Streptococcus pneumoniae serotype 3 population structure in the era of conjugate vaccines, 2001-2018.

Background. Despite use of highly effective conjugate vaccines, invasive pneumococcal disease (IPD) remains a leading cause of morbidity and mortality and disproportionately affects Indigenous populations. Although included in the 13-valent pneumococcal conjugate vaccine (PCV13), which was introduced in 2010, serotype 3 continues to cause disease among Indigenous communities in the Southwest USA. In the Navajo Nation, serotype 3 IPD incidence increased among adults (3.8/100 000 in 2001-2009 and 6.2/100 000 in 2011-2019); in children the disease persisted although the rates dropped from 5.8/100 000 to 2.3/100 000.Methods. We analysed the genomic epidemiology of serotype 3 isolates collected from 129 adults and 63 children with pneumococcal carriage (n=61) or IPD (n=131) from 2001 to 2018 of the Navajo Nation. Using whole-genome sequencing data, we determined clade membership and assessed changes in serotype 3 population structure over time.Results. The serotype 3 population structure was characterized by three dominant subpopulations: clade II (n=90, 46.9 %) and clade Iα (n=59, 30.7 %), which fall into Clonal Complex (CC) 180, and a non-CC180 clade (n=43, 22.4 %). The proportion of clade II-associated IPD cases increased significantly from 2001 to 2010 to 2011-2018 among adults (23.1-71.8 %; P<0.001) but not in children (27.3-33.3 %; P=0.84). Over the same period, the proportion of clade II-associated carriage increased; this was statistically significant among children (23.3-52.6 %; P=0.04) but not adults (0-50.0 %, P=0.08).Conclusions. In this setting with persistent serotype 3 IPD and carriage, clade II has increased since 2010. Genomic changes may be contributing to the observed trends in serotype 3 carriage and disease over time.

The Pre-implementation Process of Adapting a Culturally Informed Stress Reduction Intervention for Native American Head Start Teachers.

Head Start is a federally funded program for children (3-5 years) from low-income families. In the Fort Peck Native American Reservation, tribal Head Start teachers have reported high stress in supporting children experiencing adverse childhood experiences. Thus, we adapted the Little Holy One intervention (ClinicalTrials.gov: NCT04201184) for the teachers' context and culture to enhance psychological health and well-being. Within a participatory framework, the eight-step ADAPT-ITT methodology was used to guide the adaptation process: assessment; decision; adaptation; production; topical experts; integration; training; and testing. For Step 1, we purposive sampled 27 teachers, ancillary staff, and parents to understand teachers' stress, support mechanisms, and interest in an intervention via focus groups (n = 9) and individual interviews (n = 18). Qualitative data underscored teachers' experiences of stress, depression, and need for support (Step 1). Iterative feedback from a tribal advisory board and Little Holy One designers rendered selection of five lessons (Step 2, 5), which were adapted for the teachers via theater testing (Step 3, 4). Community capacity assessment revealed their ability to implement the intervention (Step 6). Testing of this adapted intervention in a feasibility trial (steps 7, 8) will be reported in a future publication. A rigorous systematic process within a participatory framework allowed intervention adaption based on community input. Leveraging "culture as treatment" may be useful for enhancing psychological health outcomes for Native Americans who historically underutilize existing psychological services. Supplementary Information: The online version contains supplementary material available at 10.1007/s43477-022-00070-3.

COVID-19 Messaging on Social Media for American Indian and Alaska Native Communities: Thematic Analysis of Audience Reach and Web Behavior.

