Courtney McKnight
Dados Biográficos
| ID | 5134197 |
|---|---|
| NOME | Courtney McKnight |
| PRENOMES | Courtney |
| SOBRENOME | McKnight |
| ASSINATURA | MCKNIGHT C |
| AFILIAÇÕES | Mount Sinai Beth Israel |
| ORCID | 0000-0001-8685-5381 |
| VERIFICADO | Sim |
| TOTAL DE OBRAS | 25 |
| TOTAL DE CITAÇÕES | 53 |
| TOTAL COMO AUTOR | 25 |
| TOTAL COMO EDITOR | 0 |
| PRIMEIRO ANO DE PUBLICAÇÃO | 2003 |
| ANO MAIS RECENTE DE PUBLICAÇÃO | 2025 |
| ÍNDICE H | 3 |
Naloxone Carriage Among People Who Inject Drugs in New York City
Fentanyl Polysubstance Use Patterns and Their Associations With Hepatitis C Virus, Skin and Soft Tissue Infections, and Non‐Fatal Overdose Among People Who Inject Drugs in New York City
Heroin, Fentanyl, Intentional Fentanyl Use and HIV Transmission in a Community-Recruited Sample of Persons Who Inject Drugs, New York City
Harms associated with injecting in public spaces
Field Testing the “Avoid the Needle” Intervention for Persons at Risk for Transitioning to Injecting Drug Use in Tallinn, Estonia and New York City, USA
This study aimed to field tested the "Avoid the Needle" (AtN) intervention to reduce transitions from non-injecting to injecting drug use in two different epidemiological settings. Respondent driven sampling was used to recruit current non-injecting drug users (NIDUs) in Tallinn, Estonia in 2018-19 and in New York City (NYC) in 2019-20. Both persons who had never injected and persons who had previously injected but not in the last 6 months were e…
Understanding intentionality of fentanyl use and drug overdose risk
As the proportion of drug overdose deaths involving fentanyl continues to increase in the US, monitoring exposure to and possible changes in intention to use fentanyl among people who use drugs (PWUD) is of great public health importance. This mixed methods study examines intentionality of fentanyl use among persons who inject drugs (PWID) in New York City during a period of unprecedently high rates of drug overdose mortality. Between October 202…
Recurrent Injecting Drug Use as a Mediator between Psychiatric Disorder and Non-Fatal Overdose
Background Unintentional drug overdose has increased markedly in the United States. Studies document an association between psychiatric disorder and unintentional overdose; we extend this research through a preliminary test of a causal model of recurrent injection drug use mediating this relationship.Methods In a cross-sectional study of 241 adults in New York City with a possible current substance use disorder, we conducted conventional and Imai…
Hepatitis C incidence and prevalence among Puerto Rican people who use drugs in New York City
Background : Hepatitis C virus (HCV) infection is associated with substantial morbidity and mortality among people who use drugs (PWUD). Health disparities related to race/ethnicity and immigration status also increase the risk of HCV infection and decrease the probability of linkage to care. Effective, curative treatment is now available for HCV infection and, alongside prevention, may eliminate HCV epidemics. Methods : We examined HCV incidence…
Injection and Heterosexual Risk Behaviors for HIV Infection Among Non-gay Identifying Men Who Have Sex with Men and Women
Alternative kinship structures, resilience and social support among immigrant trans Latinas in the USA
Latinas comprise the largest racial/ethnic group of trans women (male-to-female transgender people) in New York City, where HIV seroprevalence among trans Latinas has been found to be as high as 49%. Despite this population's high risk of HIV, little is known about resilience among trans Latinas that may provide protective health factors. Six focus groups and one in-depth interview were conducted with 34 low-income trans/gender-variant people of …
Being “hooked up” during a sharp increase in the availability of illicitly manufactured fentanyl
Racial/Ethnic Disparities at the End of an HIV Epidemic
Objectives. To examine whether racial/ethnic disparities persist at the “end of the HIV epidemic” (prevalence of untreated HIV infection Methods. We recruited 2404 PWID entering New York City substance use treatment in 2001 to 2005 and 2011 to 2015. We conducted a structured interview, and testing for HIV and herpes simplex virus 2 (HSV-2; a biomarker for high sexual risk). We estimated incidence by using newly diagnosed cases of HIV. Disparity a…
Perceived discrimination among racial and ethnic minority drug users and the association with health care utilization
People who use drugs (PWUDs) are at increased risk for several medical conditions, yet they delay seeking medical care and utilize emergency departments (EDs) as their primary source of care. Limited research regarding perceived discrimination and PWUDs' use of health care services exists. This study explores the association between interpersonal and institutional racial/ethnic and drug use discrimination in health care settings and health care u…
Consistent Estimates of Very Low HIV Incidence Among People Who Inject Drugs
Objectives. To compare methods for estimating low HIV incidence among persons who inject drugs. Methods. We examined 4 methods in New York City, 2005 to 2014: (1) HIV seroconversions among repeat participants, (2) increase of HIV prevalence by additional years of injection among new injectors, (3) the New York State and Centers for Disease Control and Prevention stratified extrapolation algorithm, and (4) newly diagnosed HIV cases reported to the…
