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  1. Article ; Online: Individual Mobility across Clusters: The Impact of Ignoring Cross-Classified Data Structures in Discrete-Time Survival Analysis.

    Cappelli, Christopher J / Leroux, Audrey J / Masyn, Katherine E

    Multivariate behavioral research

    2023  Volume 59, Issue 1, Page(s) 171–186

    Abstract: A multilevel-discrete time survival model may be appropriate for purely hierarchical data, but when data are non-purely hierarchical due to individual mobility across clusters, a cross-classified discrete time survival model may be necessary. The purpose ...

    Abstract A multilevel-discrete time survival model may be appropriate for purely hierarchical data, but when data are non-purely hierarchical due to individual mobility across clusters, a cross-classified discrete time survival model may be necessary. The purpose of this research was to investigate the performance of a cross-classified discrete-time survival model and assess the impact of ignoring a cross-classified data structure on the model parameters of a conventional discrete-time survival model and a multilevel discrete-time survival model. A Monte Carlo simulation was used to examine the performance of three discrete-time survival models when individuals are mobile across clusters. Simulation factors included the value of the between-clusters variance, number of clusters, within-cluster sample size, Weibull scale parameter, and mobility rate. The results suggest that substantial relative parameter bias, unacceptable coverage of the 95% confidence intervals, and severely biased standard errors are possible for all model parameters when a discrete-time survival model is used that ignores the cross-classified data structure. The findings presented in this study are useful for methodologists and practitioners in educational research, public health, and other social sciences where discrete-time survival analysis is a common methodological technique for analyzing event-history data.
    MeSH term(s) Humans ; Models, Statistical ; Computer Simulation ; Survival Analysis ; Monte Carlo Method ; Multilevel Analysis
    Language English
    Publishing date 2023-09-04
    Publishing country United States
    Document type Journal Article
    ISSN 1532-7906
    ISSN (online) 1532-7906
    DOI 10.1080/00273171.2023.2230481
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Associations among discrimination, psychological functioning, and substance use among US Black adults aged 18-28: Moderation by racial attribution and sex.

    Jones, Dina M / Masyn, Katherine E / Spears, Claire A

    Journal of substance use and addiction treatment

    2023  Volume 153, Page(s) 209080

    Abstract: Introduction: Discrimination is associated with poor mental health and substance use among Black Americans, but research is needed on mediators and moderators of these relationships. This study tested whether: 1) discrimination is associated with ... ...

    Abstract Introduction: Discrimination is associated with poor mental health and substance use among Black Americans, but research is needed on mediators and moderators of these relationships. This study tested whether: 1) discrimination is associated with current alcohol, tobacco (cigarette or e-cigarette), and cannabis use among US Black emerging adults; 2) psychological distress (PD) and positive well-being (PW) are mediators of discrimination-substance use relationships; and 3) these relationships are moderated by sex and attributions to discrimination (racial vs. nonracial).
    Methods: Using data from a 2017 US nationally representative survey, we conducted bivariate and multiple-group moderated mediation analyses among 1118 Black American adults aged 18-28. The study assessed discrimination and attribution to discrimination using the Everyday Discrimination scale, past 30-day PD with the Kessler-6 scale, and past 30-day PW with the Mental Health Continuum Short Form. We utilized probit regression for all structural equation models and adjusted final models for age.
    Results: Discrimination was positively associated with past 30-day cannabis and tobacco use directly and indirectly through PD in the overall model. Among males who reported race as the sole/main attribution to discrimination, discrimination was positively associated with alcohol, cannabis, and tobacco use through PD. Among females who reported race as the sole/main attribution to discrimination, discrimination was positively associated with cannabis use through PD. Discrimination was positively associated with tobacco use among those who reported nonracial attributions to discrimination and with alcohol use among those whose attribution was not assessed. Discrimination was positively associated with PD among those who reported race as a secondary attribution to discrimination.
    Conclusions: Discrimination specifically attributed to race may contribute to greater PD and in turn alcohol, cannabis, and tobacco use among Black emerging adults, especially males. Future substance use prevention and treatment efforts targeted to Black American emerging adults may benefit from addressing racial discrimination and PD.
    MeSH term(s) Adult ; Female ; Humans ; Male ; Black People/psychology ; Black People/statistics & numerical data ; Electronic Nicotine Delivery Systems ; Racism/ethnology ; Racism/psychology ; Racism/statistics & numerical data ; Substance-Related Disorders/epidemiology ; Substance-Related Disorders/ethnology ; Substance-Related Disorders/etiology ; Substance-Related Disorders/psychology ; Black or African American/psychology ; Black or African American/statistics & numerical data ; Adolescent ; Young Adult ; Psychological Distress
    Language English
    Publishing date 2023-05-23
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ISSN 2949-8759
    ISSN (online) 2949-8759
    DOI 10.1016/j.josat.2023.209080
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Discrimination, psychological functioning, and substance use among U.S. young adults aged 18-28, 2017.

