Oncologists' perceptions of tumor genomic profiling and barriers to communicating secondary hereditary risks to African American cancer patients.

BACKGROUND: Tumor genomic profiling (TGP) identifies targets for precision cancer treatments, but also secondary hereditary risks. Oncologists are poorly trained to communicate the results of TGP, especially among patients with lower health literacy, poorer genetics knowledge, and higher mistrust. African American (AA) patients are especially vulnerable to poor understanding due to significant cancer disparities and lower uptake of TGP. The goal of this research is to inform the development of an internet-based brief educational support for oncologists to prepare them to provide better decisional support related to TGP for their AA cancer patients. METHODS: This mixed-methods study used semi-structured interviews of oncologists to inform development of an online survey with a convenience sample of US-based oncologists (n = 50) to assess perceptions of the challenges of TGP and communicating results to AA patients. RESULTS: Most interviewed oncologists felt it was important to consider racial/cultural differences when communicating about hereditary risks. Cost, family dynamics, discrimination concerns, and medical mistrust were identified as particularly salient. Survey respondents' views related to AAs and perceptions of TGP were strongly associated with years since completing training, with recent graduates expressing stronger agreement with statements identifying barriers/disadvantages to TGP for AA patients. CONCLUSIONS: Oncologists who had more recently completed training expressed more negative perceptions of TGP and more perceived challenges in communicating about TGP with their AA patients. Focused training for oncologists that addresses barriers specific to AAs may be helpful in supporting improved communication about TGP and improved decisional support for AA patients with cancer considering TGP to evaluate their tumors.

COVID-19 vaccine perspectives and uptake among university students three years into the pandemic.

BACKGROUND: University students have been uniquely impacted by the COVID-19 pandemic for the past three years (2020-2023). Understanding their COVID-19 perspectives, beliefs, and vaccine uptake may help to improve future vaccine initiatives and education. METHODS: A cross sectional, confidential, online survey was conducted at four universities in Pennsylvania in spring 2023 to assess undergraduate, graduate, and professional students' perspectives regarding their knowledge of COVID-19 vaccines, importance of COVID-19 vaccines and mandates, number of doses of COVID-19 vaccine received including the recent BA.4/BA.5 bivalent booster, where they were vaccinated, receipt of influenza vaccine, and sources of information used to make decisions about COVID-19 vaccine. RESULTS: Vaccination for COVID-19 was considered important by 75 % of 2223 students surveyed; 68 % agreed with mandating COVID-19 vaccine. Over 89 % were fully COVID-19 vaccinated (≥2 doses), 65 % were up-to-date (≥3 doses), but only 35 % had received the BA.4/BA.5 booster. Students who considered COVID-19 vaccine important were generally older, female, and non-business majors. Higher rates of up-to-date COVID-19 vaccination were found in those who received influenza vaccine in 2022-2023, females, Asians, doctoral or professional students, those attending larger universities, non-US residents, and those interested in learning more about COVID-19 vaccines. Most trusted sources of information on COVID-19 vaccines were the Centers for Disease Control and Prevention, healthcare providers, and parents; the least trusted sources were social media, television, and the internet. CONCLUSIONS: The majority of university students agreed that COVID-19 vaccination is important and supported COVID-19 mandates. While the rate of fully vaccinated and up-to-date students was similar to the US adult population, the latter rate needs improvement. Receipt of the BA.4/BA.5 booster was particularly low. Further education is needed to improve vaccine knowledge, especially as we move to periodic boosters. Business majors, males, and younger students may benefit from increased on-campus vaccine education initiatives.

Understanding perceptions of tumor genomic profile testing in Black/African American cancer patients in a qualitative study: the role of medical mistrust, provider communication, and family support.

