Nickolas D. Zaller
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Previous Organizations / Institutes
The organizations / institutes from the scholar's other articles in the past ten years
Research Subjects
Research Interests
Nickolas D. Zaller has a total of 57 co-authors. Here are the top co-authors by number of shared publications:
Josiah D. Rich
The Miriam Hospital, Providence, RI
7 shared publicationsMichael A. Yokell
Stanford University School of Medicine, Stanford, California, USA
4 shared publications- Alexander Reza Bazazi
Department of Psychiatry and Behavioral Sciences University of California, San Francisco San Francisco California USA
3 shared publications - Josiah D. Rich
Department of Epidemiology Brown University School of Public Health Providence RI USA
3 shared publications Patricia Case
The Fenway Institute, Boston, Massachusetts, USA
3 shared publicationsAlexandra Jeronimo
The Alpert Medical School of Brown University, Providence, USA
2 shared publications
Latest Publications
- 13 August 2014
- Published by Springer Nature in Journal of Immigrant and Minority Health
- Vol. 17 (5) , 1322-1329
The Impact of Healthcare Access on Knowledge and Willingness for HIV Testing in Chinese Female Entertainment Workers
Chinese female entertainment workers are at high risk for HIV. We assessed the impact of healthcare access on HIV knowledge, condom use, and their willingness to receive HIV testing. We surveyed 257 entertainment workers in a cross-sectional study. Demographic, knowledge, and behavioral risk factors were examined. Of 257 women, 107 (42.1 %) reported inconsistent condom use. Only 9 % had prior HIV testing. Their HIV knowledge was generally poor. Having access to healthcare, being able to obtain condoms, and managers providing health information were associated with consistent condom use (all P < 0.01). Having access to healthcare was related to previous HIV testing (P < 0.01). Our study showed that having a doctor and access to healthcare had positive effects on HIV knowledge and likelihood of condom use and previous HIV testing. Chinese medical providers can play a significant role in encouraging HIV testing and outreach in migrant women employed at entertainment venues.
- 13 August 2014
- Published by Springer Nature in Journal of Immigrant and Minority Health
- Vol. 17 (5) , 1322-1329
The Impact of Healthcare Access on Knowledge and Willingness for HIV Testing in Chinese Female Entertainment Workers
Chinese female entertainment workers are at high risk for HIV. We assessed the impact of healthcare access on HIV knowledge, condom use, and their willingness to receive HIV testing. We surveyed 257 entertainment workers in a cross-sectional study. Demographic, knowledge, and behavioral risk factors were examined. Of 257 women, 107 (42.1 %) reported inconsistent condom use. Only 9 % had prior HIV testing. Their HIV knowledge was generally poor. Having access to healthcare, being able to obtain condoms, and managers providing health information were associated with consistent condom use (all P < 0.01). Having access to healthcare was related to previous HIV testing (P < 0.01). Our study showed that having a doctor and access to healthcare had positive effects on HIV knowledge and likelihood of condom use and previous HIV testing. Chinese medical providers can play a significant role in encouraging HIV testing and outreach in migrant women employed at entertainment venues.
- Open Access
- 22 January 2014
- Published by Oxford University Press (OUP) in Alcohol and Alcoholism
- Vol. 49 (3) , 321-326
Risky Alcohol Use Among Migrant Women in Entertainment Venues in China
Aims: The aims of this study are to describe the prevalence of hazardous drinking among migrant women working in entertainment venues in an urban setting in China and to identify specific risk factors and locations where hazardous drinking occurs. Methods: From March to July 2012, we conducted a cross-sectional survey of 358 young migrant women working in entertainment venues in the capital city of Hefei, Anhui Province, China. Participants were asked about information regarding their demographic characteristics, sexual behavior, mental health, alcohol use and drug use. Results: Overall, 203 (57%) participants had an AUDIT score ≥8 (risky drinking) and 95 (27%) women had an AUDIT ≥16 (probable dependence). Greater likelihood of probable alcohol dependence was associated with being younger (OR = 0.85, 95% CI: 0.76–0.95), working at an affluent venue (OR = 2.46, 95% CI: 1.13–5.36) and depressive symptoms during the past week (OR = 2.74, 95% CI = 1.10–6.83). Conclusion: Our study documents risky drinking practices among female migrants, irrespective of whether or not women reported engaging in commercial sex, working in entertainment venues. Our data suggest that entertainment venues, particularly those that are higher end (i.e. affluent) venues, should be targeted for public health interventions aimed to reduce harmful drinking practices.
