Network


Latest external collaboration on country level. Dive into details by clicking on the dots.

Hotspot


Dive into the research topics where Aleksandar Kecojevic is active.

Publication


Featured researches published by Aleksandar Kecojevic.


Drug and Alcohol Dependence | 2013

Factors associated with history of non-fatal overdose among young nonmedical users of prescription drugs

Karol Silva; Sheree M. Schrager; Aleksandar Kecojevic; Stephen E. Lankenau

OBJECTIVES The current study examines the prevalence and correlates of lifetime non-fatal overdose (OD) involving the nonmedical use of prescription opioids and tranquilizers among a sample of high-risk young adults in New York, NY and Los Angeles, CA. METHODS Data were derived from a cross-sectional study of 16-25 year old nonmedical users of prescription drugs (n=596). Unadjusted associations between OD history and socio-demographic and drug use variables were investigated in bivariate logistic regression models. Multivariate logistic regression models identified correlates of non-fatal OD. RESULTS Lifetime prevalence of non-fatal overdose involving prescription opioids and/or tranquilizers was 23.6%. Factors associated with increased risk of non-fatal overdose included lower social class while growing up (OR: 1.81, 95% CI: [1.15, 2.83], p<0.01), having ever received care at a psychiatric hospital (OR: 1.79, 95% CI: [1.12, 2.85], p<0.05), ever witnessing a family member OD on drugs (OR: 1.59, 95% CI: [1.02, 2.50], p<0.05), being prescribed tranquilizers (OR: 2.07, 95% CI: [1.29, 4.27], p<0.01), ever snorting or sniffing opioids (OR: 2.51, 95% CI: [1.48, 4.27], p<0.001), injecting tranquilizers (OR: 3.09, 95% CI: [1.61, 5.93], p<0.001), and past 90-day injection drug use (OR: 1.68, 95% CI: [1.03, 2.74], p<0.05). Participants who reported past 90-day stimulant misuse had lower odds of reporting OD compared to those who were not recent stimulant users (OR: 0.60, 95% CI: [0.38-0.96], p<0.05). CONCLUSIONS This study documents the high prevalence of experiencing non-fatal overdose among young nonmedical users of prescription drugs. Results could inform overdose prevention efforts throughout the U.S.


Addictive Behaviors | 2012

Initiation into Prescription Drug Misuse: Differences between Lesbian, Gay, Bisexual, Transgender (LGBT) and Heterosexual High-Risk Young Adults in Los Angeles and New York

Aleksandar Kecojevic; Carolyn F. Wong; Sheree M. Schrager; Karol Silva; Jennifer Jackson Bloom; Ellen Iverson; Stephen E. Lankenau

OBJECTIVE Prescription drug misuse is an important public health problem in the U.S., particularly among adolescents and young adults. Few studies have examined factors contributing to initiation into prescription drug misuse, including sexual orientation and childhood abuse and neglect. The purpose of the present study is to investigate the relationship between initiation into the misuse of prescription drugs (opioids, tranquilizers, and stimulants), sexual identity, and individual and family determinants. METHOD Results are based upon data from a cross-sectional survey of 596 youth (polydrug users, homeless youth, and injection drug users) aged 16 to 25 who reported current prescription drug misuse. Participants were recruited in Los Angeles and New York City between 2009 and 2011. We compared initiation behaviors between sexual minority and heterosexual youth and examined factors modifying the relationship between sexual identity and earlier initiation into prescription drug misuse. RESULTS Sexual minority youth were more likely to report histories of initiation into misuse of prescription opioids and tranquilizers. Further, they were more likely to report various types of childhood abuse than heterosexual youth. However, multivariate analyses indicated that age of first prescribed drug was the most significant factor associated with initiation into misuse of all three categories of prescription drugs. CONCLUSIONS The correlates of initiation into prescription drug misuse are multidimensional and offer opportunities for further research. Identifying additional factors contributing to initiation into prescription drug misuse is essential towards developing interventions that may reduce future drug use among young adults.


