TY - JOUR
T1 - First-Year Trajectories of Medical Cannabis Use Among Adults Taking Opioids for Chronic Pain
T2 - An Observational Cohort Study
AU - Ross, Jonathan
AU - Slawek, Deepika E.
AU - Zhang, Chenshu
AU - Starrels, Joanna L.
AU - Levin, Frances R.
AU - Sohler, Nancy L.
AU - Minami, Haruka
AU - Arnsten, Julia H.
AU - Cunningham, Chinazo O.
N1 - Publisher Copyright:
© 2021 The Author(s). Published by Oxford University Press on behalf of the American Academy of Pain Medicine. All rights reserved.
PY - 2021/12/1
Y1 - 2021/12/1
N2 - Objective: To describe first-year trajectories of medical cannabis use and identify characteristics associated with patterns of use in a cohort of adults using opioids for chronic pain. Design: Latent class trajectory analysis of a prospective cohort study using data on the 14-day frequency of medical cannabis use. Setting: A large academic medical center and four medical cannabis dispensaries in the New York City metropolitan area. Subjects: Adults with chronic pain using opioids and newly certified for medical cannabis in New York between 2018 and 2020. Methods: Using latent class trajectory analysis, we identified clusters of participants based on the 14-day frequency of medical cannabis use. We used logistic regression to determine factors associated with cluster membership, including sociodemographic characteristics, pain, substance use, and mental health symptoms. Results: Among 99 participants, the mean age was 53 years; 62% were women, and 52% were White. We identified three clusters of medical cannabis use: infrequent use (n = 30, mean use = 1.5 days/14-day period), occasional use (n = 28, mean = 5.7 days/14-day period), and frequent use (n = 41, mean = 12.1 days/14-day period). Within clusters, use patterns did not vary significantly over 52 weeks. Differences were observed in two sociodemographic variables: Frequent (vs infrequent) use was associated with non-Hispanic White race/ethnicity (adjusted odds ratio 4.54, 95% confidence interval 1.49-14.29), while occasional (vs infrequent) use was associated with employment (adjusted odds ratio 13.84, 95% confidence interval 1.21-158.74). Conclusions: Three clusters of medical cannabis use patterns emerged and were stable over time. Results suggest that structural factors related to race/ethnicity and employment may be major drivers of medical cannabis use, even among adults certified for its use.
AB - Objective: To describe first-year trajectories of medical cannabis use and identify characteristics associated with patterns of use in a cohort of adults using opioids for chronic pain. Design: Latent class trajectory analysis of a prospective cohort study using data on the 14-day frequency of medical cannabis use. Setting: A large academic medical center and four medical cannabis dispensaries in the New York City metropolitan area. Subjects: Adults with chronic pain using opioids and newly certified for medical cannabis in New York between 2018 and 2020. Methods: Using latent class trajectory analysis, we identified clusters of participants based on the 14-day frequency of medical cannabis use. We used logistic regression to determine factors associated with cluster membership, including sociodemographic characteristics, pain, substance use, and mental health symptoms. Results: Among 99 participants, the mean age was 53 years; 62% were women, and 52% were White. We identified three clusters of medical cannabis use: infrequent use (n = 30, mean use = 1.5 days/14-day period), occasional use (n = 28, mean = 5.7 days/14-day period), and frequent use (n = 41, mean = 12.1 days/14-day period). Within clusters, use patterns did not vary significantly over 52 weeks. Differences were observed in two sociodemographic variables: Frequent (vs infrequent) use was associated with non-Hispanic White race/ethnicity (adjusted odds ratio 4.54, 95% confidence interval 1.49-14.29), while occasional (vs infrequent) use was associated with employment (adjusted odds ratio 13.84, 95% confidence interval 1.21-158.74). Conclusions: Three clusters of medical cannabis use patterns emerged and were stable over time. Results suggest that structural factors related to race/ethnicity and employment may be major drivers of medical cannabis use, even among adults certified for its use.
KW - Cannabis
KW - Chronic Pain
KW - Complementary Medicine
KW - Medical Cannabis
KW - Pain Management
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U2 - 10.1093/pm/pnab257
DO - 10.1093/pm/pnab257
M3 - Article
C2 - 34411246
AN - SCOPUS:85122549143
SN - 1526-2375
VL - 22
SP - 3080
EP - 3088
JO - Pain Medicine (United States)
JF - Pain Medicine (United States)
IS - 12
ER -