- 22 January 2014
- Published by Oxford University Press (OUP) in Alcohol and Alcoholism
- Vol. 49 (3) , 321-326
Open AccessRisky Alcohol Use Among Migrant Women in Entertainment Venues in China
Aims: The aims of this study are to describe the prevalence of hazardous drinking among migrant women working in entertainment venues in an urban setting in China and to identify specific risk factors and locations where hazardous drinking occurs. Methods: From March to July 2012, we conducted a cross-sectional survey of 358 young migrant women working in entertainment venues in the capital city of Hefei, Anhui Province, China. Participants were asked about information regarding their demographic characteristics, sexual behavior, mental health, alcohol use and drug use. Results: Overall, 203 (57%) participants had an AUDIT score ≥8 (risky drinking) and 95 (27%) women had an AUDIT ≥16 (probable dependence). Greater likelihood of probable alcohol dependence was associated with being younger (OR = 0.85, 95% CI: 0.76–0.95), working at an affluent venue (OR = 2.46, 95% CI: 1.13–5.36) and depressive symptoms during the past week (OR = 2.74, 95% CI = 1.10–6.83). Conclusion: Our study documents risky drinking practices among female migrants, irrespective of whether or not women reported engaging in commercial sex, working in entertainment venues. Our data suggest that entertainment venues, particularly those that are higher end (i.e. affluent) venues, should be targeted for public health interventions aimed to reduce harmful drinking practices.
- 1 December 2013
- Published by Elsevier in Drug and Alcohol Dependence
- Vol. 133 (2) , 677-684
Law enforcement attitudes toward overdose prevention and response
- 1 December 2013
- Published by Elsevier in Drug and Alcohol Dependence
- Vol. 133 (2) , 677-684
Law enforcement attitudes toward overdose prevention and response
- 1 August 2013
- Published by Elsevier in Journal of Substance Abuse Treatment
- Vol. 45 (2) , 222-226
Initiation of buprenorphine during incarceration and retention in treatment upon release
- 1 August 2013
- Published by Elsevier in Journal of Substance Abuse Treatment
- Vol. 45 (2) , 222-226
Initiation of buprenorphine during incarceration and retention in treatment upon release
- 10 June 2013
- Published by Taylor & Francis in Substance Use & Misuse
- Vol. 48 (8) , 590-599
The Feasibility of Pharmacy-Based Naloxone Distribution Interventions: A Qualitative Study With Injection Drug Users and Pharmacy Staff in Rhode Island
This study analyzed qualitative data from a Rapid Policy Assessment and Response project to assess the feasibility of a potential pharmacy-based naloxone intervention to reduce opioid overdose mortality among injection drug users (IDUs). We conducted in-depth, semistructured interviews with 21 IDUs and 21 pharmacy staff (pharmacists and technicians). Although most participants supported the idea of a pharmacy-based naloxone intervention, several barriers were identified, including misinformation about naloxone, interpersonal relationships between IDUs and pharmacy staff, and costs of such an intervention. Implications for future pharmacy-based overdose prevention interventions for IDUs, including pharmacy-based naloxone distribution, are considered. The study's limitations are noted.