Drug and Alcohol Dependence | 2013

Coping and emotion regulation profiles as predictors of nonmedical prescription drug and illicit drug use among high-risk young adults

Carolyn F. Wong; Karol Silva; Aleksandar Kecojevic; Sheree M. Schrager; Jennifer Jackson Bloom; Ellen Iverson; Stephen E. Lankenau

BACKGROUND Deficits in the ability to organize, integrate, and modulate emotions, thoughts, and behaviors when dealing with stress have been found to be related to the onset and escalation of substance use among adolescents and young adults. However, limited research has focused on understanding how coping and emotion regulation tendencies might be associated with different patterns of prescription and illicit drug use, particularly among high-risk young adults who may already face additional challenges relative to lower-risk populations. METHODS Young adults aged 16-25 years who had misused prescription drugs within the past 90 days were interviewed in Los Angeles and New York. The current study utilized latent profile analysis to empirically derive coping and emotion regulation typologies/profiles that are then used to predict different patterns of substance use (N=560). RESULTS Four latent classes/groups were identified: (1) suppressors, (2) others-reliant copers, (3) self-reliant copers and (4) active copers. Distinct patterns of prescription and illicit drug misuse were found among different coping/emotion regulation profiles, including differences in age of initiation of opiates, tranquilizers, and illicit drugs, recent injection drug use, substance use-related problems, and past 90-day use of tranquilizers, heroin, and cocaine. Specifically, suppressors and others-reliant copers evidenced more problematic patterns of substance use compared to active copers. CONCLUSION This is among the first studies to show how coping and emotion regulation profiles predict distinct patterns of substance use. Results provide the groundwork for additional investigations that could have significant prevention and clinical implications for substance-using high-risk young adults.


Annals of Emergency Medicine | 2011

Public Health and Clinical Impact of Increasing Emergency Department—Based HIV Testing: Perspectives From the 2007 Conference of the National Emergency Department HIV Testing Consortium

Aleksandar Kecojevic; Christopher J. Lindsell; Michael S. Lyons; David R. Holtgrave; Gretchen Torres; James Heffelfinger; Jeremy Brown; Eileen Couture; Julianna Jung; Samantha Connell; Richard E. Rothman

OBJECTIVE Understanding perceived benefits and disadvantages of HIV testing in emergency departments (EDs) is imperative to overcoming barriers to implementation. We codify those domains of public health and clinical care most affected by implementing HIV testing in EDs, as determined by expert opinion. METHODS Opinions were systematically collected from attendees of the 2007 National ED HIV Testing Consortium meeting. Structured evaluation of strengths, weaknesses, opportunities, and threats analysis was conducted to assess the impact of ED-based HIV testing on public health. A modified Delphi method was used to assess the impact of ED-based HIV testing on clinical care from both individual patient and individual provider perspectives. RESULTS Opinions were provided by 98 experts representing 42 academic and nonacademic institutions. Factors most frequently perceived to affect public health were (strengths) high volume of ED visits and high prevalence of HIV, (weaknesses) undue burden on EDs, (opportunities) reduction of HIV stigma, and (threats) lack of resources in EDs. Diagnostic testing and screening for HIV were considered to have a favorable impact on ED clinical care from both individual patient and individual provider perspectives; however, negative test results were not perceived to have any benefit from the providers perspective. The need for HIV counseling in the ED was considered to have a negative impact on clinical care from the providers perspective. CONCLUSION Experts in ED-based HIV testing perceived expanded ED HIV testing to have beneficial impacts for both the public health and individual clinical care; however, limited resources were frequently cited as a possible impediment. Many issues must be resolved through further study, education, and policy changes if the full potential of HIV testing in EDs is to be realized.


Drug and Alcohol Dependence | 2015

Risk factors for high levels of prescription drug misuse and illicit drug use among substance-using young men who have sex with men (YMSM).

Aleksandar Kecojevic; Carolyn F. Wong; Heather L. Corliss; Stephen E. Lankenau

BACKGROUND Limited research has focused on prescription drug misuse among young men who have sex with men (YMSM), or investigated risk factors contributing to misuse. This study aims to investigate the relationship between multiple psychosocial risk factors (i.e., childhood abuse, discrimination, mental health distress) and prescription drug misuse among YMSM who are current substance users. METHODS YMSM (N=191) who reported prescription drug misuse in the past 6 months were recruited in Philadelphia between 2012 and 2013 to complete an anonymous survey assessing demographic information, substance use, and psychosocial factors. RESULTS High levels of childhood physical abuse and perceived stress were associated with higher opioid misuse, while high levels of depression were associated with lower misuse of opioids. Those with higher levels of perceived stress were more likely to report higher tranquilizer misuse, while those with more experiences of social homophobia/racism and higher levels of depression and somatization reported higher stimulant misuse. Regarding demographic correlates, older participants were more likely than younger participants to report higher opioid misuse, while racial minorities were less likely than White participants to report higher misuse of tranquilizers, stimulants, and illicit drug use. Bisexual/heterosexual/other identified participants were more likely than gay identified participants to report higher misuse of all three classes of prescription drugs. CONCLUSIONS Associations of risk factors with substance use among YMSM are complex and offer opportunities for additional research. Our findings show that prevention efforts must address substance use among YMSM in sync with psychosocial stressors.


