David C Marsh
Datos Biográficos
| ID | 257611 |
|---|---|
| NOMBRE | David C Marsh |
| NOMBRES | David C |
| APELLIDO | Marsh |
| FIRMA | MARSH D C |
| AFILIACIONES | NOSM University |
| ORCID | 0000-0002-8769-1785 |
| VERIFICADO | Sí |
| TOTAL DE OBRAS | 33 |
| TOTAL DE CITAS | 15 |
| TOTAL COMO AUTOR | 33 |
| TOTAL COMO EDITOR | 0 |
| PRIMER AÑO DE PUBLICACIÓN | 1960 |
| AÑO MÁS RECIENTE DE PUBLICACIÓN | 2025 |
| ÍNDICE H | 1 |
Mapping the overdose crisis in Ontario
Sparsely populated and rural PHUs experience the highest burden of opioid-related harms, coupled with limitations in service accessibility, demonstrating a clear need for additional harm reduction services. Decision-makers may be misled into underestimating the crisis in non-urban areas as a result of oversimplified reporting, resulting in inadequate support for these regions. Addressing these disparities is key to reducing opioid-related mortali…
Examining inequities in access to opioid agonist treatment (OAT) take-home doses (THD)
Cannabis use and opioid relapse
Our analysis failed to show cannabis to be protective against relapse to opioid use in patients receiving buprenorphine-naloxone for OUD. We identified that individuals who inject drugs, are on higher doses of buprenorphine-naloxone, or have been in treatment for less than two years have a higher hazard for relapse. The presence of such factors may thus warrant closer patient follow-up and more stringent treatment protocols to mitigate risk of re…
Association of prescribed oral stimulants on cocaine use among patients enrolled in opioid agonist treatment
The use of oral stimulant prescriptions to treat cocaine use had no clinically significant benefit in a real-world setting. Patients who receive prescriptions for oral stimulants consume more cocaine before and after treatment compared to patients without an oral stimulant prescription. We also observed that cocaine use was reduced with increased time since treatment initiation
Negative Impact of Amphetamine-Type Stimulant Use on Opioid Agonist Treatment Retention in Ontario, Canada
Objective: The objective of this study was to evaluate epidemiological trends of co-use patterns of amphetamine-type stimulants and opioids and the impact of co-use patterns on Opioid Agonist Treatment (OAT) retention in Ontario, Canada. The secondary objective was to assess geographical variation in amphetamine-type stimulant use in Northern Rural, Northern Urban, Southern Rural and Southern Urban Areas of Ontario. Methods: A retrospective cohor…
Evidence of increased Fentanyl use during the Covid-19 pandemic among opioid agonist treatment patients in Ontario, Canada
The use of fentanyl increased by 108% among OAT patients in Ontario during the COVID 19 pandemic. We argue that the persistent increase of fentanyl exposure over time, specifically in the OAT population, suggests that reduced monitoring may decrease OAT's effectiveness and negatively impact patient outcomes
Self‐managing illicit stimulant use
The Impact of Training Indigenous Facilitators for a Two-Eyed Seeing Research Treatment Intervention for Intergenerational Trauma and Addiction
Intergenerational trauma in Indigenous Peoples was not the result of a targeted event, but rather political and governmental policies inflicted upon entire generations. The resultant effects of these traumas and multiple losses include addiction, depression, anxiety, violence, self-destructive behaviors, and suicide, to name but a few. Traditional healers, Elders, and Indigenous facilitators agree that the reclamation of traditional healing pract…
The Sweat Lodge Ceremony
Many traditional healers and Elders agree that strengthening cultural identity, incorporating traditional healing practices, and encouraging community integration can enhance and improve mental health and reduce substance use disorders (SUD) in Indigenous populations. Despite the fact that traditional healing practices have always been valued by Indigenous Peoples, there is very little research on efficacy. Recent research by one of the authors i…
The impact of cocaine use in patients enrolled in opioid agonist therapy in Ontario, Canada
Hydromorphone Compared With Diacetylmorphine for Long-term Opioid Dependence
clinicaltrials.gov Identifier: NCT01447212.
