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Related Concept Videos

Longitudinal Research02:20

Longitudinal Research

11.9K
Sometimes we want to see how people change over time, as in studies of human development and lifespan. When we test the same group of individuals repeatedly over an extended period of time, we are conducting longitudinal research. Longitudinal research is a research design in which data-gathering is administered repeatedly over an extended period of time. For example, we may survey a group of individuals about their dietary habits at age 20, retest them a decade later at age 30, and then again...
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Cochran's Q Test01:17

Cochran's Q Test

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Cochran's Q Test is a nonparametric statistical test used to determine if there are potential differences in the outcomes of three or more related groups on a binary (yes/no) or dichotomous outcome. It is essentially an extension of the McNemar Test, which is limited to two related samples - Cochran's Q test can handle three or more related samples, making it more versatile in scenarios where subjects are measured under multiple conditions. The test statistic follows a Chi-Square...
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Updated: Jun 24, 2025

Brain Morphology of Cannabis Users With or Without Psychosis: A Pilot MRI Study
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Testing a Brief Quitline Intervention for Tobacco Cannabis Co-Users: A Randomized Controlled Pilot Study.

Kelly M Carpenter1, Denise D Walker2, Kristina Mullis1

  • 1Center for Wellbeing Research, RVO Health, Seattle, WA, USA.

Tobacco Use Insights
|June 14, 2024
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Summary

A pilot study tested a tailored intervention for tobacco and cannabis co-users in quitlines. The intervention was feasible and acceptable, but did not improve tobacco cessation rates compared to usual care.

Keywords:
Tobaccocannabiscessationcoachinginterventionsquitlines

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Area of Science:

  • Addiction Medicine
  • Public Health
  • Behavioral Science

Background:

  • Tobacco and cannabis co-use is increasingly prevalent, posing challenges for smoking cessation.
  • Quitlines serve many callers who also use cannabis, necessitating tailored interventions.
  • Heavy cannabis use is common among individuals seeking to quit smoking.

Purpose of the Study:

  • To evaluate the feasibility and acceptability of a tailored intervention for tobacco and cannabis co-users within US quitlines.
  • To assess the impact of the Quitline Check-Up (QLCU) intervention on tobacco abstinence and cannabis use.

Main Methods:

  • A randomized pilot study involving 102 tobacco and cannabis co-users recruited from four state quitlines.
  • Participants were randomized to receive either treatment as usual (TAU) or the QLCU intervention.
  • Outcomes, including tobacco abstinence and cannabis use, were assessed 90 days post-randomization.

Main Results:

  • The QLCU intervention demonstrated high feasibility and acceptability among quitline coaches and participants.
  • Treatment engagement and satisfaction were high in both the TAU and QLCU groups.
  • No significant difference in 7-day point prevalence tobacco abstinence rates was observed between the QLCU and TAU groups (24.5% vs. 28.6%).

Conclusions:

  • The tailored intervention for tobacco and cannabis co-users is feasible and acceptable for delivery in quitline settings.
  • Further research is needed to identify which co-users may benefit from tailored interventions for smoking cessation.
  • Pragmatic intervention development in real-world settings can accelerate the process of creating effective cessation tools.