    Jones, Dina M / Masyn, Katherine E / Spears, Claire Adams

    Experimental and clinical psychopharmacology

    2021  Volume 30, Issue 6, Page(s) 884–896

    Abstract: This study aimed to test whether (a) discrimination is associated with past 30-day/current alcohol, cigarette, e-cigarette, alcohol, marijuana, and other illicit drug use among Black and White U.S. adults aged 18-28, (b) psychological distress (PD) and ... ...

    Abstract This study aimed to test whether (a) discrimination is associated with past 30-day/current alcohol, cigarette, e-cigarette, alcohol, marijuana, and other illicit drug use among Black and White U.S. adults aged 18-28, (b) psychological distress (PD) and positive well-being (PW) are mediators of the discrimination-substance use relationships, and (c) the associations are moderated by race and sex. Using data from a 2017 U.S. nationally representative survey we conducted multiple-group moderated mediation analyses among 2,192 young adults aged 18-28 (508 Black males, 594 Black females, 533 White males, 557 White females). Black males had higher discrimination, Whites had higher PW, and females had higher PD scores. Discrimination was positively associated with PD and negatively associated with PW. Among all groups, discrimination was positively associated with other illicit drug (direct and indirect), and marijuana use through PD. Indirect effects were stronger among White males for other illicit drugs and Black males for marijuana. The indirect effect of discrimination and alcohol use through PW was positive for Black females and negative for all other groups examined. Among Black males only, discrimination was positively associated with cigarette and alcohol use through PD (positive) and cigarette smoking through PW (negative). This study highlights the negative influence of perceived discrimination on current licit and illicit substance use among Black and White young adults. Our results suggest that this relationship may be partially mediated by PD and PW, especially among Black male young adults. Future discrimination and substance use studies should consider potential mediation effects of poor mental health and differences by race and sex. (PsycInfo Database Record (c) 2022 APA, all rights reserved).
    MeSH term(s) Female ; Male ; Humans ; Young Adult ; Electronic Nicotine Delivery Systems ; Substance-Related Disorders/psychology ; Marijuana Use ; Illicit Drugs ; Cannabis ; Discrimination, Psychological
    Chemical Substances Illicit Drugs
    Language English
    Publishing date 2021-08-16
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1209960-0
    ISSN 1936-2293 ; 1064-1297
    ISSN (online) 1936-2293
    ISSN 1064-1297
    DOI 10.1037/pha0000502
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Discrete-Time Survival Factor Mixture Analysis for Low-Frequency Recurrent Event Histories.

    Masyn, Katherine E

    Research in human development

    2013  Volume 6, Issue 2-3, Page(s) 165–194

    Abstract: In this article, the latent class analysis framework for modeling single event discrete-time survival data is extended to low-frequency recurrent event histories. A partial gap time model, parameterized as a restricted factor mixture model, is presented ... ...

    Abstract In this article, the latent class analysis framework for modeling single event discrete-time survival data is extended to low-frequency recurrent event histories. A partial gap time model, parameterized as a restricted factor mixture model, is presented and illustrated using juvenile offending data. This model accommodates event-specific baseline hazard probabilities and covariate effects; event recurrences within a single time period; and accounts for within- and between-subject correlations of event times. This approach expands the family of latent variable survival models in a way that allows researchers to explicitly address questions about unobserved heterogeneity in the timing of events across the lifespan.
    Language English
    Publishing date 2013-12-30
    Publishing country United States
    Document type Journal Article
    ISSN 1542-7609
    ISSN 1542-7609
    DOI 10.1080/15427600902911270
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Latent classes of aggression and peer victimization: Measurement invariance and differential item functioning across sex, race-ethnicity, cohort, and study site.