Drugs-education Prevention and Policy | 2015

Associations between prescription opioid injection and Hepatitis C virus among young injection drug users

Stephen E. Lankenau; Aleksandar Kecojevic; Karol Silva

Abstract Objective: Hepatitis C virus (HCV) incidence has been increasing among young injection drug users (IDUs). This analysis examined whether the emerging practice of prescription opioid (PO) injection is associated with self-reported HCV among young IDUs. Methods: Young IDUs (n = 162) aged 18–25-years-old who indicated recent misuse of prescription drugs were sampled in New York and Los Angeles during 2009–2011. Participants reported lifetime PO injection history and results from their most recent HCV test as well as demographic characteristics and lifetime drug use. Bivariate analyses examined relationships between covariates and both lifetime PO injection and HCV positivity. Poisson regression examined the associations between lifetime PO injection, HCV positivity, and significant covariates. Results: A majority reported lifetime PO injection (72.2%) and 30.9% self-reported being HCV positive. Lifetime PO injectors were nearly three times more likely to report being HCV positive than non-PO injectors (adjusted incidence rate ratio (AIRR): 2.69, p < 0.05) after controlling for socio-demographic and other drug use variable. Additionally, substituting POs for heroin (AIRR: 2.27, p < 0.05), growing up in a lower social class (AIRR: 1.67, p < 0.05), age (AIRR: 1.12, p < 0.05), age of injection initiation (AIRR: 0.87, p < 0.001), and history of being prescribed stimulants (AIRR: 0.64, p < 0.05) were independently associated with HCV positivity. Conclusions: Findings suggest that PO injection should be given further consideration as a contributing factor to rising HCV infection among young adults in the US.


Journal of Drug Issues | 2013

Perceived Drug Use Functions and Risk Reduction Practices Among High-Risk Nonmedical Users of Prescription Drugs

Karol Silva; Aleksandar Kecojevic; Stephen E. Lankenau

Nonmedical use of prescription drugs has become the fastest growing drug problem in the United States, particularly among young adults. This study examines the reasons young polydrug users misuse prescription drugs, and explores how young users employ risk reduction strategies to minimize adverse consequences. The sample was recruited during 2008 and 2009 in Los Angeles and New York, and comprised 45 nonmedical users of prescription drugs, aged 16 to 25. Data from a semistructured interview were analyzed quantitatively and qualitatively. Participants reported nonmedical use of prescription drugs to change mood, to facilitate activity, and to monitor the intake of other substances. Commonly employed risk reduction strategies included calculating pill timing, dosage, and access, and monitoring frequency of use, particularly when combining different substances. Most study participants often planned drug use to occur within socially acceptable parameters, such that prescription drug misuse was a normalized feature of their everyday lives.


Journal of Addiction | 2014

Correlates and Consequences of Opioid Misuse among High-Risk Young Adults

Sheree M. Schrager; Aleksandar Kecojevic; Karol Silva; Jennifer Jackson Bloom; Ellen Iverson; Stephen E. Lankenau

Background. Prescription opioids are the most frequently misused class of prescription drug among young adults aged 18–25, yet trajectories of opioid misuse and escalation are understudied. We sought to model opioid misuse patterns and relationships between opioid misuse, sociodemographic factors, and other substance uses. Methods. Participants were 575 young adults age 16–25 who had misused opioids in the last 90 days. Latent class analysis was performed with models based on years of misuse, recency of misuse, and alternate modes of administration within the past 12 months, 3 months, and 30 days. Results. Four latent classes emerged that were differentially associated with heroin, cocaine, and methamphetamine use, tranquilizer misuse, daily opioid misuse, and opioid withdrawal. Alternate modes of administering opioids were associated with increased risk for these outcomes. Sociodemographic factors, homelessness, prescription history, and history of parental drug use were significantly associated with riskier opioid misuse trajectories. Conclusion. Young adults who reported more debilitating experiences as children and adolescents misused opioids longer and engaged in higher risk alternate modes of administering opioids. Data on decisions both to use and to alter a drugs form can be combined to describe patterns of misuse over time and predict important risk behaviors.