Background: During the COVID-19 pandemic, tribal and health organizations used social media to rapidly disseminate public health guidance highlighting protective behaviors such as masking and vaccination to mitigate the pandemic's disproportionate burden on American Indian and Alaska Native (AI/AN) communities. Objective: Seeking to provide guidance for future communication campaigns prioritizing AI/AN audiences, this study aimed to identify Twitter post characteristics associated with higher performance, measured by audience reach (impressions) and web behavior (engagement rate). Methods: We analyzed Twitter posts published by a campaign by the Johns Hopkins Center for Indigenous Health from July 2020 to June 2021. Qualitative analysis was informed by in-depth interviews with members of a Tribal Advisory Board and thematically organized according to the Health Belief Model. A general linearized model was used to analyze associations between Twitter post themes, impressions, and engagement rates. Results: The campaign published 162 Twitter messages, which organically generated 425,834 impressions and 6016 engagements. Iterative analysis of these Twitter posts identified 10 unique themes under theory- and culture-related categories of framing knowledge, cultural messaging, normalizing mitigation strategies, and interactive opportunities, which were corroborated by interviews with Tribal Advisory Board members. Statistical analysis of Twitter impressions and engagement rate by theme demonstrated that posts featuring culturally resonant community role models (P=.02), promoting web-based events (P=.002), and with messaging as part of Twitter Chats (P<.001) were likely to generate higher impressions. In the adjusted analysis controlling for the date of posting, only the promotion of web-based events (P=.003) and Twitter Chat messaging (P=.01) remained significant. Visual, explanatory posts promoting self-efficacy (P=.01; P=.01) and humorous posts (P=.02; P=.01) were the most likely to generate high-engagement rates in both the adjusted and unadjusted analysis. Conclusions: Results from the 1-year Twitter campaign provide lessons to inform organizations designing social media messages to reach and engage AI/AN social media audiences. The use of interactive events, instructional graphics, and Indigenous humor are promising practices to engage community members, potentially opening audiences to receiving important and time-sensitive guidance.

'Empowering our people' to address depression, violence, and sexual risk among Native Americans with recent binge alcohol use.

Background: This study was launched in response to an American Indian (AI) community's concern regarding the comorbid occurrence of substance use, poor mental health, and other risk factors on sexual health. The purpose of this manuscript was to assess the relationship between alcohol use, violence, depression and STI/HIV risk behaviors on the frequency of unprotected sex acts and number of sexual partners among AI adults.Methods: Specifically, this analysis examines sociodemographic characteristics, experience of sexual and physical violence, binge drinking, depression, and sexual risk taking among n = 281 AI adults ages 18-55. Regression models examine associations between the aforementioned risk factors, number of sex partners and number of unprotected sex acts, by depression status and sex, among participants.Results: Frequent binge drinking predicted frequency of unprotected sex for both males and females; ever experiencing physical violence was a powerful predictor of unprotected sex for females, but not males. Ever experiencing physical violence strongly predicted having multiple sexual partners for females but was related to decreased number of sexual partners for males. Females ever experiencing sexual violence had more sexual partners; this was not observed for males. Binge drinking predicted frequency of unprotected sex acts, regardless of depression status.Discussion: Interventions for AI adults seeking to reduce sexual health risk should reflect past violence victimization in sexual decision making, primarily among women. The significant role of binge alcohol use for modifying sexual decisions should be of prime focus and interventions should be personalized to address individuals' own alcohol use patterns. Additional research should explore how binge alcohol use moderates the relationship between depression and sexual risk.

Wakȟáŋyeza (Little Holy One) - an intergenerational intervention for Native American parents and children: a protocol for a randomized controlled trial with embedded single-case experimental design.