    Bettencourt, Amie F / Musci, Rashelle J / Masyn, Katherine E / Farrell, Albert D

    Child development

    2021  Volume 93, Issue 2, Page(s) e117–e134

    Abstract: Peer victimization is common and linked to maladjustment. Prior research has typically identified four peer victimization subgroups: aggressors, victims, aggressive-victims, and uninvolved. However, findings related to sex and racial-ethnic differences ... ...

    Abstract Peer victimization is common and linked to maladjustment. Prior research has typically identified four peer victimization subgroups: aggressors, victims, aggressive-victims, and uninvolved. However, findings related to sex and racial-ethnic differences in subgroup membership have been mixed. Using data collected in September of 2002 and 2003, this study conducted confirmatory latent class analysis of a racially-ethnically diverse sample of 5415 sixth graders (49% boys; 50.6% Black; 20.9% Hispanic) representing two cohorts from 37 schools in four U.S. communities to replicate the four subgroups and evaluate measurement invariance of latent class indicators across cohort, sex, race-ethnicity, and study site. Results replicated the four-class solution and illustrated that sociodemographic differences in subgroup membership were less evident after accounting for differential item functioning.
    MeSH term(s) Aggression ; Bullying ; Crime Victims ; Ethnicity ; Female ; Humans ; Male ; Peer Group
    Language English
    Publishing date 2021-10-22
    Publishing country United States
    Document type Journal Article
    ZDB-ID 215602-7
    ISSN 1467-8624 ; 0009-3920
    ISSN (online) 1467-8624
    ISSN 0009-3920
    DOI 10.1111/cdev.13691
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Individual Differences in the Stability and Change of Childhood Depression: A Growth Mixture Model With Structured Residuals.

    Hawrilenko, Matt / Masyn, Katherine E / Cerutti, Janine / Dunn, Erin C

    Child development

    2021  Volume 92, Issue 4, Page(s) e343–e363

    Abstract: Studies of developmental trajectories of depression are important for understanding depression etiology. Existing studies have been limited by short time frames and no studies have explored a key factor: differential patterns of responding to life events. ...

    Abstract Studies of developmental trajectories of depression are important for understanding depression etiology. Existing studies have been limited by short time frames and no studies have explored a key factor: differential patterns of responding to life events. This article introduces a novel analytic technique, growth mixture modeling with structured residuals, to examine the course of youth depression in a large, prospective cohort (N = 11,641, ages 4-16.5, 96% White). Age-specific critical points were identified at ages 8 and 13 where depression symptoms spiked for a minority of children. Most depression risk was due to dynamic responses to environmental events, drawn not from a small pool of persistently depressed children, but a larger pool of children who varied across higher and lower symptom levels.
    MeSH term(s) Adolescent ; Child ; Child, Preschool ; Cohort Studies ; Depression ; Humans ; Individuality ; Prospective Studies
    Language English
    Publishing date 2021-01-10
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 215602-7
    ISSN 1467-8624 ; 0009-3920
    ISSN (online) 1467-8624
    ISSN 0009-3920
    DOI 10.1111/cdev.13502
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Dyadic effects of minority stress and problematic alcohol use on sexual intimate partner violence in same sex couples.

    Parrott, Dominic J / Bresin, Konrad / Hequembourg, Amy / Velia, Brynne / Swartout, Kevin M / Stappenbeck, Cynthia A / Masyn, Katherine E / Grom, Jessica L

    Aggressive behavior

    2023  Volume 49, Issue 3, Page(s) 198–208

    Abstract: Little is known about the factors that facilitate the perpetration of sexual violence within the context of same-sex romantic relationships (sexual intimate partner violence perpetration [S-IPV]). The present study sought to identify the effects of ... ...

