Helena D Green
Dados Biográficos
| ID | 112251 |
|---|---|
| NOME | Helena D Green |
| PRENOMES | Helena D |
| SOBRENOME | Green |
| ASSINATURA | GREEN H D |
| AFILIAÇÕES | RAND Corporation |
| ORCID | 0000-0003-0740-9178 |
| VERIFICADO | Sim |
| TOTAL DE OBRAS | 49 |
| TOTAL DE CITAÇÕES | 154 |
| TOTAL COMO AUTOR | 49 |
| TOTAL COMO EDITOR | 0 |
| PRIMEIRO ANO DE PUBLICAÇÃO | 2007 |
| ANO MAIS RECENTE DE PUBLICAÇÃO | 2026 |
| ÍNDICE H | 7 |
Longitudinal Correlates of Internalized HIV Stigma Among Ugandan PLWH
Internalized HIV stigma, defined as negative self-perceptions among people living with HIV (PLWH) based on the societal stereotype, is a significant barrier to effective HIV prevention and care in Sub-Saharan Africa. This study examined longitudinal correlates of internalized HIV stigma among PLWH in Uganda. The sample included 105 participants (mean age = 39.3 years (SD = 10.5); 69.5% women). Surveys were conducted at baseline, and 6, 12, and 18…
HIV Disclosure and Prevention Advocacy Partially Mediate Advocacy Training Intervention Effect on Reduced Internalized HIV Stigma
Reduction of internalized HIV stigma is key to increasing HIV disclosure and engagement in peer advocacy for HIV prevention—and these latter processes may also be important for making further inroads into minimizing stigma. We examined mediators of the effect of a peer advocacy training intervention, Game Changers for HIV Prevention (GC-HIV), on reduced internalized HIV stigma among persons living with HIV (PLWH) in Uganda. A randomized controlle…
Examining Intrapersonal and Social Environment Factors Associated with Condom Use and HIV Testing Among Young Adult MSM Living in Beirut, Lebanon
Men who have sex with men (MSM) are disproportionately affected by HIV, particularly in urban Middle Eastern areas like Beirut, Lebanon. Understanding factors influencing HIV prevention, such as condom use and HIV testing is crucial. This study used the Information-Motivation-Behavioral Skills (IMB) Model determinants and explored social environment factors to assess their associations with condomless sex and HIV testing. Model fit was also exami…
Randomized Controlled Trial of Game Changers, a Social Network Intervention for HIV Prevention in Uganda
In Uganda, where HIV prevalence remains above 5% among those aged 15 and older, we conducted a randomized controlled trial of Game Changers, an 8-session peer-facilitated group intervention that empowers people living with HIV (PLHIV) to engage in HIV prevention advocacy with their social network members ("alters"). A total of 210 index PLHIV participants (105 intervention, 105 control) and 599 alters were enrolled; assessments were conducted at …
Characteristics of Received HIV Prevention Advocacy from Persons Living with HIV in Uganda, and Associations with HIV Testing and Condom Use Among Social Network Members
Receiving peer advocacy has been shown to result in increased HIV protective behaviors, but little research has gone beyond assessment of the mere presence of advocacy to examine aspects of advocacy driving these effects. With baseline data from a controlled trial of an advocacy training intervention, we studied characteristics of HIV prevention advocacy received among 599 social network members of persons living with HIV in Uganda and the associ…
Concordance of HIV Prevention Advocacy Reports and its Associations with HIV Protective Behaviors
Peer advocacy can promote HIV protective behaviors, but little is known about the concordance on prevention advocacy(PA) reports between people living with HIV(PLWH) and their social network members. We examined prevalence and correlates of such concordance, and its association with the targeted HIV protective behavior of the social network member. Data were analyzed from 193 PLWH(index participants) and their 599 social network members(alters). …
Network Analysis of Medical Claims Data Suggests Network-Based, Regional Targeting and Intervention Delivery Strategies to Increase Access to Office Based Opioid Treatment (Obot) for Opioid Use Disord…
Opioid overdose and Opioid Use Disorder (OUD) statistics underscore an urgent need to significantly expand access to evidence-based OUD treatment. Office Based Opioid Treatment (OBOT) has proven effective for treating OUD. However, limited access to these treatments persists. Recognizing the need for significant investment in clinical, behavioral, and translational research, the Indiana State Department of Health and Indiana University embarked o…
Assessing the dynamics of PrEP adoption in a national-scale physician network
Health-related social control among U.S. adults ages 30–80
Sources of Learning about Sexual Choking and Their Associations with Perceived Safety and Risk
The lived experiences of rural HIV social workers
HIV service providers are the primary implementers of HIV care services, but rural HIV service providers are under researched. We used an interpretative phenomenological analysis to explore rural HIV service providers' lived experiences of working in HIV care, who work in a rural region of a Midwestern state in the United States. From July to August 2019, 15 HIV service providers participated in a one-hour semi-structured telephone interview that…
Characteristics of Individuals Seen as Sources of Social Support in Populations at Increased Risk for HIV
Association of social network characteristics with HIV knowledge, stigma, and testing
Black and Latina women are disproportionately impacted by HIV/AIDS. Despite existing research linking social networks and HIV risk among men who have sex with men (MSM) and other high-risk populations, little research has examined how ethnic/racial minority women's social networks shape HIV prevention and intervention targets. Using interviews with a sample of 165 predominantly Black and Latina-identifying women from a small city in the Western U…