Predictors of treatment allocation guesses in a randomized controlled trial testing double-blind injectable hydromorphone and diacetylmorphine for severe opioid use disorder
Background: SALOME (Study to Assess Longer-term Opioid Medication Effectiveness) tested in a double-blind non-inferiority clinical trial if hydromorphone could be as effective as diacetylmorphine for severe opioid use disorder. Although participants did not guess treatment correctly beyond what is expected by chance, perceived treatment assignment could affect patients’ response to treatment. This study tested if treatment allocation guess is ass…
A Community Care Model of Intravenous Antibiotic Therapy for Injection Drug Users with Deep Tissue Infection for “Reduce Leaving Against Medical Advice”
Deep tissue infection is a serious sequela that often demands intravenous (IV) antibiotic treatment. With respect to IV drug users (IDU's), research and lived experience demonstrates a trend of failed treatment outcomes, most notably associated with leaving hospital against medical advice (LAMA) prior to treatment completion, increased adverse outcomes and patient hardship. This paper examines an alternative model for delivering and completing IV…
Sexual identity and drug use harm among high-risk, active substance users
Research shows that sexual minorities are at greater risk for illicit substance use and related harm than their heterosexual counterparts. This study examines a group of active drug users to assess whether sexual identity predicts increased risk of substance use and harm from ecstasy, ketamine, alcohol, marijuana, cocaine and crack. Structured interviews were conducted with participants aged 15 years and older in Vancouver and Victoria, BC, Canad…
An examination of injection drug use trends in Victoria and Vancouver, BC after the closure of Victoria's only fixed-site needle and syringe programme
A ‘standard joint’? The role of quantity in predicting cannabis-related problems
The ‘standard drink’ concept is widely used as a standardized measure of alcohol consumption. There is no equivalent measure of cannabis consumption, perhaps due to challenges such as varied joint size, tetrahydrocannabinol content, and means of delivery. This study introduces a new measure of cannabis quantity and examines whether it predicts cannabis-related social problems with and without controlling for frequency of use. Cannabis-related pro…
A Canadian perspective on cannabis normalization among adults
Once associated with ‘deviant’ subcultures, the use of cannabis is now common across Canadian society. This has led some to argue that cannabis use is becoming normalized in Canada with important implications for drug policy, law enforcement and public health. This article takes up these issues, reporting the results of a qualitative study involving 165, socially integrated, adult cannabis users in four Canadian cities (Vancouver, Montreal, Toron…
Characteristics and Response to Treatment among Aboriginal People Receiving Heroin-assisted Treatment
The British Columbia Alcohol and other Drug Monitoring System
This pilot project is a province-wide and nationally=supported collaboration intended to add value to existing monitoring and surveillance exercises that currently exist and are being developed in Canada. The fundamental aim is to create a system that generates a timely flow of data on hazardous patterns of substance use and related harms so as to inform public debate, to support effective policy, and to facilitate policy-relevant epidemiological…
The North American Opiate Medication Initiative (Naomi)
Predictors of non-fatal overdose among a cohort of polysubstance-using injection drug users
Addiction treatment in Vancouver
Club Drug Use, Sexual Behavior, and HIV Risk Among Community and Internet Samples of Hispanic MSM
Hispanic men who have sex with men (MSM) are at high risk of HIV infection. This study reports on the club drug use and sexual behaviors of two distinct samples (community and Internet) of Hispanic MSM living in the AIDS epicenter of Miami-Dade County. Both samples reported high rates of unprotected anal sex and high numbers of sex partners; rates of club drug use (cocaine, ecstasy, methamphetamines, GHB, amyl nitrites, and Viagra) were also high…
Rationale to Evaluate Medically Supervised Safer Smoking Facilities for Non-injection Illicit Drug Users
Pressure politics
The Relationship Between Policy Networks at the Sectoral and Sub‐sectoral Levels
The British Columbia Alcohol and other Drug Monitoring System
This pilot project is a province-wide and nationally=supported collaboration intended to add value to existing monitoring and surveillance exercises that currently exist and are being developed in Canada. The fundamental aim is to create a system that generates a timely flow of data on hazardous patterns of substance use and related harms so as to inform public debate, to support effective policy, and to facilitate policy-relevant epidemiological…
The North American Opiate Medication Initiative (Naomi)
The Changing Social Structure of England and Wales 1871-1961
An Introduction to the Study of Social Administration
The Changing Social Structure of England and Wales 1871-1951
A Survey of Social Conditions in England and Wales as Illustrated by Statistics
The Changing Social Structure of England and Wales 1871-1951
The Changing Social Structure of England and Wales 1871-1951
The Social Sciences
An Introduction to the Study of Social Administration
The Changing Social Structure of England and Wales 1871-1961