    Abstract Little is known about the factors that facilitate the perpetration of sexual violence within the context of same-sex romantic relationships (sexual intimate partner violence perpetration [S-IPV]). The present study sought to identify the effects of external and internal minority stress and problematic drinking on perpetration of S-IPV within a dyadic framework. A community-based sample of 137 sexual and gender minority (SGM) couples (N = 274; 59 male assigned at birth and 78 female assigned at birth couples) completed self-report surveys about minority stressors, alcohol use, and S-IPV perpetration. Multilevel logistic regression analyses were conducted within an actor-partner interdependence framework. This approach accounted for both actor effects (e.g., how much one's S-IPV perpetration is predicted by their own risk factors) and partner effects (e.g., how much one's S-IPV perpetration is influenced by their partner's risk factors). Both Actor external minority stress and internal minority stress were positively associated with Actor S-IPV perpetration. Actor problematic drinking was not associated with Actor S-IPV perpetration; however, Partner problematic drinking was positively associated with Actor S-IPV perpetration. Observed effects were robust above the addition of other risk factors. This research innovatively extricates S-IPV perpetration from other forms of IPV and indicates that Actor minority stress and Partner problematic drinking increase S-IPV likelihood. Results serve as a starting point for development of etiological models to inform the design of culturally-informed interventions to reduce S-IPV among SGM couples.
    MeSH term(s) Infant, Newborn ; Humans ; Male ; Female ; Intimate Partner Violence ; Sexual Behavior ; Risk Factors ; Gender Identity ; Surveys and Questionnaires ; Sexual Partners
    Language English
    Publishing date 2023-01-24
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ZDB-ID 189812-7
    ISSN 1098-2337 ; 0096-140X
    ISSN (online) 1098-2337
    ISSN 0096-140X
    DOI 10.1002/ab.22072
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Recency measures matter: Variability in reported last use of tobacco and marijuana products among a nationally representative study of U.S. young adults.

    Pike Moore, Stephanie / Masyn, Katherine E / Fryer, Craig / Lee, Eugenia / Gunzler, Douglas / Trapl, Erika / Shang, Ce / Sterling, Kymberle L

    Addictive behaviors

    2023  Volume 144, Page(s) 107746

    Abstract: Introduction: Current use of tobacco and marijuana products is largely defined as use within the past 30-days or more recently. These products are not used in the same manner, frequency, or context especially among young adults who are increasingly at ... ...

    Abstract Introduction: Current use of tobacco and marijuana products is largely defined as use within the past 30-days or more recently. These products are not used in the same manner, frequency, or context especially among young adults who are increasingly at risk for poly-product use. The purpose of this study was to examine patterns of most recent product use across select tobacco and marijuana products.
    Materials and methods: Data used in this study come from a cross-sectional survey conducted among a nationally representative sample of young adults ages 18-34 (n = 1,189) in the U.S. from October-November 2020. Respondents were asked about past product and most recent use of select tobacco/nicotine products (cigarettes, little filtered cigars and cigarillos, large cigars, e-cigarettes, hookah/water pipes) and marijuana products (blunts, e-cigarettes with marijuana, and other products with marijuana).
    Results: A high proportion of young adults reported having used at least one tobacco (79.6%) or marijuana (68.6%) products. There is variability in the distribution of most recent use across different tobacco and marijuana users even within the past 3 to past 6 months where nearly one in five users of any product report last use. The average number of tobacco/nicotine products used as well as concurrent marijuana use were lowest when looking at those whose most recent use was within the past 30-days. As the measures of most recent use became more broad, the number of tobacco/nicotine products used increased as did the prevalence of concurrent marijuana use which extended through the past 6-months.
    Conclusion: Measures of current use may need to be expanded beyond the past 30-days to include through the past 6-months to better encapsulate usage patterns when considering poly-tobacco and marijuana co-use.
    MeSH term(s) Humans ; Young Adult ; Cannabis ; Nicotine ; Electronic Nicotine Delivery Systems ; Cross-Sectional Studies ; Tobacco Products ; Tobacco Use/epidemiology
    Chemical Substances Nicotine (6M3C89ZY6R)
    Language English
    Publishing date 2023-05-03
    Publishing country England
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ZDB-ID 197618-7
    ISSN 1873-6327 ; 0306-4603
    ISSN (online) 1873-6327
    ISSN 0306-4603
    DOI 10.1016/j.addbeh.2023.107746
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: HIV co-infection increases the risk of post-tuberculosis mortality among persons who initiated treatment for drug-resistant tuberculosis.

    Salindri, Argita D / Kipiani, Maia / Lomtadze, Nino / Tukvadze, Nestani / Avaliani, Zaza / Blumberg, Henry M / Masyn, Katherine E / Rothenberg, Richard B / Kempker, Russell R / Magee, Matthew J

    medRxiv : the preprint server for health sciences

    2024  

    Abstract: Little is known regarding the relationship between common comorbidities in persons with tuberculosis (TB) (including human immunodeficiency virus [HIV], diabetes, and hepatitis C virus [HCV]) with post-TB mortality. We conducted a retrospective cohort ... ...