- 10 June 2013
- Published by Taylor & Francis in Substance Use & Misuse
- Vol. 48 (8) , 590-599
The Feasibility of Pharmacy-Based Naloxone Distribution Interventions: A Qualitative Study With Injection Drug Users and Pharmacy Staff in Rhode Island
This study analyzed qualitative data from a Rapid Policy Assessment and Response project to assess the feasibility of a potential pharmacy-based naloxone intervention to reduce opioid overdose mortality among injection drug users (IDUs). We conducted in-depth, semistructured interviews with 21 IDUs and 21 pharmacy staff (pharmacists and technicians). Although most participants supported the idea of a pharmacy-based naloxone intervention, several barriers were identified, including misinformation about naloxone, interpersonal relationships between IDUs and pharmacy staff, and costs of such an intervention. Implications for future pharmacy-based overdose prevention interventions for IDUs, including pharmacy-based naloxone distribution, are considered. The study's limitations are noted.
- Open Access
- 15 March 2013
- Published by Wolters Kluwer Health in Hepatology
- Vol. 58 (4) , 1215-1224
Incidence and prevalence of hepatitis C in prisons and other closed settings: Results of a systematic review and meta-analysis
People detained in prisons and other closed settings are at elevated risk of infection with hepatitis C virus (HCV). We undertook a systematic review and meta-analysis with the aim of determining the rate of incident HCV infection and the prevalence of anti-HCV among detainees in closed settings. We systematically searched databases of peer-reviewed literature and widely distributed a call for unpublished data. We calculated summary estimates of incidence and prevalence among general population detainees and detainees with a history of injection drug use (IDU), and explored heterogeneity through stratification and meta-regression. The summary prevalence estimates were used to estimate the number of anti-HCV positive prisoners globally. HCV incidence among general detainees was 1.4 per 100 person-years (py; 95% confidence interval [CI]: 0.1, 2.7; k = 4), and 16.4 per 100 py (95% CI: 0.8, 32.1; k = 3) among detainees with a history of IDU. The summary prevalence estimate of anti-HCV in general detainees was 26% (95% CI: 23%, 29%; k = 93), and in detainees with a history of IDU, 64% (95% CI: 58%, 70%; k = 51). The regions of highest prevalence were Central Asia (38%; 95% CI 32%, 43%; k = 1) and Australasia (35%; 95% CI: 28%, 43%; k = 9). We estimate that 2.2 million (range: 1.4-2.9 million) detainees globally are anti-HCV positive, with the largest populations in North America (668,500; range: 553,500-784,000) and East and Southeast Asia (638,000; range: 332,000-970,000). Conclusion : HCV is a significant concern in detained populations, with one in four detainees anti-HCV-positive. Epidemiological data on the extent of HCV infection in detained populations is lacking in many countries. Greater attention towards prevention, diagnosis, and treatment of HCV infection among detained populations is urgently required. (Hepatology 2013;58:1215–1224)
- 15 March 2013
- Published by Wolters Kluwer Health in Hepatology
- Vol. 58 (4) , 1215-1224
Open AccessIncidence and prevalence of hepatitis C in prisons and other closed settings: Results of a systematic review and meta-analysis
People detained in prisons and other closed settings are at elevated risk of infection with hepatitis C virus (HCV). We undertook a systematic review and meta-analysis with the aim of determining the rate of incident HCV infection and the prevalence of anti-HCV among detainees in closed settings. We systematically searched databases of peer-reviewed literature and widely distributed a call for unpublished data. We calculated summary estimates of incidence and prevalence among general population detainees and detainees with a history of injection drug use (IDU), and explored heterogeneity through stratification and meta-regression. The summary prevalence estimates were used to estimate the number of anti-HCV positive prisoners globally. HCV incidence among general detainees was 1.4 per 100 person-years (py; 95% confidence interval [CI]: 0.1, 2.7; k = 4), and 16.4 per 100 py (95% CI: 0.8, 32.1; k = 3) among detainees with a history of IDU. The summary prevalence estimate of anti-HCV in general detainees was 26% (95% CI: 23%, 29%; k = 93), and in detainees with a history of IDU, 64% (95% CI: 58%, 70%; k = 51). The regions of highest prevalence were Central Asia (38%; 95% CI 32%, 43%; k = 1) and Australasia (35%; 95% CI: 28%, 43%; k = 9). We estimate that 2.2 million (range: 1.4-2.9 million) detainees globally are anti-HCV positive, with the largest populations in North America (668,500; range: 553,500-784,000) and East and Southeast Asia (638,000; range: 332,000-970,000). Conclusion : HCV is a significant concern in detained populations, with one in four detainees anti-HCV-positive. Epidemiological data on the extent of HCV infection in detained populations is lacking in many countries. Greater attention towards prevention, diagnosis, and treatment of HCV infection among detained populations is urgently required. (Hepatology 2013;58:1215–1224)
