The Development and Testing of a Multi-Level, Multi-Component Pilot Intervention To Reduce Sexual and Reproductive Health Disparities in a Tribal Community

Regional Variation in HPV Knowledge and Awareness among American Indians and Alaska Natives: An Analysis of the Health Information National Trends Survey, 2011-2020

BACKGROUND

American Indian and Alaskan Native (AIAN) people experience a disproportionately high incidence of human papillomavirus (HPV)-related cancers and mortality, and these rates vary across geographic regions. To address the unexplained regional differences among AIAN people, we describe regional variations and sociodemographic correlates of HPV-related knowledge and HPV vaccination awareness indicators.

METHODS

A cross-sectional study was implemented with data for 866 AIAN respondents pooled from eight cycles of the Health Information National Trends Survey. We used χ2 tests to determine whether there were regional differences in the indicators and then used multivariable, modified Poisson regression to explore associations between sociodemographic characteristics and HPV-related knowledge and vaccination awareness measures.

RESULTS

Of the 13 indicators, just one demonstrated regional variation. However, we observed a high level of uncertainty regarding HPV and HPV vaccine-related knowledge and experience. We also observed that women were more likely than men to have heard of HPV [adjusted prevalence ratio (aPR), 1.29; 95% confidence interval (CI):1.03-1.63], the HPV vaccine (aPR, 1.59; 95% CI: 1.15-2.22), and to have discussed it with their providers (aPR, 3.69; 95% CI: 1.47-9.28). There were also differences by age, education, and insurance status.

CONCLUSIONS

High levels of uncertainty and lack of regional variation in indicators suggest that there may be missed opportunities across Indian Country for engagement between health care providers and AIAN in HPV-related conversations.

IMPACT

Efforts toward improving HPV knowledge and vaccination should target all at-risk sexes (and genders), age groups, and education levels. Moreover, AIAN-serving health care providers should be empowered with sufficient understanding, so they are prepared for discussions with at-risk patients.

Inequalities in cesarean births between American Indian & Alaska Native people and White people

OBJECTIVE

To explore population-level American Indian & Alaska Native-White inequalities in cesarean birth incidence after accounting for differences in cesarean indication, age, and other individual-level risk factors.

DATA SOURCES AND STUDY SETTING

We used birth certificate data inclusive of all live births within the United States between January 1 and December 31, 2017.

STUDY DESIGN

We calculated propensity score weights that simultaneously incorporate age, cesarean indication, and clinical and obstetric risk factors to estimate the American Indian and Alaska Native-White inequality.

DATA COLLECTION/EXTRACTION METHODS

Births to individuals identified as American Indian, Alaska Native, or White, and residing in one of the 50 US states or the District of Columbia were included. Births were excluded if missing maternal race/ethnicity or any other covariate.

PRINCIPAL FINDINGS

After weighing the American Indian and Alaska Native obstetric population to be comparable to the distribution of cesarean indication, age, and clinical and obstetric risk factors of the White population, the cesarean incidence among American Indian and Alaska Natives increased to 33.4% (95% CI: 32.0-34.8), 3.2 percentage points (95% CI: 1.8-4.7) higher than the observed White incidence. After adjustment, cesarean birth incidence remained higher and increased in magnitude among American Indian and Alaska Natives in Robson groups 1 (low risk, primary), 6 (nulliparous, breech presentation), and 9 (transverse/oblique lie).

CONCLUSIONS

The unadjusted lower cesarean birth incidence observed among American Indian and Alaska Native individuals compared to White individuals may be related to their younger mean age at birth. After adjusting for this demographic difference, we demonstrate that American Indian and Alaska Native individuals undergo cesarean birth more frequently than White individuals with similar risk profiles, particularly within the low-risk Robson group 1 and those with non-cephalic presentations (Robson groups 6 and 9). Racism and bias in clinical decision making, structural racism, colonialism, or other unidentified factors may contribute to this inequality.

Baseline results from NenŨnkUmbi/EdaHiYedo: A randomized clinical trial to improve sexual and reproductive health among American Indian adolescents

We report on baseline findings from NenUnkUmbi/EdaHiYedo, a community based participatory research randomized controlled trial with American Indian adolescents to reduce sexual and reproductive health disparities. American Indian adolescents aged 13-19 years participated in a baseline survey that was administered in five schools. We used zero-inflated negative binomial regression to evaluate how the count of protected sexual acts was associated with independent variables of interest. We stratified models by self-reported gender of adolescents and tested for a two-way interaction effect between gender and the independent variable of interest. Two hundred twenty-three girls and 222 boys (n = 445) were sampled. The average number of lifetime partners was 1.0 (standard deviation = 1.7). Each additional lifetime partner was associated with a 50% increase in the number of protected sexual acts incident rate ratio (IRR = 1.5, 95% confidence interval [CI] 1.1-1.9) and more than a twofold increase in the likelihood of not having protected sexual acts (adjusted odd ratio [aOR] = 2.6, 95% CI 1.3-5.1). Each additional number of substances used in adolescentss' lifetime was associated with an increased likelihood of not having protected sexual acts (aOR = 1.2, 95% CI 1.0-1.5). In boys, each one standard deviation increase in depression severity was associated with a 50% reduction in the number of times a condom was used adjusted IRR (aIRR = 0.5, 95% CI 0.4-0.6, p < .001). Each 1-unit increase in positive prospections of pregnancy was associated with a pronounced decrease likelihood of not having protected sexual acts (aOR = 0.01, 95% CI 0.0-0.1). Findings support the importance of tribally driven tailoring of sexual and reproducive health interventions and services for American Indian adolescents.