Tumor genomic profiling (TGP) examines genes and somatic mutations specific to a patient's tumor to identify targets for cancer treatments but can also uncover secondary hereditary (germline) mutations. Most patients are unprepared to make complex decisions related to this information. Black/African American (AA) cancer patients are especially at risk because of lower health literacy, higher levels of medical mistrust, and lower awareness and knowledge of genetic testing. But little is known about their TGP attitudes or preferences. Five in-person focus groups were conducted with Black/AA cancer patients (N = 33) from an NCI-designated cancer center and an affiliated oncology unit in an urban safety-net hospital located in Philadelphia. Focus groups explored participants' understanding of TGP, cultural beliefs about genetics, medical mistrust, and how these perceptions informed decision-making. Participants were mostly female (81.8%), and one-third had some college education; mean age was 57 with a SD of 11.35. Of patients, 33.3% reported never having heard of TGP, and 48.5% were not aware of having had TGP as part of their cancer treatment. Qualitative analysis was guided by the principles of applied thematic analysis and yielded five themes: (1) mistrust of medical institutions spurring independent health-information seeking; (2) genetic testing results as both empowering and overwhelming; (3) how provider-patient communication can obviate medical mistrust; (4) how unsupportive patient-family communication undermines interest in secondary-hereditary risk communication; and (5) importance of developing centralized patient support systems outside of treatment decisions. Results improve understanding of how Black/AA patients perceive of TGP and how interventions can be developed to assist with making informed decisions about secondary hereditary results.

Barriers and facilitators to engagement in care and medication adherence for women living with HIV in the Southern United States.

Women living in the South have the second highest rate of HIV and the lowest rate of viral suppression among women in all regions in the United States (U.S.). Viral suppression is achieved by successfully linking women to HIV care and supporting adherence to antiretroviral therapy (ART). We aimed to qualitatively explore perceived barriers and facilitators to HIV care engagement and ART adherence among women living with HIV in the South. Participants (N = 40) were recruited across a broad geographic area of the South, assisted by a location-specific Community/Clinician Advisory Board (CCAB). Qualitative research methods were used to generate in-depth descriptions of women's experiences in accessing HIV care and adhering to ART. Intrapersonal qualities expressed through resilience and self-efficacy were amongst the most prominent themes for both engagement in care and adherence to medications. Structural barriers such as transportation and distance to care continued to be a barrier to engagement, while medication delivery facilitated adherence. Conclusion: Our findings highlight the complexity and interrelated nature of factors impacting care and adherence. Multilevel interventions that incorporate structural factors in addition to individual-level behavioral change are needed to facilitate engagement in care and adherence to ART.

Peer advice for women living with HIV in the Southern USA.

Peer advice can provide emotional, social and practical assistance for the sustained self-management of chronic conditions. For stigmatised diseases such as HIV, finding support can be challenging. Women living with HIV in the Southern USA are additionally impacted upon by region-specific barriers such as stigma, poverty and limited access to services. The effectiveness of peer advice has been studied, yet little is known about the advice shared amongst women living with HIV. Therefore, we aimed to qualitatively explore the context and content of the advice participants offered to other women. With the assistance of a Community Clinician Advisory Board, women were recruited from across the US Centers for Disease Control and Prevention South Census Region. In-depth interviews were conducted with (N = 40) participants, aged 23 to 72 years (M = 51.2). Qualitative inductive thematic analysis was used to explore both the solicited and unprompted advice shared during individual interviews. Analysis of interview transcripts revealed three advice themes: Consistency in disease management Practical, non-medical advice; and Emotional and social support. The findings are valuable in shaping future peer-delivered programmes and interventions to enhance HIV care engagement, medication adherence, and the well-being of women living with HIV in the Southern USA.

On the role of organic matter composition in fresh-water kaolinite flocculation.

Organic matter has long been understood to affect fine sediment flocculation, yet the specific effects of different types of organic matter remain only partially understood. To address this knowledge gap, laboratory tank experiments were conducted in fresh water to investigate the sensitivity of kaolinite flocculation to varying organic matter species and contents. Three species of organic matter (xanthan gum, guar gum and humic acid) were investigated at varying concentrations. Results revealed a significant enhancement in kaolinite flocculation when organic polymers (xanthan gum and guar gum) were introduced. In contrast, the addition of humic acid had minimal influence on aggregation and floc structure. Notably, the nonionic polymer guar gum demonstrated greater efficacy in promoting the development of floc size compared to the anionic polymer, xanthan gum. We observed non-linear trends in the evolution of mean floc size (Dm) and boundary fractal dimension (Np) with increasing ratios of organic polymer concentration to kaolinite concentration. Initially, increasing polymer content facilitated the formation of larger and more fractal flocs. However, beyond a certain threshold, further increases in polymer content hindered flocculation and even led to the break-up of macro-flocs, resulting in the formation of more spherical and compact flocs. We further quantified the co-relationships between floc Np and Dm and found that larger Np values corresponded to larger Dm. These findings highlight the significant impact of organic matter species and concentrations on floc size, shape and structure, and shed light on the complex dynamics of fine sediment and associated nutrients and contaminants in fluvial systems.

