Browsing by Author "Ellen, Jonathan M."

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    Are social organizational factors independently associated with a current bacterial sexually transmitted infection among urban adolescents and young adults?
    (Elsevier, 2014-10) Jennings, Jacky M.; Hensel, Devon J.; Tanner, Amanda E.; Reilly, Meredith L.; Ellen, Jonathan M.; Department of Pediatrics, IU School of Medicine
    This study explored the relationship between the social organization of neighborhoods including informal social control and social cohesion and a current bacterial sexually transmitted infection (STI) among adolescents and young adults in one U.S. urban setting. Data for the current study were collected from April 2004 to April 2007 in a cross-sectional household study. The target population included English-speaking, sexually-active persons between the ages of 15 and 24 years who resided in 486 neighborhoods. The study sample included 599 participants from 63 neighborhoods. A current bacterial STI was defined as diagnosis of a chlamydia and/or gonorrhea infection at the time of study participation. Participants reported on informal social control (i.e. scale comprised of 9 items) and social cohesion (i.e. scale comprised of 5 items) in their neighborhood. In a series of weighted multilevel logistic regression models stratified by gender, greater informal social control was significantly associated with a decreased odds of a current bacterial STI among females (AOR 0.53, 95% CI 0.34, 0.84) after controlling for individual social support and other factors. The association, while in a similar direction, was not significant for males (AOR 0.73, 95% CI 0.48, 1.12). Social cohesion was not significantly associated with a current bacterial STI among females (OR 0.85, 95% CI 0.61, 1.19) and separately, males (OR 0.98, 95% CI 0.67, 1.44). Greater individual social support was associated with an almost seven-fold increase in the odds of a bacterial STI among males (AOR 6.85, 95% CI 1.99, 23.53), a finding which is in contrast to our hypotheses. The findings suggest that neighborhood social organizational factors such as informal social control have an independent relationship with sexual health among U.S. urban youth. The causality of the relationship remains to be determined.
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    Factors affecting linkage to care and engagement in care for newly diagnosed HIV-positive adolescents within fifteen adolescent medicine clinics in the United States
    (Springer, 2014-08) Philbin, Morgan M.; Tanner, Amanda E.; DuVal, Anna; Ellen, Jonathan M.; Xu, Jiahong; Kapogiannis, Bill; Bethel, Jim; Fortenberry, J. Dennis; Department of Pediatrics, IU School of Medicine
    Early linkage to care and engagement in care are critical for initiation of medical interventions. However, over 50 % of newly diagnosed persons do not receive HIV-related care within 6 months of diagnosis. We evaluated a linkage to care and engagement in care initiative for HIV-positive adolescents in 15 U.S.-based clinics. Structural and client-level factors (e.g. demographic and behavioral characteristics, clinic staff and location) were evaluated as predictors of successful linkage and engagement. Within 32 months, 1,172/1,679 (69.8 %) of adolescents were linked to care of which 1,043/1,172 (89 %) were engaged in care. Only 62.1 % (1,043/1,679) of adolescents were linked and engaged in care. Linkage to care failure was attributed to adolescent, provider, and clinic-specific factors. Many adolescents provided incomplete data during the linkage process or failed to attend appointments, both associated with failure to linkage to care. Additional improvements in HIV care will require creative approaches to coordinated data sharing, as well as continued outreach services to support newly diagnosed adolescents.