Association of Condom Use Advocacy with Perceived Condom Use Among Social Network Members
Who Can I Ask? Who Would I Tell? An Egocentric Network Analysis Among a Sample of Women At-Risk to Explore Anticipated Advice Seeking and Disclosure Around Pre-exposure Prophylaxis (PrEP)
Correlates of Medical Mistrust Among Minority Women at Risk for HIV and Their Networks
BACKGROUND: Medical mistrust is a barrier to engaging in HIV prevention and treatment, including testing and adherence to antiretroviral therapy. Research often focuses on how race and experiences of discrimination relate to medical mistrust, overlooking the role that other characteristics may play (e.g., history of physical abuse, diagnosis of mental illness). Furthermore, studies are often restricted to samples of men who have sex with men and …
Patterns of Substance Use and Associations with Mental, Physical, and Social Functioning
Objective: Trends show increased substance use among adults, yet little research on general population samples has examined differential patterns of licit and illicit substance use that can inform prevention and treatment efforts. This study identifies distinct patterns (classes) of substance use among 30- to 80-year olds, identifies demographic subgroups with the highest probability of class memberships, and compares classes on key indicators of…
Associations of social capital with binge drinking in a national sample of adults
Changes in Adult Alcohol Use and Consequences During the Covid-19 Pandemic in the US
This survey study examines individual-level changes in alcohol use in US adults and associated negative consequences, from before to during the coronavirus disease 2019 (COVID-19) pandemic.
A Pilot Test of Game Changers, a Social Network Intervention to Empower People with HIV to be Prevention Advocates in Uganda
Congregational involvement in HIV
The Association Between Condomless Anal Sex and Social Support Among Black Men Who Have Sex With Men (MSM) in Six U.S. Cities
The Co-evolution of Bullying Perpetration, Homophobic Teasing, and a School Friendship Network
Analytic strategies for longitudinal networks with missing data
Unexplored Opportunities
RAND Center for Applied Network Analysis and System Science, RAND Corporation, Santa Monica, CA The author declares no conflict of interest. Reprints: Harold D. Green, Jr, PhD, RAND Center for Applied Network Analysis and System Science, RAND Corporation, 1776 Main Street, Santa Monica, CA 90401. E-mail: [email protected]
Selection and Influence Mechanisms Associated With Marijuana Initiation and Use in Adolescent Friendship Networks
Friends are thought to influence adolescent drug use. However, few studies have examined the role of drugs in friendship selection, which is necessary to draw sound conclusions about influence. This study applied statistical models for social networks to test the contribution of selection and influence to associations in marijuana use among friends in two large high schools ( N = 1,612; M age = 16.4). There was evidence for friend selection based…
The socialization of dominance
Using the framework of social dominance theory, the current investigation tested for the contextual effects of adolescent peer groups on individuals' homophobic and social dominance attitudes. Results from multilevel models indicated that significant differences existed across peer groups on homophobic attitudes. In addition, these differences were accounted for on the basis of the hierarchy-enhancing or -attenuating climate of the group. A group…
Sampling to Reduce Respondent Burden in Personal Network Studies and Its Effect on Estimates of Structural Measures
Recently, researchers have been increasingly interested in collecting personal network data. Collecting this type of data is particularly burdensome on the respondents, who need to elicit the names of alters, answer questions about each alter (network composition), and evaluate the strength of possible relationships among the named alters (network structure). In line with the research of McCarty et al., the authors propose reducing respondent bur…
Medical mistrust among social network members may contribute to antiretroviral treatment nonadherence in African Americans living with HIV
Who Is Supporting Homeless Youth? Predictors of Support in Personal Networks
Homeless youth lack the traditional support networks of their housed peers, which increases their risk for poor health outcomes. Using a multilevel dyadic analytic approach, this study identified characteristics of social contacts, relationships, and social networks associated with the provision of tangible and emotional support to homeless youth (N = 419, M age = 20.09, SD = 2.80). Support providers were likely to be family members, sex-partners…
Measuring Agreement between Egos and Alters
In personal network studies, respondents (egos) are asked to report information about members of their personal network (alters); egos respond based on their perceptions. Previous studies of informant accuracy present a varied picture: Some find egos' reporting on their relationships with alters to be accurate; others do not. In our study of people living with HIV/AIDS in Uganda, egos were asked to invite up to four alters named during their inte…
Social networks, time homeless, and social support
Homeless men are frequently unsheltered and isolated, disconnected from supportive organizations and individuals. However, little research has investigated these men's social networks. We investigate the structure and composition of homeless men's social networks, vis-a-vis short- and long-term homelessness with a sample of men drawn randomly from meal lines on Skid Row in Los Angeles. Men continuously homeless for the past six months display net…