The relationship of PrEP beliefs to perceived personal, interpersonal and structural benefits and barriers to PrEP use in women who inject drugs.

BACKGROUND: Women who inject drugs (WWID) have significant biological, behavioral, and gender-based barriers to accessing HIV prevention services, including Pre-Exposure Prophylaxis (PrEP) medication. Little is known about how beliefs about PrEP impact both perceived barriers and benefits of PrEP use and how they may be related to the decision-making process. METHODS: Surveys were conducted with 100 female clients of a large syringe services program in Philadelphia, Pennsylvania. The sample was categorized into three groups based on mean PrEP beliefs scores using terciles: accurate beliefs, moderately accurate beliefs, and inaccurate beliefs. Oneway ANOVA tests were used to compare groups by perceived benefits and barriers to PrEP, drug use stigma, healthcare beliefs, patient self-advocacy, and intention to use PrEP. RESULTS: Participants had a mean age of 39 years (SD 9.00), 66% reported being White, 74% finished high school, and 80% reported having been homeless within the past 6 months. Those with the most accurate PrEP beliefs reported highest intent to use PrEP and were more likely to agree that benefits of PrEP included it preventing HIV and helping them "feel in charge". Those with inaccurate beliefs were more likely to strongly agree that barriers, such as fear of reprisal from a partner, potential theft, or feeling they "might get HIV anyway", were reasons not to use PrEP. CONCLUSIONS: Results indicate perceived personal, interpersonal and structural barriers to PrEP use are associated with accuracy of beliefs is, pointing to important intervention targets to increase uptake among WWID.

Implementation strategies to screen, refer and link women involved in the carceral system to PrEP for HIV prevention.

PURPOSE: Women involved in the carceral system (CS) experience several conditions that increase their risk for HIV (e.g. high rates of substance use, psychiatric disorders, histories of victimization). The purpose of this study is to explore perspectives on potential strategies to connect women in the CS to pre-exposure prophylaxis (PrEP) services. DESIGN/METHODOLOGY/APPROACH: This study conducted in-depth interviews with 27 women involved in the CS eligible for PrEP. Using vignettes, interviews explored attitudes, barriers and facilitators toward PrEP screening, referral and linkage facilitated via a CS stakeholder, an mHealth application or providing PrEP service referrals during detention via a navigator. FINDINGS: Most women were, on average, 41.3 years, from racial and ethnic minority groups (56% black/African American; 19% Latinx). Inductive thematic analysis revealed CS involved women expressed mostly positive attitudes toward CS-based PrEP implementation. Younger women were more accepting of and interested in mHealth interventions. Implementation facilitators included leveraging relationships with trusted allies (e.g. "peers") and existing systems collaborations. Recommended implementation strategies included providing HIV and PrEP-specific education and training for system stakeholders and addressing issues related to privacy, system mistrust and stigma. ORIGINALITY/VALUE: Results provide a critical foundation for the implementation of interventions to improve PrEP access for women involved in the CS and have important implications for implementation strategies for all adults involved in the CS. Improving access to PrEP among this population may also support progress toward addressing national disparities in PrEP uptake, where women, black and Latinx populations have substantial unmet need.

Integrating HPV Vaccination Within PrEP care Delivery for Underserved Populations: A Mixed Methods Feasibility Study.