    Abstract Little is known regarding the relationship between common comorbidities in persons with tuberculosis (TB) (including human immunodeficiency virus [HIV], diabetes, and hepatitis C virus [HCV]) with post-TB mortality. We conducted a retrospective cohort study among persons who initiated treatment for rifampicin-resistant and multi/extensively drug-resistant (RR and M/XDR) TB reported to the country of Georgia's TB surveillance during 2009-2017. Exposures included HIV serologic status, diabetes, and HCV status. Our outcome was all-cause post-TB mortality determined by cross-validating vital status with Georgia's death registry through November 2019. We estimated adjusted hazard rate ratios (aHR) and 95% confidence intervals (CI) of post-TB mortality among participants with and without comorbidities using cause-specific hazard regressions. Among 1032 eligible participants, 34 (3.3%) died during treatment and 87 (8.7%) died post-TB treatment. Among those who died post-TB treatment, the median time to death was 21 months (interquartile range 7-39) post-TB treatment. After adjusting for confounders, the hazard rates of post-TB mortality were higher among participants with HIV co-infection (aHR=3.74, 95%CI 1.77-7.91) compared to those without HIV co-infection. In our cohort, post-TB mortality occurred most commonly in the first three years post-TB treatment. Linkage to care for common TB comorbidities post-treatment may reduce post-TB mortality rates.
    Language English
    Publishing date 2024-03-26
    Publishing country United States
    Document type Preprint
    DOI 10.1101/2023.05.19.23290190
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: The Intersection of Alcohol Use, Gender Based Violence and HIV: Empirical Findings among Disadvantaged Service-Seeking Youth in Kampala, Uganda.

    Swahn, Monica H / Culbreth, Rachel / Masyn, Katherine E / Salazar, Laura F / Wagman, Jennifer / Kasirye, Rogers

    AIDS and behavior

    2021  Volume 25, Issue 10, Page(s) 3106–3114

    Abstract: The SAVA syndemic is frequently used to describe the co-occurrence of HIV, gender-based violence (GBV), and substance use. In this study we determine the extent to which the typologies of the SAVA syndemic can be described and utilized for intervention ... ...

    Abstract The SAVA syndemic is frequently used to describe the co-occurrence of HIV, gender-based violence (GBV), and substance use. In this study we determine the extent to which the typologies of the SAVA syndemic can be described and utilized for intervention strategies among youth living in the slums of Kampala, Uganda. We analyzed the "Kampala Youth Survey 2014," a cross-sectional survey conducted in the spring of 2014, consisting of a convenience sample (N = 1134) of urban youth (12-18 years of age). Descriptive statistics were computed for hypothesized risk factors and demographic variables among the 8 typologies of GBV, HIV, and alcohol use. Multinomial logistic regression was conducted to determine statistically significant correlates with each typology. The overall prevalence of GBV was 31.7%, whereas the overall prevalence of alcohol use in the past 12 months was 31.2%. HIV-Positive youth comprised 10.5% of the total sample. Females comprised the majority of the typology with no SAVA components compared to males (55% vs. 45%, respectively), as well as the SAVA syndemic typology (GBV + HIV + ALC +) (58% vs. 42%, respectively). Engaging in commercial sex work (36%), witnessing parental abuse (61%), and depression/suicidality (81%) were all highly prevalent among youth in the SAVA syndemic typology (GBV, HIV, and alcohol use). Sex work and observing parental abuse were associated with the SAVA syndemic typology in the multivariable model. In our study, alcohol rarely coexisted without GBV among the typologies. Therefore, prevention efforts including structural interventions may be particularly warranted in vulnerable populations to address alcohol use, which may directly or indirectly impact GBV and HIV.
    MeSH term(s) Adolescent ; Cross-Sectional Studies ; Female ; Gender-Based Violence ; HIV Infections/epidemiology ; Humans ; Male ; Sex Work ; Uganda/epidemiology ; Vulnerable Populations
    Language English
    Publishing date 2021-05-14
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1339885-4
    ISSN 1573-3254 ; 1090-7165
    ISSN (online) 1573-3254
    ISSN 1090-7165
    DOI 10.1007/s10461-021-03301-0
    Database MEDical Literature Analysis and Retrieval System OnLINE

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