Mental Health Among Puerto Rican Adolescents Living in the United States During the COVID-19 Pandemic.

OBJECTIVES: The present study examined how different family level (family financial stress, family violence) and individual (food insecurity, gender, race) determinants of health were associated with mental health among Puerto Rican adolescents living in the U.S. during the COVID-19 pandemic. METHOD: A sample consisting of 119 Puerto Rican adolescents, aged 13 to 17, was collected via Qualtrics Panels between November 2020 and January 2021. We examined the association between family financial stress experienced during the pandemic and psychological distress. We also evaluated whether the association between family financial stress and psychological distress was moderated by family violence, food insecurity, and the participant's gender and race. RESULTS: Findings showed that food insecurity positively predicted psychological distress. Results also showed that participants' race moderated the association between family financial stress and psychological distress. Specifically, we found that while there was a significant positive association between family financial stress and psychological distress among Puerto Rican adolescents who identified as a racial minority, this association was nonsignificant among White Puerto Rican adolescents. CONCLUSION: Our research highlights the significant role of COVID-19 related family financial stress and food insecurity on Puerto Rican adolescents' poor mental health during the COVID-19 pandemic.

Perceived balance and self-reported falls: A retrospective cross-sectional study using the National Health and Aging Trend Study.

AIMS: To examine how perceived balance problems are associated with self-reported falls in the past month after controlling for known correlates of falls among older adults. BACKGROUND: Approximately 30% of adults age 65 and older fall each year. Most accidental falls are preventable, and older adults' engagement in fall prevention is imperative. Limited research suggest that older adults do not use the term 'fall risk' to describe their risk for falls. Instead, they commonly use the term 'balance problems'. Yet, commonly used fall risk assessment tools in both primary and acute care do not assess older adults' perceived balance. DESIGN AND METHOD: The Health Belief Model and the concept of perceived susceptibility served as the theoretical framework. A retrospective, cross-sectional secondary analysis using data from the National Health and Aging Trends Study from year 2015 was conducted. The outcome variable was self-reported falls in the last month. RESULTS: A subsample of independently living participants (N = 7499) was selected, and 10.3% of the sample reported a fall. Multiple logistic regression analysis revealed that the odds of reporting a fall in the past month was 3.4 times (p < .001) greater for participants who self-reported having a balance problem compared to those who did not. In contrast, fear of falling and perceived memory problems were not uniquely associated with falls. Using a mobility device, reporting pain, poor self-rated health status, depression and anxiety scores were also associated with falling. CONCLUSION AND IMPLICATIONS: Older adults' perceived balance problem is strongly associated with their fall risk. Perceived balance may be important to discuss with older adults to increase identification of fall risk. Older adults' perceived balance should be included in nursing fall risk assessments and fall prevention interventions. A focus on balance may increase older adults' engagement in fall prevention.

Feasibility of the Remembering Warmth and Safeness Intervention in older ADRD caregivers.

BACKGROUND: The number of older adults in the U.S. living with ADRD is projected to increase dramatically by 2060. As older adults increasingly assume informal caregiving responsibilities, community-based intervention to sustain caregiver well-being is a dementia research priority. OBJECTIVE: To evaluate the feasibility of the RWSI among older ADRD caregivers. The RWSI is informed by the Neurovisceral Integration Model, in which memories that engage safety signals cultivate feelings of safety and well-being. METHODS: A within-subjects pre/post-intervention design with older ADRD caregivers to evaluate feasibility (acceptability, demand, fidelity) and empirical promise (well-being). RESULTS: The feasibility of the RWSI, implemented with fidelity, was strongly endorsed, as participants attended each intervention session, after which reported experiencing feelings of warmth and safeness, and provided the highest possible acceptability ratings. Participant narratives provided corroboration. DISCUSSION: Findings support the feasibility of the RWSI in older ADRD caregivers, providing the basis for continued research.

Compassion fatigue and COVID-19: A global view from nurses.

BACKGROUND: Due to the rapid spread of COVID-19 variants, the number of people hospitalized for COVID-19 may create psychological burdens on nurses. Nurses with high levels of compassion fatigue (CF) are more likely to make work errors, deliver poor-quality care, and have greater intent to leave their position. OBJECTIVES: This study utilized the social-ecological model to examine factors associated with nurses' CF and compassion satisfaction (CS) during the COVID-19 pandemic. METHODS: Data were collected from the United States, Japan, and South Korea from July to December 2020. The Professional Quality of Life Scale was used to measure burnout (BO), secondary traumatic stress (STS), and CS. RESULTS: Data from 662 responses were used in the analysis. Mean scores were 25.04 (±6.44) for BO, 24.81 (±6.43) for STS, and 37.85 (±7.67) for CS. Multiple regression analyses indicated that resilience and intention to leave nursing were related to each study outcome (i.e., BO, STS, and CS). Greater resilience predicted lower BO and STS but greater CS, whereas intention to leave nursing indicated greater BO and STS, but lower CS. Furthermore, intrapersonal factors and organizational factors (i.e., nurses involved in developing policies to prepare for COVID-19 patients, organizational support, and personal protective equipment [PPE] provisions) were related to BO, STS, and CS. LINKING EVIDENCE TO PRACTICE: To promote nurses' psychological well-being, improvement of organizational factors such as support, PPE, and programs to enhance resilience is recommended to prepare for future emerging infectious disease crises.