Human Papillomavirus (HPV) vaccination is effective at preventing anal cancer, which disproportionally impacts gay/bisexual men (GBM) and transgender women (TGW). Vaccine coverage among GBM/TGW is insufficient to reduce anal cancer disparities. Federally qualified health centers (FQHCs) can increase reach and uptake of HPV vaccination by integrating and promoting HPV vaccination in ongoing HIV preventive care (e.g., Pre-exposure Prophylaxis [PrEP]). The purpose of the current study was to assess the feasibility and potential impact of integrating HPV vaccination with PrEP care. We conducted a mixed methods study of PrEP providers and staff (qualitative interviews, N = 9) and PrEP patients (quantitative survey, N = 88) at an FQHC in Philadelphia, Pennsylvania. Qualitative thematic analysis of PrEP provider/staff interviews was informed by the Exploration, Preparation, Implementation, Sustainment (EPIS) framework to identify and describe barriers and facilitators to HPV vaccination implementation. Quantitative analysis of PrEP patient survey was informed by the Information-Motivation-Behavioral Skills Model. Quantitative interviews resulted in 16 themes related to characteristics of the inner and outer clinic context. Barriers among providers included lack of focus on HPV in PrEP management guidelines, in metrics mandated by funding agencies, and in electronic medical record templates. Lack of anal cancer specific knowledge and motivation was identified in both PrEP patients and providers/staff. Providing HPV vaccination during routine PrEP visits was highly acceptable to both patients and providers. Based on these findings, we recommend several multi-level strategies to increase HPV vaccine uptake among PrEP patients.

Disparities in Shared Decision-Making Research and Practice: The Case for Black American Patients.

OBJECTIVE: The extent of shared decision making (SDM) use in the care of Black patients is limited. We explored preferences, needs, and challenges of Black patients to enhance SDM offerings. METHODS: We performed interviews with 32 Black patients receiving type 2 diabetes care in safety-net primary care practices caring predominantly for Black people. RESULTS: The following 4 themes emerged: preference for humanistic communication, need to account for the role of family in decision making, need for medical information sharing, and mistrust of clinicians. CONCLUSION: Given the dearth of research on SDM among ethnic and racial minorities, this study offers patient-perspective recommendations to improve SDM offerings for Black patients in primary care settings. To enhance SDM with Black patients, acknowledgment of the importance of storytelling as a strategy, to place medical information in a context that makes it meaningful and memorable, is recommended. Triadic SDM, in which family members are centrally involved in decision making, is preferred over classical dyadic SDM. There is a need to reconsider the universalism assumption underlying contemporary SDM models and the relevancy of current SDM practices that were developed mostly without the feedback of participants of ethnic, racial, and cultural minorities.Annals "Online First" article.

Adverse childhood event subtypes and routine diabetes care utilization among U.S. adults with Type 2 diabetes.

OBJECTIVE: Adverse childhood events (ACEs) have significant impacts on adulthood health, including greater risk of Type 2 diabetes (T2D). While there is a known connection to increased use of outpatient and emergency healthcare services, the potential role of ACEs in routine diabetes care utilization remains unclear. This study uses ACE subtypes to explain pathways to routine diabetes care utilization among adults with T2D. METHOD: Cross-sectional data were obtained from the 2019 Behavioral Risk Factor Surveillance System, a survey of a representative sample of U.S. adults. Eligible participants resided in a state that completed both the Adverse Childhood Experiences (ACEs) and Diabetes modules and were diagnosed with non-gestational diabetes (N = 9,904), of whom the majority were presumed to have T2D. Confirmatory factor analysis was used to test the measurement model for three ACE factors: household dysfunction, physical and emotional abuse, and sexual abuse. Structural equation modeling was used to relate factors to four routine diabetes care utilization outcomes. RESULTS: Factor loadings were strong, and fit indices indicated good measurement model and full structural model fits. In the full structural equation model, household dysfunction was associated with decreased likelihood of meeting frequency recommendations for A1C testing (ß = -0.22, p < .05) and foot exams (ß = -0.29, p < .01). Physical and emotional abuse were associated with greater likelihood of meeting A1C testing frequency recommendations (ß = 0.21, p < .05). CONCLUSION: Specific types of ACEs may differentially relate to routine diabetes care utilization in adulthood. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

Preliminary feasibility and acute physiological effects of a single session of upper limb vibration training for persons with spinal cord injury.