- 19 March 2012
- Published by Springer Nature in Journal of Urban Health
- Vol. 89 (4) , 659-670
Syringe Acquisition Experiences and Attitudes among Injection Drug Users Undergoing Short-Term Opioid Detoxification in Massachusetts and Rhode Island
Access to sterile syringes for injection drug users (IDUs) is a critical part of a comprehensive strategy to combat the transmission of HIV, hepatitis C virus, and other bloodborne pathogens. Understanding IDUs’ experiences and attitudes about syringe acquisition is crucial to ensuring adequate syringe supply and access for this population. This study sought to assess and compare IDUs’ syringe acquisition experiences and attitudes and HIV risk behavior in two neighboring states, Massachusetts (MA) and Rhode Island (RI). From March 2008 to May 2009, we surveyed 150 opioid IDUs at detoxification facilities in MA and RI, stratified the sample based on where respondents spent most of their time, and generated descriptive statistics to compare responses among the two groups. A large proportion of our participants (83%) reported pharmacies as a source of syringe in the last 6 months, while only 13% reported syringe exchange programs (SEPs) as a syringe source. Although 91% of our sample reported being able to obtain all of the syringes they needed in the past 6 months, 49% had used syringes or injection equipment previously used by someone else in that same time period. In comparison to syringe acquisition behaviors reported by patients of the same detoxification centers in 2001–2003 (data reported in previous publication), we found notable changes among MA participants. Our results reveal that some IDUs in our sample are still practicing high-risk injection behaviors, indicating a need for expanded and renewed efforts to promote safer injection behavior among IDUs. Our findings also indicate that pharmacies have become an important syringe source for IDUs and may represent a new and important setting in which IDUs can be engaged in a wide array of health services. Efforts should be made to involve pharmacists in providing harm reduction and HIV prevention services to IDUs. Finally, despite limited SEP access (especially in MA), SEPs are still used by approximately one of the three IDUs in our overall sample.
- 19 March 2012
- Published by Springer Nature in Journal of Urban Health
- Vol. 89 (4) , 659-670
Syringe Acquisition Experiences and Attitudes among Injection Drug Users Undergoing Short-Term Opioid Detoxification in Massachusetts and Rhode Island
Access to sterile syringes for injection drug users (IDUs) is a critical part of a comprehensive strategy to combat the transmission of HIV, hepatitis C virus, and other bloodborne pathogens. Understanding IDUs’ experiences and attitudes about syringe acquisition is crucial to ensuring adequate syringe supply and access for this population. This study sought to assess and compare IDUs’ syringe acquisition experiences and attitudes and HIV risk behavior in two neighboring states, Massachusetts (MA) and Rhode Island (RI). From March 2008 to May 2009, we surveyed 150 opioid IDUs at detoxification facilities in MA and RI, stratified the sample based on where respondents spent most of their time, and generated descriptive statistics to compare responses among the two groups. A large proportion of our participants (83%) reported pharmacies as a source of syringe in the last 6 months, while only 13% reported syringe exchange programs (SEPs) as a syringe source. Although 91% of our sample reported being able to obtain all of the syringes they needed in the past 6 months, 49% had used syringes or injection equipment previously used by someone else in that same time period. In comparison to syringe acquisition behaviors reported by patients of the same detoxification centers in 2001–2003 (data reported in previous publication), we found notable changes among MA participants. Our results reveal that some IDUs in our sample are still practicing high-risk injection behaviors, indicating a need for expanded and renewed efforts to promote safer injection behavior among IDUs. Our findings also indicate that pharmacies have become an important syringe source for IDUs and may represent a new and important setting in which IDUs can be engaged in a wide array of health services. Efforts should be made to involve pharmacists in providing harm reduction and HIV prevention services to IDUs. Finally, despite limited SEP access (especially in MA), SEPs are still used by approximately one of the three IDUs in our overall sample.