BACKGROUND: Trauma within Native American communities compromises parents' parenting capacity; thus, increasing childrens' risk for substance use and suicide over the lifespan. The objective of this manuscript is to describe the Wakȟáŋyeza (Little Holy One) intervention and evaluation protocol, that is designed to break cycles of intergenerational trauma, suicide, and substance use among Fort Peck Assiniboine and Sioux parents and their children. METHODS: A randomized controlled trial with an embedded single-case experimental design will be used to determine effectiveness of the modular prevention intervention on parent-child outcomes and the added impact of unique cultural lesson-components. Participants include 1) Fort Peck Assiniboine and Sioux parents who have had adverse childhood experiences, and 2) their children (3-5 years). Parent-child dyads are randomized (1:1) to Little Holy One or a control group that consists of 12 lessons taught by Indigenous community health workers. Lessons were developed from elements of 1) the Common Elements Treatment Approach and Family Spirit, both evidence-based interventions, and 2) newly created cultural (intervention) and nutrition (control group only) lessons. Primary outcomes are parent (primary caregiver) trauma symptoms and stress. Secondary outcomes include: Parent depression symptoms, parenting practices, parental control, family routines, substance use, historical loss, communal mastery, tribal identity, historical trauma. Child outcomes include, externalizing and internalizing behavior and school attendance. Primary analysis will follow an intent-to-treat approach, and secondary analysis will include examination of change trajectories to determine impact of cultural lessons and exploration of overall effect moderation by age and gender of child and type of caregiver (e.g., parent, grandparent). DISCUSSION: Many Native American parents have endured adverse childhood experiences and traumas that can negatively impact capacity for positive parenting. Study results will provide insights about the potential of a culturally-based intervention to reduce parental distress - an upstream approach to reducing risk for childrens' later substance misuse and suicidality. Intervention design features, including use of community health workers, cultural grounding, and administration in Head Start settings lend potential for feasibility, acceptability, sustainability, and scalability. TRIAL REGISTRATION: ClinicalTrials.gov: NCT04201184 . Registered 11 December 2019.

Impacts of the respecting the circle of life teen pregnancy prevention program on risk and protective factors for early substance use among native American youth.

BACKGROUND: Early substance use disproportionately impacts Native American (Native) youth and increases their risk for future abuse and dependence. The literature urges for interventions to move beyond focusing on single risk behaviors (e.g. substance use) and instead have capacity to improve health risk behaviors co-occuring during adolescence, particularly among Native populations for whom few evidence-based interventions (EBI) exist. We evaluated the effectiveness of the Respecting the Circle of Life program (RCL) on risk and protective factors for early substance use. RCL is a culturally tailored EBI shown to improve sexual health outcomes among Native youth. METHODS: We conducted secondary analyses of data collected through a community-based randomized controlled trial of RCL evaluated among Native youth (ages 11-19) residing on a rural reservation between 2015-2020 (N = 534, 47.4 % male). We used linear regression, controlling for baseline age and sex, to test between study group differences in outcomes at 3-, 9-, and 12-month post-intervention. Models were stratified by sex and age (11-12, 13-14, and 15+ years of age) to examine differences within these subgroups. RESULTS: Youth receiving RCL reported lower intention to use substances through 12-months follow-up (p = 0.006). Statistically significant improvements were also observed across peer, parent, and sexual partner risk and protective factors to delay substance use initiation, with notable differences among boys and participants ages 13-14. CONCLUSIONS: RCL is a primary prevention, skills-based program effective in preventing risks for substance use. This evaluation underscores the value in developing programs that influence concurrent adolescent risk behaviors, especially for Native communities who endure multiple health disparities.

Prevention of Sexually Transmitted Diseases and Pregnancy Prevention Among Native American Youths: A Randomized Controlled Trial, 2016-2018.

Objectives. To evaluate the efficacy of the Respecting the Circle of Life program (RCL) among Native American youths 11 to 19 years of age residing in a rural reservation community in the southwestern United States. Methods. Between 2016 and 2018, we conducted a randomized controlled trial of the RCL program with 534 Native youths. Participants completed assessments at baseline and 9 and 12 months after the intervention. We conducted intention-to-treat analyses based on study group randomization. Results. At 9 months, intervention participants had significantly better condom use self-efficacy (P < .001), higher intentions to use condoms (P = .024) and abstain from sex (P = .008), and better contraceptive use self-efficacy (P < .001) than control participants, as well as better condom use (P = .032) and contraceptive use (P = .002) negotiation skills. At 12 months, intervention participants had significantly better sexual and reproductive health knowledge (P = .021), condom use self-efficacy (P < .001), contraceptive use self-efficacy (P < .001), and contraceptive use negotiation skills (P = .004) than control participants. Intervention participants reported significantly more communication with their parents about sexual and reproductive health than control participants at both 9 and 12 months (P = .042 and P = .001, respectively). Conclusions. The RCL program has a significant impact on key factors associated with pregnancy prevention among Native youths and should be used as an adolescent pregnancy prevention strategy. Trial Registration.  Clinical Trials.gov identifier: NCT02904629. (Am J Public Health. 2021;111(10): 1874-1884. https://doi.org/10.2105/AJPH.2021.306447).