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    HIV Testing, Care Referral, and Linkage to Care Intervals Affect Time to Engagement in Care for Newly Diagnosed HIV-Infected Adolescents in 15 Adolescent Medicine Clinics in the United States
    (Wolters Kluwer Health, 2016-06-01) Philbin, Morgan M.; Tanner, Amanda E.; DuVal, Anna; Ellen, Jonathan M.; Xu, Jiahong; Kapogiannis, Bill; Bethel, Jim; Fortenberry, J. Dennis; Pediatrics, School of Medicine
    OBJECTIVE: To examine how the time from HIV testing to care referral and from referral to care linkage influenced time to care engagement for newly diagnosed HIV-infected adolescents. METHODS: We evaluated the Care Initiative, a care linkage and engagement program for HIV-infected adolescents in 15 US clinics. We analyzed client-level factors, provider type, and intervals from HIV testing to care referral and from referral to care linkage as predictors of care engagement. Engagement was defined as a second HIV-related medical visit within 16 weeks of initial HIV-related medical visit (linkage). RESULTS: At 32 months, 2143 youth had been referred. Of these, 866 were linked to care through the Care Initiative within 42 days and thus eligible for study inclusion. Of the linked youth, 90.8% were ultimately engaged in care. Time from HIV testing to referral (eg, ≤7 days versus >365 days) was associated with engagement [adjusted odds ratio = 2.91; 95% confidence interval (CI): 1.43 to 5.94] and shorter time to engagement (adjusted hazard ratio = 1.41; 95% CI: 1.11 to 1.79). Individuals with shorter care referral to linkage intervals (eg, ≤7 days versus 22-42 days) engaged in care faster (adjusted hazard ratio = 2.90; 95% CI: 2.34 to 3.60) and more successfully (adjusted odds ratio = 2.01; 95% CI: 1.04 to 3.89). CONCLUSIONS: These data address a critical piece of the care continuum and can offer suggestions of where and with whom to intervene to best achieve the care engagement goals outlined in the US National HIV/AIDS Strategy. These results may also inform programs and policies that set concrete milestones and strategies for optimal care linkage timing for newly diagnosed adolescents.
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    The impact of relationship stressors on trust and pro-relationship behavior within adolescent romantic relationships: A systems approach
    (Elsevier, 2021) Matson, Pamela A.; Chung, Shang-en; Fortenberry, J. Dennis; Lich, Kristen Hassmiller; Ellen, Jonathan M.; Pediatrics, School of Medicine
    Purpose: Trust is an essential component of romantic relationships. It is not understood how youth respond to a relationship stressor, which may impact trust, such as perceiving to be at risk for a sexually transmitted infection or their partner has other sex partners. We used a system science approach to examine feedback between trust and prorelationship behaviors within adolescent relationships. Methods: A prospective cohort of clinic-recruited young women (N = 122), aged 16-19 years, completed daily questionnaires on partner-specific feelings and risk perceptions for 18 months. Relationship stressor defined as either perceiving the risk of sexually transmitted infection from a partner or partner had other sex partners. Prorelationship behaviors were more time spent with partner, sex with partner, and/or gift from partner. Time-lagged generalized estimating equation models were used to examine whether a relationship stressor is associated with a decrease in trust and whether prorelationship behaviors changed following the stressor. Results: Experiencing a stressor was associated with threefold increased odds of having a decrease in trust in the same week (odds ratio [OR] = 3.30, 95% confidence interval [CI]: 2.30-4.72). Trust increased significantly the week following the stressor (OR = 2.09, 95% CI: 1.54-2.85). An increase in trust relative to the week of the stressor was associated with a 65% increase in prorelationship behavior in the week following the stressor (OR = 1.65, 95% CI: 1.20-2.26). Conclusions: Data uniquely show that trust is impacted following a relationship stressor and that youth increase prorelationship behaviors following a drop in trust. The findings suggest that adolescents prioritize maintaining trust, which may impact engagement in protective health behaviors.
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    Implementation of an Integrated Approach to the National HIV/AIDS Strategy for Improving Human Immunodeficiency Virus Care for Youths
    (AMA, 2017-07) Fortenberry, J. Dennis; Koenig, Linda J.; Kapogiannis, Bill G.; Ellen, Jonathan M.; Wilson, Craig M.; Pediatrics, School of Medicine
    Importance Youths aged 13 to 24 years old living with human immunodeficiency virus (HIV) are less likely than adults to receive the health and prevention benefits of HIV treatments, with only a small proportion having achieved sustained viral suppression. These age-related disparities in HIV continuum of care are owing in part to the unique developmental issues of adolescents and young adults as well as the complexity and fragmentation of HIV care and related services. This article summarizes a national, multiagency, and multilevel approach to HIV care for newly diagnosed youths designed to bridge some of these fragmentations by addressing National HIV/AIDS Strategy goals for people living with HIV. Design, Setting, and Participants Three federal agencies developed memoranda of understanding to sequentially implement 3 protocols addressing key National HIV/AIDS Strategy goals. The goals were addressed in the Adolescent Trials Network, with protocols implemented in 12 to 15 sites across the United States. Outcome data were collected from recently diagnosed youth referred to the program. Main Outcomes and Measures Cross-agency collaboration, youth-friendly linkage to care services, community mobilization to address structural barriers to care, cooperation among services, proportion of all men who have sex with men who tested, and rates of linkage to prevention services. Results The program addressed National HIV/AIDS Strategy goals 2 through 4 including steps within each goal. A total of 3986 HIV-positive youths were referred for care, with more than 75% linked to care within 6 weeks of referral, with almost 90% of those youths engaged in subsequent HIV care. Community mobilization efforts implemented and completed structural change objectives to address local barriers to care. Age and racial/ethnic group disparities were addressed through targeted training for culturally competent, youth-friendly care, and intensive motivational interviewing training. Conclusions and Relevance A national program to address the National HIV/AIDS Strategy specifically for youths can improve coordination of federal resources as well as implement best-practice models that are adapted to decrease service fragmentation and systemic barriers at local jurisdictions.