BMC Infectious Diseases | 2014

Rapid PCR/ESI-MS-based molecular genotyping of Staphylococcus aureus from nasal swabs of emergency department patients

Aleksandar Kecojevic; Ray Ranken; David J. Ecker; Christian Massire; Rangarajan Sampath; Lawrence B. Blyn; Yu Hsiang Hsieh; Richard E. Rothman; Charlotte A. Gaydos

BackgroundA limitation of both culture-based and molecular methods of screening for staphylococcal infection is that current tests determine only the presence or absence of colonization with no information on the colonizing strain type. A technique that couples polymerase chain reaction to mass spectrometry (PCR/ESI-MS) has recently been developed and an assay validated to identify and genotype S. aureus and coagulase-negative staphylococci (CoNS).MethodsThis study was conducted to determine the rates, risk factors, and molecular genotypes of colonizing Staphylococcus aureus in adult patients presenting to an inner-city academic emergency department. Participants completed a structured questionnaire to assess hospital and community risks for infection with methicillin-resistant S. aureus (MRSA). Nasal swabs were analyzed by PCR/ESI-MS to identify and genotype S. aureus and CoNS.ResultsOf 200 patients evaluated, 59 were colonized with S. aureus; 27 of these were methicillin-resistant strains. Twenty-four of the 59 S. aureus carriers were co-colonized with a CoNS and 140 of the 200 patients were colonized exclusively with CoNS. The molecular genotypes of the 59 S. aureus strains were diverse; 21 unique molecular genotypes belonging to seven major clonal complexes were identified. Eighty-five of 200 patients carried strains with high-level mupirocin resistance. Of these eighty-five participants, 4 were colonized exclusively with S. aureus, 16 were co-colonized with S. aureus and CoNS, and 65 were colonized exclusively with CoNS.ConclusionThe prevalence of S. aureus and methicillin-resistant S. aureus colonization in a random sample of patients seeking care in Emergency Department was 29.5% and 13.5%, respectively. A substantial fraction of the S. aureus-colonized patients were co-colonized with CoNS and high-level mupirocin-resistant CoNS. Determining the molecular genotype of S. aureus during intake screening may prove valuable in the future if certain molecular genotypes become associated with increased infection risk.


International journal of adolescent medicine and health | 2018

Examination of YouTube videos related to synthetic cannabinoids.

Fullwood; Aleksandar Kecojevic; Corey H. Basch

Abstract The popularity of synthetic cannabinoids (SCBs) is increasing the chance for adverse health issues in the United States. Moreover, social media platforms such as YouTube that provided a platform for user-generated content can convey misinformation or glorify use of SCBs. The aim of this study was to fill this gap by describing the content of the most popular YouTube videos containing content related to the SCBs. Videos with at least 1000 or more views found under the search terms “K2” and “spice” included in the analysis. The collective number of views was over 7.5 million. Nearly half of videos were consumer produced (n=42). The most common content in the videos was description of K2 (n=69), followed by mentioning dangers of using K2 (n=47), mentioning side effects (n=38) and showing a person using K2 (n=37). One-third of videos (n=34) promoted use of K2, while 22 videos mentioned risk of dying as a consequence of using K2. YouTube could be used as a surveillance tool to combat this epidemic, but instead, the most widely videos related to SCBs are uploaded by consumers. The content of these consumer videos on YouTube often provide the viewer with access to view a wide array of uploaders describing, encouraging, participating and promoting use.

Collaboration


Dive into the Aleksandar Kecojevic's collaboration.

Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar

Corey H. Basch

William Paterson University

View shared research outputs
Top Co-Authors

Avatar

Ellen Iverson

Children's Hospital Los Angeles

View shared research outputs
Top Co-Authors

Avatar

Sheree M. Schrager

Children's Hospital Los Angeles

View shared research outputs
Top Co-Authors

Avatar

Carolyn F. Wong

Children's Hospital Los Angeles

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar

Jennifer Jackson Bloom

Children's Hospital Los Angeles

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar

A. Menafro

William Paterson University

View shared research outputs
Researchain Logo
Decentralizing Knowledge