- 1 September 2011
- Published by Wolters Kluwer Health in Journal of Addiction Medicine
- Vol. 5 (3) , 175-180
Illicit Use of Buprenorphine/Naloxone Among Injecting and Noninjecting Opioid Users
Objectives: We examined the use, procurement, and motivations for the use of diverted buprenorphine/naloxone among injecting and noninjecting opioid users in an urban area. Methods: A survey was self-administered among 51 injecting opioid users and 49 noninjecting opioid users in Providence, RI. Participants were recruited from a fixed-site syringe exchange program and a community outreach site between August and November 2009. Results: A majority (76%) of participants reported having obtained buprenorphine/naloxone illicitly, with 41% having done so in the previous month. More injection drug users (IDUs) than non-IDUs reported the use of diverted buprenorphine/naloxone (86% vs 65%, P = 0.01). The majority of participants who had used buprenorphine/naloxone reported doing so to treat opioid withdrawal symptoms (74%) or to stop using other opioids (66%) or because they could not afford drug treatment (64%). More IDUs than non-IDUs reported using diverted buprenorphine/naloxone for these reasons. Significantly more non-IDUs than IDUs reported ever using buprenorphine/naloxone to “get high” (69% vs 32%, P < 0.01). The majority of respondents, both IDUs and non-IDUs, were interested in receiving treatment for opioid dependence, with greater reported interest in buprenorphine/naloxone than in methadone. Common reasons given for not being currently enrolled in a buprenorphine/naloxone program included cost and unavailability of prescribing physicians. Conclusions: The use of diverted buprenorphine/naloxone was common in our sample. However, many opioid users, particularly IDUs, were using diverted buprenorphine/naloxone for reasons consistent with its therapeutic purpose, such as alleviating opioid withdrawal symptoms and reducing the use of other opioids. These findings highlight the need to explore the full impact of buprenorphine/naloxone diversion and improve the accessibility of buprenorphine/naloxone through licensed treatment providers.
- 1 September 2011
- Published by Wolters Kluwer Health in Journal of Addiction Medicine
- Vol. 5 (3) , 175-180
Illicit Use of Buprenorphine/Naloxone Among Injecting and Noninjecting Opioid Users
Objectives: We examined the use, procurement, and motivations for the use of diverted buprenorphine/naloxone among injecting and noninjecting opioid users in an urban area. Methods: A survey was self-administered among 51 injecting opioid users and 49 noninjecting opioid users in Providence, RI. Participants were recruited from a fixed-site syringe exchange program and a community outreach site between August and November 2009. Results: A majority (76%) of participants reported having obtained buprenorphine/naloxone illicitly, with 41% having done so in the previous month. More injection drug users (IDUs) than non-IDUs reported the use of diverted buprenorphine/naloxone (86% vs 65%, P = 0.01). The majority of participants who had used buprenorphine/naloxone reported doing so to treat opioid withdrawal symptoms (74%) or to stop using other opioids (66%) or because they could not afford drug treatment (64%). More IDUs than non-IDUs reported using diverted buprenorphine/naloxone for these reasons. Significantly more non-IDUs than IDUs reported ever using buprenorphine/naloxone to “get high” (69% vs 32%, P < 0.01). The majority of respondents, both IDUs and non-IDUs, were interested in receiving treatment for opioid dependence, with greater reported interest in buprenorphine/naloxone than in methadone. Common reasons given for not being currently enrolled in a buprenorphine/naloxone program included cost and unavailability of prescribing physicians. Conclusions: The use of diverted buprenorphine/naloxone was common in our sample. However, many opioid users, particularly IDUs, were using diverted buprenorphine/naloxone for reasons consistent with its therapeutic purpose, such as alleviating opioid withdrawal symptoms and reducing the use of other opioids. These findings highlight the need to explore the full impact of buprenorphine/naloxone diversion and improve the accessibility of buprenorphine/naloxone through licensed treatment providers.