Providing ART to HIV Seropositive Persons Who Use Drugs
Combined HIV Prevention, the New York City Condom Distribution Program, and the Evolution of Safer Sex Behavior Among Persons Who Inject Drugs in New York City
Use of the “NYC Condom” among People Who Use Drugs
A Randomized Trial of a Hepatitis Care Coordination Model in Methadone Maintenance Treatment
Objectives. We evaluated the efficacy of a hepatitis care coordination intervention to improve linkage to hepatitis A virus (HAV) and hepatitis B virus (HBV) vaccination and clinical evaluation of hepatitis C virus (HCV) infection among methadone maintenance patients. Methods. We conducted a randomized controlled trial of 489 participants from methadone maintenance treatment programs in San Francisco, California, and New York City from February 2…
Associations Between Herpes Simplex Virus Type 2 and HCV With HIV Among Injecting Drug Users in New York City
Objectives. We examined relationships between herpes simplex virus type 2 (HSV-2), a biomarker for sexual risk, and HCV, a biomarker for injecting risk, with HIV among injecting drug users (IDUs) who began injecting after large-scale expansion of syringe exchange programs in New York City. Methods. We recruited 337 heroin and cocaine users who began injecting in 1995 or later from persons entering drug detoxification. We administered a structured…
Persistence and Change in Disparities in HIV Infection Among Injection Drug Users in New York City After Large-Scale Syringe Exchange Programs
Objectives. We examined racial/ethnic disparities in HIV infection among injection drug users (IDUs) before and after implementation of large-scale syringe exchange programs in New York City. Methods. Participants were recruited from IDUs entering the Beth Israel drug detoxification program in New York City. Participants (n = 1203) recruited from 1990 through 1994, prior to large-scale syringe exchange programs (pre-exchange), were compared with …
Effectiveness of Respondent–Driven Sampling for Recruiting Drug Users in New York City
Social and Political Factors Predicting the Presence of Syringe Exchange Programs in 96 US Metropolitan Areas
Community activism can be important in shaping public health policies. For example, political pressure and direct action from grassroots activists have been central to the formation of syringe exchange programs (SEPs) in the United States. We explored why SEPs are present in some localities but not others, hypothesizing that programs are unevenly distributed across geographic areas as a result of political, socioeconomic, and organizational chara…
Respondent-Driven Sampling in a Study of Drug Users in New York City
Beth Israel Medical Center (BIMC), in collaboration with the Centers for Disease Control (CDC) and the New York State Department of Health (NYSDOH), used respondent-driven sampling (RDS) in a study of HIV seroprevalence among drug users in New York City in 2004. We report here on operational issues with RDS including recruitment, coupon distribution, storefront operations, police and community relations, and the overall lessons we learned. Projec…
Effectiveness of Respondent-Driven Sampling for Recruiting Drug Users in New York City
What predicts which metropolitan areas in the USA have syringe exchanges
Effectiveness of Respondent-Driven Sampling for Recruiting Drug Users in New York City
Respondent-Driven Sampling in a Study of Drug Users in New York City
Beth Israel Medical Center (BIMC), in collaboration with the Centers for Disease Control (CDC) and the New York State Department of Health (NYSDOH), used respondent-driven sampling (RDS) in a study of HIV seroprevalence among drug users in New York City in 2004. We report here on operational issues with RDS including recruitment, coupon distribution, storefront operations, police and community relations, and the overall lessons we learned. Projec…
Social and Political Factors Predicting the Presence of Syringe Exchange Programs in 96 US Metropolitan Areas
Community activism can be important in shaping public health policies. For example, political pressure and direct action from grassroots activists have been central to the formation of syringe exchange programs (SEPs) in the United States. We explored why SEPs are present in some localities but not others, hypothesizing that programs are unevenly distributed across geographic areas as a result of political, socioeconomic, and organizational chara…
Perceived discrimination among racial and ethnic minority drug users and the association with health care utilization
People who use drugs (PWUDs) are at increased risk for several medical conditions, yet they delay seeking medical care and utilize emergency departments (EDs) as their primary source of care. Limited research regarding perceived discrimination and PWUDs' use of health care services exists. This study explores the association between interpersonal and institutional racial/ethnic and drug use discrimination in health care settings and health care u…
Consistent Estimates of Very Low HIV Incidence Among People Who Inject Drugs
