarmsR01AA021742 · NIAAA · PUBLIC HEALTH INSTITUTE · PI KERR, WILLIAM C. · 2013 to 2017
$3.0M
Impacts of Recreational Marijuana Legalization and Retail Outlets in Washington: Unique Perspectives from Survey and County Mortality DataR01DA048526 · NIDA · PUBLIC HEALTH INSTITUTE · PI KERR, WILLIAM C. · 2019 to 2022
$2.0M
NIAAA NIH HHS R01 AA021742NIDA NIH HHS R01 DA048526
6 · The paper itself

Abstract

backgroundThe state of Washington legalized cannabis for adult use in 2012 and retail stores began to open in 2014. While details of the legal market have been tracked by the state, the total market for cannabis and characteristics of purchasers can only be identified through surveys.

methodsSix cross-sectional samples of the Privatization of Spirits in Washington (PSW) surveys were collected between January 2014 and October 2016 with two in each year. Random digit dial procedures were used to recruit a sample aged 18 and older, with 40% of cases from mobile phones. A total of 5492 respondents participated. Analyses of the population-weighted sample utilized purchasing amounts and frequencies, use frequency and related measures to estimate total and mean amounts and expenditures. Sensitivity analyses were conducted for key assumptions.

resultsThe market for cannabis flower is estimated to have increased from 158 metric tons and $1.23 billion in 2014 to 222 metric tons and $1.7 billion in 2016, with little change from 2014 to 2015. Purchases from legal sources, retail and dispensaries, were estimated at 69% of the total market. Daily or near daily (DND) users accounted for about 83% of sales in 2014, rising to 91% in 2016. The prevalence of past year use rose substantially from 25% in 2014 to 32% in 2016, with DND use rising from 10.2 to 11.3%. Average purchase amounts for DND users rose from 291 g in 2014 to 374 g in 2016, while mean amounts among non-DND users declined from 78 to 28.6 g.

conclusionsThe expansion of retail cannabis stores in Washington appears to have led to increased market size in 2016 with all of the increase attributed to DND users. Frequent users may be important to consider in legalization evaluations.

Indexed as

CannabisIllegalLegalMarijuanaMarijuana productsMarket shareWashington State

Identifiers

PMID35788247
PMCPMC9251922

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.