John G Hanlon

Biographic Data

ID6174528
NAMEJohn G Hanlon
GIVEN NAMESJohn G
FAMILY NAMEHanlon
SIGNATUREHANLON J G
AFFILIATIONSSt. Michael's Hospital
VERIFIEDNo
TOTAL WORKS6
TOTAL CITATIONS1
AUTHOR COUNT6
EDITOR COUNT0
FIRST PUBLICATION YEAR2020
LATEST PUBLICATION YEAR2026
H-INDEX1

  • Opioid Initiation in Older Patients with Chronic Pain Who Received Authorized Cannabis Prescription

    Émilie Fontaine, Jihane El-Mourad et al.ARTICLESubstance Use & Misuse2026

    BACKGROUND: Cannabis is being increasingly used to treat chronic pain, with studies suggesting that concurrent use with opioids may reduce the need for opioid medications. However, specific to opioid-naïve patients, the effects of cannabis exposure on opioid initiation are not well known. OBJECTIVE: To assess the association between the authorized prescription of cannabis and opioid initiation in older patients with chronic pain. STUDY DESIGN: We…

  • Benzodiazepine use in medical cannabis authorization adult patients from 2013 to 2021

    Open AccessCerina Lee, Cerina Dubois et al.ARTICLEBMC Public Health2024

    Medical cannabis authorization had little to no effect on benzodiazepine usage among patients prescribed regular benzodiazepine treatment in Alberta, Canada. • Further clinical research is needed to investigate the potential impact of medical cannabis as an alternative to benzodiazepine medication

  • Incidence and Predictors of Cannabis-Related Poisoning and Mental and Behavioral Disorders among Patients with Medical Cannabis Authorization

    Arsene Zongo, Cerina Lee et al.ARTICLESubstance Use & Misuse2022

    OBJECTIVE: As medical cannabis use increases in North America, establishing its safety profile is a priority. The objective of this study was to assess rates of emergency department (ED) visits and hospitalizations due to poisoning by cannabis, and cannabis-related mental health disorders among medically authorized cannabis patients in Ontario, Canada, between 2014 and 2017. METHODS: This is a retrospective cohort study of patients who received m…

  • Opioid use in medical cannabis authorization adult patients from 2013 to 2018

    Open AccessCerina Lee, Mu Lin et al.ARTICLEBMC Public Health2021

    This short-term study found that medical cannabis authorization showed intermediate effects on opioid use, which was dependent on initial opioid use. Greater observations of changes in OME appear to be in those patients who were on a high dosage of opioids (OME > 100); however, continued surveillance of patients utilizing both opioids and medical cannabis is warranted by clinicians to understand the long-term potential benefits and any harms of o…

  • Changes in patient health questionnaire (PHQ-9) scores in adults with medical authorization for cannabis

    Open AccessJessica M Round, Cerina Lee et al.ARTICLEBMC Public Health2020

    Although the majority showed no clinically important changes in PHQ-9 scores, a number of patients showed improvement or deteriorations in PHQ-9 scores. Future studies should focus on the parallel use of screening questionnaires to control for PHQ-9 sensitivity and to explore potential factors that may have attributed to the improvement in scores pre- and post- 3-6 month time period

  • Cohort study of medical cannabis authorisation and healthcare utilisation in 2014–2017 in Ontario, Canada

    Dean T Eurich, Cerina Lee et al.ARTICLEJournal of Epidemiology and…2020Cited by: 1References: 25

    BACKGROUND: The impact of medical cannabis on healthcare utilisation between 2014 and 2017 in Ontario, Canada. With cannabis legalisation in Canada and some states in the USA, high-quality longitudinal cohort research studies are of urgent need to assess the impact of cannabis use on healthcare utilisation. METHODS: A matched cohort study of 9925 medical cannabis authorised adult patients (inhaled (smoked or vaporised) or orally consumed (oils)) …