Objectives. To compare methods for estimating low HIV incidence among persons who inject drugs. Methods. We examined 4 methods in New York City, 2005 to 2014: (1) HIV seroconversions among repeat participants, (2) increase of HIV prevalence by additional years of injection among new injectors, (3) the New York State and Centers for Disease Control and Prevention stratified extrapolation algorithm, and (4) newly diagnosed HIV cases reported to the…
Associations Between Herpes Simplex Virus Type 2 and HCV With HIV Among Injecting Drug Users in New York City
Objectives. We examined relationships between herpes simplex virus type 2 (HSV-2), a biomarker for sexual risk, and HCV, a biomarker for injecting risk, with HIV among injecting drug users (IDUs) who began injecting after large-scale expansion of syringe exchange programs in New York City. Methods. We recruited 337 heroin and cocaine users who began injecting in 1995 or later from persons entering drug detoxification. We administered a structured…
Persistence and Change in Disparities in HIV Infection Among Injection Drug Users in New York City After Large-Scale Syringe Exchange Programs
Objectives. We examined racial/ethnic disparities in HIV infection among injection drug users (IDUs) before and after implementation of large-scale syringe exchange programs in New York City. Methods. Participants were recruited from IDUs entering the Beth Israel drug detoxification program in New York City. Participants (n = 1203) recruited from 1990 through 1994, prior to large-scale syringe exchange programs (pre-exchange), were compared with …
A Randomized Trial of a Hepatitis Care Coordination Model in Methadone Maintenance Treatment
Objectives. We evaluated the efficacy of a hepatitis care coordination intervention to improve linkage to hepatitis A virus (HAV) and hepatitis B virus (HBV) vaccination and clinical evaluation of hepatitis C virus (HCV) infection among methadone maintenance patients. Methods. We conducted a randomized controlled trial of 489 participants from methadone maintenance treatment programs in San Francisco, California, and New York City from February 2…
What predicts which metropolitan areas in the USA have syringe exchanges
Respondent-Driven Sampling in a Study of Drug Users in New York City
Beth Israel Medical Center (BIMC), in collaboration with the Centers for Disease Control (CDC) and the New York State Department of Health (NYSDOH), used respondent-driven sampling (RDS) in a study of HIV seroprevalence among drug users in New York City in 2004. We report here on operational issues with RDS including recruitment, coupon distribution, storefront operations, police and community relations, and the overall lessons we learned. Projec…
Effectiveness of Respondent-Driven Sampling for Recruiting Drug Users in New York City
Effectiveness of Respondent–Driven Sampling for Recruiting Drug Users in New York City
Social and Political Factors Predicting the Presence of Syringe Exchange Programs in 96 US Metropolitan Areas
Community activism can be important in shaping public health policies. For example, political pressure and direct action from grassroots activists have been central to the formation of syringe exchange programs (SEPs) in the United States. We explored why SEPs are present in some localities but not others, hypothesizing that programs are unevenly distributed across geographic areas as a result of political, socioeconomic, and organizational chara…
Persistence and Change in Disparities in HIV Infection Among Injection Drug Users in New York City After Large-Scale Syringe Exchange Programs
Objectives. We examined racial/ethnic disparities in HIV infection among injection drug users (IDUs) before and after implementation of large-scale syringe exchange programs in New York City. Methods. Participants were recruited from IDUs entering the Beth Israel drug detoxification program in New York City. Participants (n = 1203) recruited from 1990 through 1994, prior to large-scale syringe exchange programs (pre-exchange), were compared with …
Associations Between Herpes Simplex Virus Type 2 and HCV With HIV Among Injecting Drug Users in New York City
Objectives. We examined relationships between herpes simplex virus type 2 (HSV-2), a biomarker for sexual risk, and HCV, a biomarker for injecting risk, with HIV among injecting drug users (IDUs) who began injecting after large-scale expansion of syringe exchange programs in New York City. Methods. We recruited 337 heroin and cocaine users who began injecting in 1995 or later from persons entering drug detoxification. We administered a structured…
Combined HIV Prevention, the New York City Condom Distribution Program, and the Evolution of Safer Sex Behavior Among Persons Who Inject Drugs in New York City
Use of the “NYC Condom” among People Who Use Drugs
A Randomized Trial of a Hepatitis Care Coordination Model in Methadone Maintenance Treatment
Objectives. We evaluated the efficacy of a hepatitis care coordination intervention to improve linkage to hepatitis A virus (HAV) and hepatitis B virus (HBV) vaccination and clinical evaluation of hepatitis C virus (HCV) infection among methadone maintenance patients. Methods. We conducted a randomized controlled trial of 489 participants from methadone maintenance treatment programs in San Francisco, California, and New York City from February 2…
Providing ART to HIV Seropositive Persons Who Use Drugs