Nonexperts’ Recognition of Structure in Personal Network Data
Network-based interventions are gaining prominence in the treatment of chronic illnesses; however, little is known about what aspects of network structure are easily identified by nonexperts when shown network visualizations. This study examines which structural features are recognizable by nonexperts. Nineteen nonexperts were asked to pile sort 68 network diagrams. Results were analyzed using multidimensional scaling, discriminant analysis, clus…
The Analysis of Duocentric Social Networks
Marriages and other intimate partnerships are facilitated or constrained by the social networks within which they are embedded. To date, methods used to assess the social networks of couples have been limited to global ratings of social network characteristics or network data collected from each partner separately. In the current article, the authors offer new tools for expanding on the existing literature by describing methods of collecting and …
Befriending Risky Peers
Voluntary After‐School Alcohol and Drug Programs for Middle School Youth
Few after-school programs target alcohol and other drug (AOD) use because it is difficult to encourage a diverse group of youth to voluntarily attend. The current study describes attendance at a voluntary after-school program called CHOICE, which targeted AOD use among middle school students. Over 4,000 students across eight schools completed surveys and 15% participated in CHOICE. Analyses indicated that there were some differences between CHOIC…
Resisting Smoking When a Best Friend Smokes
This longitudinal study examines individual differences in the tendency to initiate (N = 4,612) and escalate (N = 2,837) smoking when adolescents gain a best friend who smokes. Potential moderating factors include self-esteem, depression, problem behavior, school and family bonds, and household access to cigarettes. In addition to acquiring a smoking best friend, initiation was predicted by trouble at school, household access, poorer grades and d…
Sources of Learning about Sexual Choking and Their Associations with Perceived Safety and Risk
Associations of social capital with binge drinking in a national sample of adults
The Co-evolution of Bullying Perpetration, Homophobic Teasing, and a School Friendship Network
Association of Internalized and Social Network Level HIV Stigma With High-Risk Condomless Sex Among HIV-Positive African American Men
Health implications of social networks for children living in public housing
The Impact of Public Housing on Social Networks
Objectives. We assessed whether 2 types of public housing—scattered among market-rate housing developments or clustered in small public housing projects—were associated with the perceived health and health behaviors of residents’ social networks. Methods. Leveraging a natural experiment in Montgomery County, Maryland, in which residents were randomly assigned to different types of public housing, we surveyed 453 heads of household in 2011. We ask…
Anthropology and the Cognitive Challenge
Congregational involvement in HIV
Intergenerational Social Networks and Health Behaviors Among Children Living in Public Housing
Objectives. In a survey of families living in public housing, we investigated whether caretakers’ social networks are linked with children’s health status. Methods. In 2011, 209 children and their caretakers living in public housing in suburban Montgomery County, Maryland, were surveyed regarding their health and social networks. We used logistic regression models to examine the associations between the perceived health composition of caretaker s…
Statistical analysis of friendship patterns and bullying behaviors among youth
The authors use p* modeling to explore connections between network structures and social influence in a seventh-grade friendship network. Specifically, p* parameters reveal how bullying perpetration, dyads, triads, and more complex group structures contribute to network formation, providing fine-level detail about the operation of internal peer group structures
The socialization of dominance
Using the framework of social dominance theory, the current investigation tested for the contextual effects of adolescent peer groups on individuals' homophobic and social dominance attitudes. Results from multilevel models indicated that significant differences existed across peer groups on homophobic attitudes. In addition, these differences were accounted for on the basis of the hierarchy-enhancing or -attenuating climate of the group. A group…
Unprotected Sex of Homeless Women Living in Los Angeles County
Social Networks of PLHA in Uganda
Sampling to Reduce Respondent Burden in Personal Network Studies and Its Effect on Estimates of Structural Measures
Recently, researchers have been increasingly interested in collecting personal network data. Collecting this type of data is particularly burdensome on the respondents, who need to elicit the names of alters, answer questions about each alter (network composition), and evaluate the strength of possible relationships among the named alters (network structure). In line with the research of McCarty et al., the authors propose reducing respondent bur…
Behavioral Health and Social Normative Influence
Substance Use and Other Risk Factors for Unprotected Sex
Resisting Smoking When a Best Friend Smokes