Creating a path forward: understanding the context of sexual health and sexually transmitted infections in American Indian/Alaska Native populations &#x2013; a review

This review assessed sexual health and sexually transmitted infection (STI) burden among American Indian/Alaska Native (AI/AN) peoples within the context of current clinical and public health services. We conducted a review of published literature about sexual health and bacterial STIs among AI/AN populations in the United States using Medline (OVID), CINAHL (EbscoHost) and Scopus. Peer-reviewed journals published during 1 January 2005-2 December 2021 were included and supplemented by other publicly available literature. A total of 138 articles from reference lists met inclusion criteria, including 85 peer-review articles and 53 additional references. Results indicate a disproportionate burden of STIs is carried by AI/AN populations compared to non-Hispanic Whites. Risk for STIs in AI/AN people has origins in historical trauma and structural and social determinants of health. STI services are available for AI/AN populations, but many barriers to care exist. Community-based sexual health programming has been successful, but has thus far focused primarily on adolescents and young adults. A myriad of factors contributes to high rates of STIs among AI/AN populations. Longstanding disparities show a clear need to increase the availability of integrated, low-barrier STI prevention and treatment services. Implementation of multi-level (individual, physician, clinic, healthcare organisation, and/or community level), culturally relevant sexual health and STI interventions should be community-based and person-centred, acknowledge social determinants of health, and grounded in deep respect and understanding of AI/AN histories and cultures.

Rationale, Design, and Methods for Nen Unkumbi/Edahiyedo ("We Are Here Now"): A Multi-Level Randomized Controlled Trial to Improve Sexual and Reproductive Health Outcomes in a Northern Plains American Indian Reservation Community

American Indian (AI) youth in the United States experience disproportionate sexual and reproductive health (SRH) disparities relative to their non-Indigenous, white counterparts, including increased rates of sexually transmitted infections (STIs), earlier sexual debut, increased rates of teen birth, and reduced access to SRH services. Past research shows that to improve SRH outcomes for AI youth in reservation communities, interventions must address complex factors and multiple levels of community that influence sexual risk behaviors. Here, we describe development of a multi-level, multi-component randomized controlled trial (RCT) to intervene upon SRH outcomes in a Northern Plains American Indian reservation community. Our intervention is rooted in a community based participatory research framework and is evaluated with a stepped wedge design that integrates 5 reservation high schools into a 5-year, cluster-randomized RCT. Ecological Systems Theory was used to design the intervention that includes (1) an individual level component of culturally specific SRH curriculum in school, (2) a parental component of education to improve parent-child communication about SRH and healthy relationships, (3) a community component of cultural mentorship, and (4) a systems-level component to improve delivery of SRH services from reservation healthcare agencies. In this article we present the rationale and details of our research design, instrumentation, data collection protocol, analytical methods, and community participation in the intervention. Our intervention builds upon existing community strengths and integrates traditional Indigenous knowledge and values with current public health knowledge to reduce SRH disparities.

Early childbearing, family support, and staying in school in a Northern Plains American Indian reservation

American Indian youth experience teen birth and school dropout at higher rates than other racial and ethnic groups in the United States. Early childbearing is associated with adverse health and socioeconomic outcomes, including attenuated education. However, kinship childrearing norms among Northern Plains tribes can support positive experiences of early childbearing. Using a community based participatory research framework, this mixed methods exploratory study engaged high school students from a Northern Plains reservation community to examine youth perceptions of family support and belief in ability to stay in school should they have a child. We elicited youth observations of facilitators and inhibitors to academic achievement for young parents. This research supports the need for strengths-based, gender specific, and family inclusive sexuality education to support young people in their reproductive choices in reservation settings. We highlight the utility of including youth as co-authors and co-researchers in future studies.

Vaginal microbiota of American Indian women and associations with measures of psychosocial stress

Molecular-bacterial vaginosis (BV) is characterized by low levels of vaginal Lactobacillus species and is associated with higher risk of sexually transmitted infections (STI). Perceived psychosocial stress is associated with increased severity and persistence of infections, including STIs. American Indians have the highest rates of stress and high rates of STIs. The prevalence of molecular-BV among American Indian women is unknown. We sought to evaluate measures of psychosocial stress, such as historic loss (a multigenerational factor involving slavery, forced removal from one's land, legally ratified race-based segregation, and contemporary discrimination) and their association with the vaginal microbiota and specific metabolites associated with BV, in 70 Northwestern Plains American Indian women. Demographics, perceived psychosocial stressors, sexual practices, and known BV risk factors were assessed using a modified version of the American Indian Service Utilization, Psychiatric Epidemiology, Risk and Protective Factors Project survey. Self-collected mid-vaginal swabs were profiled for bacterial composition by 16S rRNA gene amplicon sequencing and metabolites quantified by targeted liquid-chromatography mass spectrometry. Sixty-six percent of the participants were classified as having molecular-BV, with the rest being either dominated by L. crispatus (10%) or L. iners (24%). High levels of lifetime trauma were associated with higher odds of having molecular-BV (adjusted Odds Ratio (aOR): 2.5, 95% Credible Interval (CrI): 1.1-5.3). Measures of psychosocial stress, including historic loss and historic loss associated symptoms, were significantly associated with lifestyle and behavioral practices. Higher scores of lifetime trauma were associated with increased concentrations of spermine (aFC: 3.3, 95% CrI: 1.2-9.2). Historic loss associated symptoms and biogenic amines were the major correlates of molecular-BV. Historical loss associated symptoms and lifetime trauma are potentially important underlying factors associated with BV.