- Top Cited Papers
- 1 March 2011
- Published by Bentham Science Publishers Ltd. in Current Drug Abuse Reviews
- Vol. 4 (1) , 28-41
Buprenorphine and Buprenorphine/Naloxone Diversion, Misuse, and Illicit Use: An International Review
The diversion, misuse, and non-medically supervised use of buprenorphine and buprenorphine/naloxone by opioid users are reviewed. Buprenorphine and buprenorphine/naloxone are used globally as opioid analgesics and in the treatment of opioid dependency. Diversion of buprenorphine and buprenorphine/naloxone represents a complex medical and social issue, and has been widely documented in various geographical regions throughout the world. We first discuss the clinical properties of buprenorphine and its abuse potential. Second, we discuss its diversion and illicit use on an international level, as well as motivations for those activities. Third, we examine the medical risks and benefits of buprenorphines non-medically supervised use and misuse. These risks and benefits include the effect of buprenorphines use on HIV risk and the risk of its concomitant use with other medications and drugs of abuse. Finally, we discuss the implications of diversion, misuse, and non-medically supervised use (including potential measures to address issues of diversion); and potential areas for further research.
- 1 March 2011
- Published by Bentham Science Publishers Ltd. in Current Drug Abuse Reviews
- Vol. 4 (1) , 28-41
Top Cited PapersBuprenorphine and Buprenorphine/Naloxone Diversion, Misuse, and Illicit Use: An International Review
The diversion, misuse, and non-medically supervised use of buprenorphine and buprenorphine/naloxone by opioid users are reviewed. Buprenorphine and buprenorphine/naloxone are used globally as opioid analgesics and in the treatment of opioid dependency. Diversion of buprenorphine and buprenorphine/naloxone represents a complex medical and social issue, and has been widely documented in various geographical regions throughout the world. We first discuss the clinical properties of buprenorphine and its abuse potential. Second, we discuss its diversion and illicit use on an international level, as well as motivations for those activities. Third, we examine the medical risks and benefits of buprenorphines non-medically supervised use and misuse. These risks and benefits include the effect of buprenorphines use on HIV risk and the risk of its concomitant use with other medications and drugs of abuse. Finally, we discuss the implications of diversion, misuse, and non-medically supervised use (including potential measures to address issues of diversion); and potential areas for further research.
- Open Access
- 15 January 2011
- Published by Oxford University Press (OUP) in Clinical Infectious Diseases
- Vol. 52 (suppl_2) , S223-S230
Linkage to Care for HIV-Infected Heterosexual Men in the United States
In the United States, the human immunodeficiency virus (HIV) epidemic among heterosexual men disproportionately affects individuals involved with the criminal justice system, injection drug and other substance users, and racial and ethnic minorities. These overlapping populations confront similar social and structural disparities that contribute to HIV risk and limit access to HIV testing, treatment, and care. In this review, we discuss barriers to linkage to comprehensive HIV care for specific subpopulations of heterosexual men and examine approaches for enhancing linkage to care for this diverse population.
- 15 January 2011
- Published by Oxford University Press (OUP) in Clinical Infectious Diseases
- Vol. 52 (suppl_2) , S223-S230
Open AccessLinkage to Care for HIV-Infected Heterosexual Men in the United States
In the United States, the human immunodeficiency virus (HIV) epidemic among heterosexual men disproportionately affects individuals involved with the criminal justice system, injection drug and other substance users, and racial and ethnic minorities. These overlapping populations confront similar social and structural disparities that contribute to HIV risk and limit access to HIV testing, treatment, and care. In this review, we discuss barriers to linkage to comprehensive HIV care for specific subpopulations of heterosexual men and examine approaches for enhancing linkage to care for this diverse population.