CONTEXT: Strong upper limb musculature is essential for persons with spinal cord injury (SCI) to operate a manual wheelchair and live independently. Targeted upper limb vibration may be a viable exercise modality to build muscle efficiently while eliminating some of the barriers associated with exercise for persons with SCI. OBJECTIVE: The purpose of this study was to assess preliminary feasibility of completing a single exercise session of upper limb vibration and compare the acute physiological effects to a single session of standard dumbbell resistance exercise. METHODS: Individuals with SCI performed seven upper limb exercises (1) isometrically using a vibrating dumbbell at 30 Hz for 60 s (n = 22) and (2) using a standard isotonic resistance protocol (n = 15). RESULTS: Nineteen (86.4%) of 22 participants were able to perform all vibration exercises at 30 Hz but hold time success rates varied from 33% (side flies and front raises) to 95% (internal rotation). No significant differences were found between vibration exercise and standard resistance protocol for blood lactate, power output, and heart rate (P > 0.05). Perceptions of the training were positive, with most participants (>70%) expressing interest to train with vibration in the future. CONCLUSIONS: Vibration training was not feasible for all participants, suggesting an individualized approach to starting weight and progression may be necessary. Similar acute physiological changes were seen between vibration exercise and standard resistance protocol, suggesting they could have similar benefits. Additional research is needed to determine if vibration exercise is feasible and beneficial to incorporate into a long-term training program.

"It's my frenemy": A qualitative exploration of knowledge and perceptions of fentanyl use during the COVID-19 pandemic in people who use drugs at a syringe services program in Philadelphia, PA.

Background: Exacerbated by the COVID-19 pandemic and the proliferation of fentanyl and fentanyl analogs, overdose deaths have surged in the United States, making it important to understand how individuals who use drugs experience and perceive the risks of fentanyl use and how it has changed during the COVID-19 pandemic. Methods: Twenty clients from a Philadelphia syringe services program completed a questionnaire and in-depth interview about their fentanyl experiences from January to March 2021. These interviews were transcribed and analyzed using thematic analysis methods. Results: Sixty percent of participants were female and racial/ethnic minority. Participants indicated they believed fentanyl use accounted for most Philadelphia opioid-related overdoses and understood that fentanyl was different from other opioids. Fentanyl use was characterized as "all-consuming" by taking over lives and inescapable. While most perceived their risk of fentanyl overdose as high, there was low interest in and reported use of harm reduction strategies such as fentanyl test strips. The COVID-19 pandemic was noted to have negative effects on fentanyl availability, use and overdose risk, as well as mental health effects that increase drug use. Conclusions: The divide between perceived risk and uptake of protective strategies could be driven by diminished self-efficacy as it relates to acting on and engaging with resources available at the syringe services program and represents a potential intervention target for harm reduction intervention uptake. But the COVID-19 pandemic has exacerbated risks due to fentanyl use, making an effective, accessible, and well-timed intervention important to address the disconnect between perceived overdose risk and use of preventive behaviors.

Religiosity and COVID-19: Impact on Use of Remote Worship and Changes in Self-Reported Social Support.

Objective: This study examines associations between changes in the use of remote worship services and changes in the types of social support among religious adults during the COVID-19 pandemic. Materials and Methods: Cross-sectional, web survey data (n = 461; 15 May to 6 July 2020) were collected during the COVID-19 pandemic. Multinomial logistic regression models calculated unadjusted odds of increases and decreases of three types of perceived social support from before to during COVID-19 based on remote worship use. Results: Adults who initiated use of remote worship had lower odds of gaining social support for personal problems (OR: 0.38; 95% CI: 0.19, 0.79) and greater odds of reporting less ease of getting practical help from neighbors (OR: 1.77; 95% CI: 1.04, 3.02) compared to adults who never used or stopped using remote worship. Adults who continued using remote worship services were more likely to report less ease of getting practical help from their neighbors (OR: 2.23; 95% CI: 1.17, 4.25) and decreased interest and concern felt from other people (OR: 2.62; 95% CI: 1.24, 5.51) than adults who never used or stopped using remote worship. Conclusions: Adults who initiated and continued using remote worship during the COVID-19 pandemic had poorer perceived social support outcomes relative to adults who never used or stopped using remote services. Despite continued engagement with their religious communities, adults participating in worship remotely may have had residual personal, emotional, and instrumental social support needs that remote worship did not mitigate.