Feasibility, Acceptability, and Preliminary Impact of Asdzáán Be'eená: An Intergenerational, Strength-Based, and Culturally Grounded Program to Improve the Health of Navajo Families.

Native American youth endure a complex interplay of factors that portend greater risk-taking behaviors and contribute to marked health disparities experienced in adolescence. The Asdzáán Be'eená ("Female Pathways" in Navajo) program was developed as a primary prevention program to prevent substance use and teen pregnancy among Navajo girls. The Asdzáán Be'eená program consists of 11 lessons delivered to dyads of girls ages 8 to 11 years and their female caregivers. Feasibility, acceptability, and preliminary impact on risk and protective factors were assessed through a pre-/post study design. Data were collected from girls and their female caregivers at baseline, immediate, and 3 months postprogram completion. Forty-seven dyads enrolled in the study, and 36 completed the 3-month evaluation. At 3 months postprogram, girls reported significant increases in self-esteem, self-efficacy, parent-child relationship, social support, cultural, and sexual health knowledge. Caregivers reported increased family engagement in Navajo culture and parent-child communication and improved child functioning (fewer internalizing and externalizing behaviors). Findings suggest Asdzáán Be'eená has potential to break the cycle of substance use and teen pregnancy in Native communities by improving protective and reducing risk factors associated with these adverse health outcomes. Additional rigorous efficacy trials are necessary to establish program effectiveness.

"Empowering Our People": Impact of a Culturally Adapted Evidence-Based Intervention on Sexually Transmitted Infection Risks Among Native Americans With Binge Substance Use.

BACKGROUND: The objective of this study was to evaluate a culturally adapted evidence-based intervention called EMPWR (Educate, Motivate, Protect, Wellness and Respect) for impacts on sexually transmitted infection (STI) screening and sexual health risk behaviors. METHODS: We enrolled Native American adults with recent binge substance use from a rural, reservation community in the Southwest into a 1:1 randomized controlled trial conducted on July 2015 to June 2019. All participants were offered non-clinic-based self-administered STI screening. Data were collected via self-report at baseline, 3 months, and 6 months after the intervention. Baseline and end line data are presented. RESULTS: Three hundred one participants were enrolled and had a mean age of 33.8 years; 46.5% of the sample were female, and 9.1% were employed at baseline. EMPWR participants were more likely to complete STI self-screening than control participants (38.2% vs. 23.8%, P = 0.0275). EMPWR participants reported fewer unprotected sex acts in the past 3 months (9.3 vs. 16.0, P = 0.001) and were more likely to refuse sex if their partner was not tested (23.6% vs. 12.4%, P = 0.049). The between-group difference in STI positivity 1 year after study completion was nearing statistical significance (intervention: 39.5% vs. control: 59.6%, P = 0.0575). CONCLUSIONS: The culturally adapted evidence-based intervention, EMPWR, increased uptake of STI screening and refusal of sex if partner was not STI tested and decreased the frequency of unprotected sex acts among Native American adults with recent binge substance use living on a rural reservation. Future research is needed to examine EMPWR impacts among other Native American subgroups and its potential for advancing sexual health equity in this high-priority population.

Effect of a Home-Visiting Intervention to Reduce Early Childhood Obesity Among Native American Children: A Randomized Clinical Trial.