This longitudinal study examines individual differences in the tendency to initiate (N = 4,612) and escalate (N = 2,837) smoking when adolescents gain a best friend who smokes. Potential moderating factors include self-esteem, depression, problem behavior, school and family bonds, and household access to cigarettes. In addition to acquiring a smoking best friend, initiation was predicted by trouble at school, household access, poorer grades and d…
Nonexperts’ Recognition of Structure in Personal Network Data
Network-based interventions are gaining prominence in the treatment of chronic illnesses; however, little is known about what aspects of network structure are easily identified by nonexperts when shown network visualizations. This study examines which structural features are recognizable by nonexperts. Nineteen nonexperts were asked to pile sort 68 network diagrams. Results were analyzed using multidimensional scaling, discriminant analysis, clus…
Unprotected Sex of Homeless Youth
Who Is Supporting Homeless Youth? Predictors of Support in Personal Networks
Homeless youth lack the traditional support networks of their housed peers, which increases their risk for poor health outcomes. Using a multilevel dyadic analytic approach, this study identified characteristics of social contacts, relationships, and social networks associated with the provision of tangible and emotional support to homeless youth (N = 419, M age = 20.09, SD = 2.80). Support providers were likely to be family members, sex-partners…
Voluntary After‐School Alcohol and Drug Programs for Middle School Youth
Few after-school programs target alcohol and other drug (AOD) use because it is difficult to encourage a diverse group of youth to voluntarily attend. The current study describes attendance at a voluntary after-school program called CHOICE, which targeted AOD use among middle school students. Over 4,000 students across eight schools completed surveys and 15% participated in CHOICE. Analyses indicated that there were some differences between CHOIC…
Selection and Influence Mechanisms Associated With Marijuana Initiation and Use in Adolescent Friendship Networks
Friends are thought to influence adolescent drug use. However, few studies have examined the role of drugs in friendship selection, which is necessary to draw sound conclusions about influence. This study applied statistical models for social networks to test the contribution of selection and influence to associations in marijuana use among friends in two large high schools ( N = 1,612; M age = 16.4). There was evidence for friend selection based…
Social networks, time homeless, and social support
Homeless men are frequently unsheltered and isolated, disconnected from supportive organizations and individuals. However, little research has investigated these men's social networks. We investigate the structure and composition of homeless men's social networks, vis-a-vis short- and long-term homelessness with a sample of men drawn randomly from meal lines on Skid Row in Los Angeles. Men continuously homeless for the past six months display net…
The Impact of Public Housing on Social Networks
Objectives. We assessed whether 2 types of public housing—scattered among market-rate housing developments or clustered in small public housing projects—were associated with the perceived health and health behaviors of residents’ social networks. Methods. Leveraging a natural experiment in Montgomery County, Maryland, in which residents were randomly assigned to different types of public housing, we surveyed 453 heads of household in 2011. We ask…
Measuring Agreement between Egos and Alters
In personal network studies, respondents (egos) are asked to report information about members of their personal network (alters); egos respond based on their perceptions. Previous studies of informant accuracy present a varied picture: Some find egos' reporting on their relationships with alters to be accurate; others do not. In our study of people living with HIV/AIDS in Uganda, egos were asked to invite up to four alters named during their inte…
Anthropology and the Cognitive Challenge
Do People Know I’m Poz
Health implications of social networks for children living in public housing
Intergenerational Social Networks and Health Behaviors Among Children Living in Public Housing
Objectives. In a survey of families living in public housing, we investigated whether caretakers’ social networks are linked with children’s health status. Methods. In 2011, 209 children and their caretakers living in public housing in suburban Montgomery County, Maryland, were surveyed regarding their health and social networks. We used logistic regression models to examine the associations between the perceived health composition of caretaker s…
Befriending Risky Peers
The Analysis of Duocentric Social Networks
Marriages and other intimate partnerships are facilitated or constrained by the social networks within which they are embedded. To date, methods used to assess the social networks of couples have been limited to global ratings of social network characteristics or network data collected from each partner separately. In the current article, the authors offer new tools for expanding on the existing literature by describing methods of collecting and …
Association of Internalized and Social Network Level HIV Stigma With High-Risk Condomless Sex Among HIV-Positive African American Men
Medical mistrust among social network members may contribute to antiretroviral treatment nonadherence in African Americans living with HIV
Analytic strategies for longitudinal networks with missing data
Psychology (42 obras) · Medicine (32 obras) · Social Psychology (25 obras) · Public health (23 obras) · HIV/AIDS Research and Interventions (20 obras) · Social Psychology (20 obras) · Adolescent Sexual and Reproductive Health (19 obras) · Health psychology (19 obras) · Clinical Psychology (15 obras) · Psychiatry (15 obras)