Understanding Type 2 Diabetes Self-Management in Racial/Ethnic Minorities: Application of the Extended Parallel Processing Model and Sensemaking Theory in a Qualitative Study.

PURPOSE: The purpose of the study was to understand the role of perceived disease threat and self-efficacy in type 2 diabetes (T2DM) patients' self-management by using the extended parallel processing model (EPPM) and sensemaking theory. METHODS: Semistructured interviews (n = 25) were conducted with T2DM patients from an urban safety-net hospital. Participants were 50% male/female median age was 55 years and 76% were Black. Participants were categorized by EPPM group based on validated questionnaires (high/low disease threat [HT/LT]; high/low self-efficacy [HE/LE]). Nine were HT/HE, 7 HT/LE, 6 LT/HE, and 3 LT/LE. Interviews were transcribed and analyzed using inductive and deductive coding. Sensemaking theory was applied to contextualize and analyze data. RESULTS: Those with HT indicated threat fluctuated throughout diagnosis but that certain triggers (eg, diabetic complications) drove changes in disease view. Those in the HT/HE group more frequently expressed disease acceptance, whereas the HT/LE group more often expressed anger or denial. HT/HE participants expressed having adequate social support and higher trust in health care providers. HT/LE participants reported limited problem-solving skills. In those with LT, the HE group took more ownership of self-management behaviors. The LT/LE group had heightened positive and negative emotional responses that appeared to limit their ability to perform self-care. They also less frequently described problem-solving skills, instead expressing reliance on medical guidance from their providers. CONCLUSIONS: EPPM and sensemaking theory are effective frameworks for understanding how perceived health threat and self-efficacy may impede T2DM self-care. A greater focus on these constructs is needed to improve care among low-income minority patients, especially those with low threat and self-efficacy.

"We figured it out as we went along": Staff perspectives of COVID-19 response efforts at a large North American syringe services programme.

Syringe services programmes face operational challenges to provide life-sustaining services to people who use substances and those who have substance use disorders. COVID-19 has disrupted operations at these programmes and is a threat to people with substance use disorder because of severe poverty, de-prioritisation of COVID-19 safety and high prevalence of comorbidities. This phenomenological qualitative study describes 16 in-depth interviews with staff of one of the largest syringe services programme in North America-Prevention Point Philadelphia, located in the Kensington neighbourhood of Philadelphia, Pennsylvania. Interviews were conducted from December 2020 to February 2021, audio-recorded, transcribed and coded to develop a thematic framework. Participants were mostly white (71.4%) and female (68.8%) with a median age of 31.5. Three main and four sub-themes related to the impact of COVID-19 on the syringe services programme were identified: (1) COVID-19 altered services provision (sub-theme: select service changes should be retained); (2) unclear or absent COVID-19 response guidance which compromised mitigation (sub-themes: COVID-19 messaging was difficult to translate to practice, learn-as-we-go); and (3) staff and clients experienced elevated mental anguish during the pandemic (sub-theme: already limited resources were further strained). COVID-19 presented complex challenges to an organisation normally strained in pre-pandemic times. A staff culture of resourcefulness and resiliency aided the syringe services programme to balance client needs and staff safety. However, staff experienced a serious psychological impact, largely attributable to being unable to find reprieve from the stressors of COVID-19 and the difficulties associated with navigating and acting-on contradictory public health messaging. Staff also shared a belief that the relaxing of some pre-pandemic barriers allowed staff to link clients more readily with services. Syringe services programmes should embrace the potential for lasting changes to health services delivery brought about by wide-scale changes in service provisions because of COVID-19.

Toward Developing a Powered Ankle-Foot Prosthesis With Electromyographic Control to Enhance Functional Performance: A Case Study in a U.S. Service Member.