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    Understanding Care Linkage and Engagement Across 15 Adolescent Clinics: Provider Perspectives and Implications for Newly HIV-Infected Youth
    (International Society for AIDS Education, 2017-04) Philbin, Morgan M.; Tanner, Amanda E.; DuVal, Anna; Ellen, Jonathan M.; Kapogiannis, Bill; Fortenberry, J. Dennis; Pediatrics, School of Medicine
    The National HIV/AIDS Strategy emphasizes rapid care linkage and engagement for HIV-infected individuals, though many adolescents are never tested, delay entering care, and frequently drop out. We conducted 183 staff interviews at 15 adolescent medicine clinics (baseline, n = 64; Year 1, n = 60; Year 2, = 59). We used a constant comparative thematic method to examine how providers approached and discussed care linkage/engagement. Qualitative analyses revealed differences in providers' conceptualizations of linkage and engagement. Providers saw linkage as mechanistic and health system driven. It was defined by number of clinic visits and involved relatively little youth agency. In contrast, providers defined engagement by youths' responsibility and participation in their own care. Linkage and engagement are related but distinct aspects of care that require different resources and levels of staff involvement. Integrating an understanding of these differences into future interventions will allow clinic staff to help youth improve long-term health outcomes.
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    Weekly variations in feelings of trust predict incident STI within a prospective cohort of adolescent women from a US city FREE
    (BMJ, 2018) Matson, Pamela A.; Fortenberry, J. Dennis; Chung, Shang-en; Gaydos, Charlotte A.; Ellen, Jonathan M.; Pediatrics, School of Medicine
    Objectives Feelings of intimacy, perceptions of partner concurrency (PPC) and perceptions of risk for an STD (PRSTD) are meaningful and dynamic attributes of adolescent sexual relationships. Our objective was to examine whether variations in these STI-associated feelings and perceptions predicted incident Chlamydia trachomatis and/or Neisseriagonorrhoeae infection within a prospective cohort of urban adolescent women. Methods A cohort of clinic-recruited women aged 16–19 completed daily surveys on feelings and risk perceptions about each current sex partner on a smartphone continuously for up to 18 months. Urine was tested for C. trachomatis and N. gonorrhoeae every 3 months. Daily responses were averaged across the week. As overall means for trust, closeness and commitment were high, data were coded to indicate any decrease in feelings from the previous week. PRSTD and PPC were reverse coded to indicate any increase from the previous week. An index was created to examine the cumulative effect of variation in these feelings and perceptions. Generalised linear models were used to account for correlation among repeated measures within relationships. Results For each week that there was a decrease in trust, there was a 45% increase in the risk of being infected with an STI at follow-up (relative risk (RR) 1.45, 95% CI 1.18 to 1.78, P=0.004). Neither a decrease in closeness or commitment, nor an increase in PRSTD or PPC was associated with an STI outcome. Cumulatively, the index measure indicated that a change in an additional feeling or perception over the week increased the odds of an STI by 14% (RR 1.14, 95% CI 1.02 to 1.29, P=0.026). Conclusions A decrease in feelings of trust towards a main partner may be a more sensitive indicator of STI risk than PRSTD, PPC or commitment. The next generation of behavioural interventions for youth will need strategies to address feelings of intimacy within adolescent romantic relationships.