The Relationship Between Policy Networks at the Sectoral and Sub‐sectoral Levels
Drug testing and mandatory treatment for welfare recipients
Club Drug Use, Sexual Behavior, and HIV Risk Among Community and Internet Samples of Hispanic MSM
Hispanic men who have sex with men (MSM) are at high risk of HIV infection. This study reports on the club drug use and sexual behaviors of two distinct samples (community and Internet) of Hispanic MSM living in the AIDS epicenter of Miami-Dade County. Both samples reported high rates of unprotected anal sex and high numbers of sex partners; rates of club drug use (cocaine, ecstasy, methamphetamines, GHB, amyl nitrites, and Viagra) were also high…
Rationale to Evaluate Medically Supervised Safer Smoking Facilities for Non-injection Illicit Drug Users
Addiction treatment in Vancouver
Predictors of non-fatal overdose among a cohort of polysubstance-using injection drug users
The North American Opiate Medication Initiative (Naomi)
The British Columbia Alcohol and other Drug Monitoring System
This pilot project is a province-wide and nationally=supported collaboration intended to add value to existing monitoring and surveillance exercises that currently exist and are being developed in Canada. The fundamental aim is to create a system that generates a timely flow of data on hazardous patterns of substance use and related harms so as to inform public debate, to support effective policy, and to facilitate policy-relevant epidemiological…
Characteristics and Response to Treatment among Aboriginal People Receiving Heroin-assisted Treatment
A ‘standard joint’? The role of quantity in predicting cannabis-related problems
The ‘standard drink’ concept is widely used as a standardized measure of alcohol consumption. There is no equivalent measure of cannabis consumption, perhaps due to challenges such as varied joint size, tetrahydrocannabinol content, and means of delivery. This study introduces a new measure of cannabis quantity and examines whether it predicts cannabis-related social problems with and without controlling for frequency of use. Cannabis-related pro…
A Canadian perspective on cannabis normalization among adults
Once associated with ‘deviant’ subcultures, the use of cannabis is now common across Canadian society. This has led some to argue that cannabis use is becoming normalized in Canada with important implications for drug policy, law enforcement and public health. This article takes up these issues, reporting the results of a qualitative study involving 165, socially integrated, adult cannabis users in four Canadian cities (Vancouver, Montreal, Toron…
An examination of injection drug use trends in Victoria and Vancouver, BC after the closure of Victoria's only fixed-site needle and syringe programme
Sexual identity and drug use harm among high-risk, active substance users
Research shows that sexual minorities are at greater risk for illicit substance use and related harm than their heterosexual counterparts. This study examines a group of active drug users to assess whether sexual identity predicts increased risk of substance use and harm from ecstasy, ketamine, alcohol, marijuana, cocaine and crack. Structured interviews were conducted with participants aged 15 years and older in Vancouver and Victoria, BC, Canad…
A Community Care Model of Intravenous Antibiotic Therapy for Injection Drug Users with Deep Tissue Infection for “Reduce Leaving Against Medical Advice”
Deep tissue infection is a serious sequela that often demands intravenous (IV) antibiotic treatment. With respect to IV drug users (IDU's), research and lived experience demonstrates a trend of failed treatment outcomes, most notably associated with leaving hospital against medical advice (LAMA) prior to treatment completion, increased adverse outcomes and patient hardship. This paper examines an alternative model for delivering and completing IV…
Hydromorphone Compared With Diacetylmorphine for Long-term Opioid Dependence
clinicaltrials.gov Identifier: NCT01447212.
Predictors of treatment allocation guesses in a randomized controlled trial testing double-blind injectable hydromorphone and diacetylmorphine for severe opioid use disorder
Background: SALOME (Study to Assess Longer-term Opioid Medication Effectiveness) tested in a double-blind non-inferiority clinical trial if hydromorphone could be as effective as diacetylmorphine for severe opioid use disorder. Although participants did not guess treatment correctly beyond what is expected by chance, perceived treatment assignment could affect patients’ response to treatment. This study tested if treatment allocation guess is ass…
The impact of cocaine use in patients enrolled in opioid agonist therapy in Ontario, Canada
The Sweat Lodge Ceremony
Many traditional healers and Elders agree that strengthening cultural identity, incorporating traditional healing practices, and encouraging community integration can enhance and improve mental health and reduce substance use disorders (SUD) in Indigenous populations. Despite the fact that traditional healing practices have always been valued by Indigenous Peoples, there is very little research on efficacy. Recent research by one of the authors i…
Self‐managing illicit stimulant use
Medicine (23 obras) · Psychiatry (19 obras) · Opioid Use Disorder Treatment (14 obras) · Psychology (13 obras) · Substance Abuse Treatment and Outcomes (13 obras) · Sociology (11 obras) · HIV, Drug Use, Sexual Risk (10 obras) · Opioid (10 obras) · Internal Medicine (9 obras) · Drug (8 obras)