Importance: Early childhood obesity disproportionately affects Native American communities. Home visiting is a promising strategy for promoting optimal infant growth in this population. Objective: To assess the impact of a brief home-visiting approach, Family Spirit Nurture (FSN), on sugar-sweetened beverage (SSB) consumption, responsive parenting and infant feeding practices, and optimal growth through 12 months post partum. Design, Setting, and Participants: This study was a 1:1 randomized clinical trial comparing FSN with an injury prevention education control condition in a reservation-based community. Participants were Navajo mothers 13 years or older with infants younger than 14 weeks recruited between March 22, 2017, and May 18, 2018, and followed up through 12 months post partum. Intent-to-treat analyses were conducted. Interventions: The 6-lesson FSN curriculum, delivered 3 to 6 months post partum by Navajo paraprofessionals, targeted optimal responsive and complementary feeding practices and avoidance of SSBs. The control group received 3 injury prevention lessons. Main Outcomes and Measures: Primary outcomes established a priori were infant SSB consumption and responsive parenting and complementary feeding practices (responsive feeding scale, age at complementary food introduction, and percentage of mothers who introduced complementary food to infants at 6 months of age or older). The secondary outcome was the effect of the intervention on infant body mass index z scores (zBMIs). Results: A total of 134 Navajo mothers of infants younger than 14 weeks were enrolled in the randomized clinical trial, including 68 (mean [SD] maternal age at enrollment, 27.4 [6.4] years) in the intervention group and 66 (mean [SD] maternal age at enrollment, 27.5 [6.1] years) in the control group. Intervention participants reported statistically significantly lower infant SSB consumption through 12 months post partum (mean [SE], 0.56 [0.12] cups per week in the intervention group and 1.78 [0.18] cups per week in the control group; incidence rate ratio, 0.31; 95% CI, 0.19-0.50). Improvements in responsive feeding practices were observed through 9 months post partum (mean [SE], 3.48 [0.07] in the intervention group and 3.22 [0.08] in the control group) (difference, 0.26; 95% CI, 0.06-0.47); statistical significance was lost at 12 months post partum. Age at which the infant was given first food was younger in the intervention group (mean [SE] age, 4.61 [0.21] months in the intervention group and 5.28 [0.23] months in the control group) (difference, -0.67; 95% CI, -0.04 to -1.29). Infants in the intervention group had lower zBMI at 6 and 9 months compared with those in the control group (mean [SE] at 9 months, 0.27 [0.14] in the intervention group and 0.81 [0.14] in the control group; difference, -0.54; 95% CI, -0.94 to -0.14). The 12-month between-group difference was meaningful but not statistically significant (mean [SE], 0.61 [0.16] in the intervention group and 1.07 [0.20] in the control group; difference, -0.46; 95% CI, -0.92 to 0.01). Conclusions and Relevance: Infants of Native American mothers who participated in a home-visiting intervention had substantially lower SSB consumption and improvements in responsive feeding practices and infant zBMI scores, suggesting the intervention is effective for promoting healthy infant feeding and growth. Trial Registration: ClinicalTrials.gov Identifier: NCT03101943.

Predictors of Sexually Transmitted Infection Positivity Among Substance-Using Native American Adults.

BACKGROUND: Sexually transmitted infections (STIs) are a public health crisis with Native Americans suffering a high burden of disease. Studies across gender and racial/ethnic groups have found varying risk factors associated with STI positivity. Understanding how risk factors are associated with STI positivity can help design interventions for those most at risk. METHODS: Participants were Native American binge substance using adults enrolled in a randomized controlled trial evaluating a brief intervention to increase STI screening and reduce sexual risk-taking behaviors. Participants completed a self-report assessment at baseline that included questions about sexual risk factors and STI testing behaviors and diagnosis. This analysis includes those who had ever completed an STI test at baseline. Bivariate and multivariate analyses using logistical regression were utilized to identify associations between risk factors and past STI diagnosis. RESULTS: A total of 193 people were included in the analysis. Over half (50.6%) of the participants had ever been diagnosed with an STI. Risk behaviors varied by gender. More women with a self-reported history of STI reported having sex with someone they thought had an STI, past experience of physical/sexual violence, and having passed out from drinking. Men with a self-reported history of STI were more likely to report past marijuana and other drug use. Among women with a self-reported history of STI, having sex with someone they thought had an STI was associated with STI positivity, whereas other drug use was associated with STI positivity among men with a self-reported history of STI. CONCLUSIONS: Findings provide information for those working to reduce STIs in Native Communities to better identify and design programs for those at highest risk for STIs. Additional studies examining gender dynamics and sexual risk taking among native adults are warranted.