The only commercially available ankle-foot prosthesis with powered propulsion lacks ruggedization and other capabilities for service members seeking to return to duty and/or other physically demanding activities. Here, we evaluated a ruggedized powered ankle-foot prosthesis with electromyographic control ("Warrior Ankle"; WA) in an experienced male user of the predicate (Empower) prosthesis. The participant (age = 56 years, mass = 86.8 kg, stature = 173 cm) completed a 650 m simulated hike with varying terrain at a fixed, self-selected speed in the WA and predicate prosthesis, with and without a 22.8 kg weighted vest ("loaded" and "unloaded," respectively). Peak dorsiflexion and plantarflexion angles were extracted from each gait cycle throughout the simulated hike (∼500 prosthetic-side steps). The participant walked faster with the WA (1.15 m/s) compared to predicate (0.80 m/s) prosthesis. On the prosthetic side, peak dorsiflexion angles were larger for the WA (loaded: 27.9°; unloaded: 26.9°) compared to the predicate (loaded: 19.4°; unloaded: 21.3°); peak plantarflexion angles were similar between prostheses and loading conditions [WA (loaded: 15.5°; unloaded: 14.9°), predicate (loaded: 16.9°; unloaded: 14.8°). The WA better accommodated the varying terrain profile, evidenced by greater peak dorsiflexion angles, as well as dorsiflexion and plantarflexion angles that more closely matched or exceeded those of the innate ankle [dorsiflexion (WA: 31.6°, predicate: 27.5°); plantarflexion (WA: 20.7°, predicate: 20.5°)]. Furthermore, the WA facilitated a faster walking speed, suggesting a greater functional capacity with the WA prosthesis. Although further design enhancements are needed, this case study demonstrated feasibility of a proof-of-concept, ruggedized powered ankle-foot prosthesis with electromyographic control.

The Role of Medical Mistrust in Concerns about Tumor Genomic Profiling among Black and African American Cancer Patients.

Tumor genomic profiling (TGP) is used in oncology practice to optimize cancer treatment and improve survival rates. However, TGP is underutilized among Black and African American (AA) patients, creating potential disparities in cancer treatment outcomes. Cost, accuracy, and privacy are barriers to genetic testing, but medical mistrust (MM) may also influence how Black and AA cancer patients perceive TGP. From December 2019 to February 2020, 112 Black and AA adults from two outpatient oncology sites in Philadelphia, PA without a known history of having TGP testing conducted completed a cross-sectional survey. Items queried included sociodemographic characteristics, clinical factors, patient-oncologist relationship quality, medical mistrust, and concerns about TGP. A k-means cluster analysis revealed two distinct psychographic clusters: high (MM-H) versus low (MM-L) medical mistrust. Clusters were not associated with any sociodemographic or clinical factors, except for age (MM-H patients older than MM-L patients, p = 0.006). Eleven TGP concerns were assessed; MM-H patients expressed greater concerns than MM-L patients, including distrust of the government, insurance carriers, and pharmaceutical companies. TGP concerns varied significantly based on level of medical mistrust, irrespective of sociodemographic characteristics. Targeted communications addressing TGP concerns may mitigate disparities in TGP uptake among those with medical mistrust.

Mapping Perceptual Differences to Understand COVID-19 Beliefs in Those with Vaccine Hesitancy.

Thirty percent of US adults are COVID-19 vaccine hesitant, but little is known about them beyond demographics. We used segmentation and perceptual mapping techniques to assess perceptual differences in unvaccinated, vaccine hesitant adults in Philadelphia, PA (n = 110) who answered a cross-sectional survey in-person or online. The sample was 54% ethnic minority, 65% female, 55% earned less than $25,000 with a mean age of 44. K-means cluster analysis identified three audience segments based on reported trust of healthcare providers and personal COVID-19 impact (High Trust/Low impact [n = 34], Moderate Trust/High impact [n = 39], Low Trust/Low impact [n = 23]). Multidimensional scaling analysis created three-dimensional perceptual maps to understand differences in COVID-19 and vaccine perceptions. The Low Trust/Low Impact group showed higher agreement with items related to COVID-19 being a hoax (p = .034) and that minorities should be suspicious of government information (p = .009). Maps indicate vaccine messaging for all groups would need to acknowledge these items, but added messaging about trust of pharmaceutical companies, belief that COVID messages keep changing or that vaccines are not safe would also need to be addressed to reach different segments. This may be more effective than current messaging that highlights personal responsibility or protection of others.