Consistent Estimates of Very Low HIV Incidence Among People Who Inject Drugs
Objectives. To compare methods for estimating low HIV incidence among persons who inject drugs. Methods. We examined 4 methods in New York City, 2005 to 2014: (1) HIV seroconversions among repeat participants, (2) increase of HIV prevalence by additional years of injection among new injectors, (3) the New York State and Centers for Disease Control and Prevention stratified extrapolation algorithm, and (4) newly diagnosed HIV cases reported to the…
Racial/Ethnic Disparities at the End of an HIV Epidemic
Objectives. To examine whether racial/ethnic disparities persist at the “end of the HIV epidemic” (prevalence of untreated HIV infection Methods. We recruited 2404 PWID entering New York City substance use treatment in 2001 to 2005 and 2011 to 2015. We conducted a structured interview, and testing for HIV and herpes simplex virus 2 (HSV-2; a biomarker for high sexual risk). We estimated incidence by using newly diagnosed cases of HIV. Disparity a…
Perceived discrimination among racial and ethnic minority drug users and the association with health care utilization
People who use drugs (PWUDs) are at increased risk for several medical conditions, yet they delay seeking medical care and utilize emergency departments (EDs) as their primary source of care. Limited research regarding perceived discrimination and PWUDs' use of health care services exists. This study explores the association between interpersonal and institutional racial/ethnic and drug use discrimination in health care settings and health care u…
Being “hooked up” during a sharp increase in the availability of illicitly manufactured fentanyl
Injection and Heterosexual Risk Behaviors for HIV Infection Among Non-gay Identifying Men Who Have Sex with Men and Women
Alternative kinship structures, resilience and social support among immigrant trans Latinas in the USA
Latinas comprise the largest racial/ethnic group of trans women (male-to-female transgender people) in New York City, where HIV seroprevalence among trans Latinas has been found to be as high as 49%. Despite this population's high risk of HIV, little is known about resilience among trans Latinas that may provide protective health factors. Six focus groups and one in-depth interview were conducted with 34 low-income trans/gender-variant people of …
Hepatitis C incidence and prevalence among Puerto Rican people who use drugs in New York City
Background : Hepatitis C virus (HCV) infection is associated with substantial morbidity and mortality among people who use drugs (PWUD). Health disparities related to race/ethnicity and immigration status also increase the risk of HCV infection and decrease the probability of linkage to care. Effective, curative treatment is now available for HCV infection and, alongside prevention, may eliminate HCV epidemics. Methods : We examined HCV incidence…
Recurrent Injecting Drug Use as a Mediator between Psychiatric Disorder and Non-Fatal Overdose
Background Unintentional drug overdose has increased markedly in the United States. Studies document an association between psychiatric disorder and unintentional overdose; we extend this research through a preliminary test of a causal model of recurrent injection drug use mediating this relationship.Methods In a cross-sectional study of 241 adults in New York City with a possible current substance use disorder, we conducted conventional and Imai…
Field Testing the “Avoid the Needle” Intervention for Persons at Risk for Transitioning to Injecting Drug Use in Tallinn, Estonia and New York City, USA
This study aimed to field tested the "Avoid the Needle" (AtN) intervention to reduce transitions from non-injecting to injecting drug use in two different epidemiological settings. Respondent driven sampling was used to recruit current non-injecting drug users (NIDUs) in Tallinn, Estonia in 2018-19 and in New York City (NYC) in 2019-20. Both persons who had never injected and persons who had previously injected but not in the last 6 months were e…
Understanding intentionality of fentanyl use and drug overdose risk
As the proportion of drug overdose deaths involving fentanyl continues to increase in the US, monitoring exposure to and possible changes in intention to use fentanyl among people who use drugs (PWUD) is of great public health importance. This mixed methods study examines intentionality of fentanyl use among persons who inject drugs (PWID) in New York City during a period of unprecedently high rates of drug overdose mortality. Between October 202…
Naloxone Carriage Among People Who Inject Drugs in New York City
Fentanyl Polysubstance Use Patterns and Their Associations With Hepatitis C Virus, Skin and Soft Tissue Infections, and Non‐Fatal Overdose Among People Who Inject Drugs in New York City
Heroin, Fentanyl, Intentional Fentanyl Use and HIV Transmission in a Community-Recruited Sample of Persons Who Inject Drugs, New York City
Harms associated with injecting in public spaces
Medicine (24 obras) · HIV, Drug Use, Sexual Risk (20 obras) · HIV/AIDS Research and Interventions (12 obras) · Opioid Use Disorder Treatment (11 obras) · Demography (10 obras) · Environmental health (10 obras) · Psychiatry (9 obras) · Psychology (9 obras) · Drug (8 obras) · Gerontology (8 obras)