Aging through the time of COVID-19: a survey of self-reported healthcare access.

BACKGROUND: Chronic conditions are common and require ongoing continuous management and preventive measures. The COVID-19 pandemic may have affected the management of chronic conditions by delaying care. We sought to understand the impact of personal characteristics (i.e., age) and healthcare factors (i.e., access to a provider) on healthcare access in a sample of Americans 50 years of age or older during COVID-19. METHOD: Participants completed an online survey at the start of the COVID-19 pandemic - the Aging in the Time of COVID Survey. Questions focused on health status, health care access, COVID-19 fear, and social connectedness. Participants were recruited through social media advertisements, list serves, and snowball sampling. Data collection started in early April 2020 and concluded in late May 2020. Logistic regression models examined the results of two key access points: healthcare provider/doctor (n = 481) and medication (n = 765), with 56 and 93% of participants reporting access to a provider and medications, respectively. RESULTS: Individuals with an established primary care provider were much more likely to obtain access to a healthcare provider, OR = 3.81 (95% CI: 1.69, 8.77), and to receive medication, OR = 4.48 (95% CI: 1.61, 11.48), during the time of COVID-19. In addition, access to medication was (a) higher for those who were older, OR = 1.05 (95% CI: 1.01, 1.09), had a higher income (greater than 100 k compared to less than 50 k, OR = 3.04 (95% CI: 1.11, 8.98), and (b) lower for those having caregiving responsibilities, OR = 0.41 (95% CI: 0.21, 0.78), or greater social isolation, OR = 0.93 (95% CI: 0.87, 0.98). CONCLUSIONS: Although most participants had access to medication, just over half had access to a healthcare provider when needed. Notably, health-seeking behaviors for individuals who do not have an established primary care providers as well as those who provide unpaid care, are socially isolated, and younger may require more proactive approaches to care monitoring, management, and maintenance.

COVID-19 worry, mental health indicators, and preparedness for future care needs across the adult lifespan.

OBJECTIVE: The COVID-19 pandemic has been a source of worry for many, but older adults have been identified as more vulnerable to serious cases and may therefore feel more concerned about the virus. We assessed whether COVID-19 worry was related to indicators of mental health and preparedness for future care, in an adult lifespan sample. METHOD: An online study (n = 485; age 18-82, M = 49.31, SD = 15.39) included measures of COVID-19 worry, depression, general anxiety, health anxiety, hostile and benevolent ageism, preparedness for future care, and demographic information. RESULTS: Age and living alone were positively associated with greater COVID-19 worry, as were health anxiety, general anxiety, benevolent ageism, and preparedness for future care needs via gathering information. A significant interaction indicated that among individuals reporting lower health anxiety, greater preference for gathering information was positively associated with greater COVID-19 worry; however, for individuals having high health anxiety, gathering information about future care was not related to COVID-19 worry, as their COVID-19 worry levels were moderately high. CONCLUSION: Older age was associated with greater COVID-19 worry, perhaps in response to the much publicized greater risk for negative outcomes in this population. In spite of this specific concern, indicators of older adults' continued mental health emerged. Preparedness for future care is also highlighted, as well as clinical implications.

Senior WISE intervention: Gender differences in bodily pain and trait anxiety.

PURPOSE: In this secondary analysis we tested whether 12 h of Senior WISE (Wisdom Is Simply Exploration) memory or health training with older adults would produce better outcomes by gender in perceptions of anxiety and bodily pain and whether the effects of the Senior WISE training on pain were mediated by anxiety. DESIGN: An implemented Phase III randomized clinical trial with follow up for 24 months in Central Texas. The sample was mostly female (79%), 71% Caucasian, 17% Hispanic, and 12% African American with an average age of 75 and 13 years of education. RESULTS: The effects of the memory intervention on anxiety were consistent across time, with effects present for males but not females at post-treatment and end-of-study. Although males had more anxiety in the health promotion group, the memory training reduced males' anxiety such that no gender difference was present in this group. The Senior WISE intervention reduced pain for both males and females at post-intervention but not at end-of-study. Although gender differences did not depend on the treatment group for pain, females reported somewhat, but not significantly, less pain at post-treatment and end-of-study. Mediation analysis indicated that, for males, the memory intervention indirectly affected pain at post-treatment, in part, by reducing anxiety, which lowered pain. However, at end-of-study, no indirect effect was present. Males responded to memory training. Training tailored to gender may increase the efficacy of the programs and "buy-in" from male participants, especially if tailored to anxiety and pain.

Nurses' resilience in the face of coronavirus (COVID-19): An international view.

The purpose of this cross-sectional study was to examine factors associated with nurses' resilience during the COVID-19 pandemic. Data were collected in the latter half of 2020 from 904 nurses across Japan, Republic of Korea, Republic of Turkey, and the United States. The questionnaire included the Connor-Davidson Resilience Scale 10, plus demographics and 20 questions about practice environment, workplace safety concerning infection control, COVID-related experience, and organizational support. Fear of becoming infected, intention to leave nursing, and having had a positive COVID-19 test were inversely associated with resilience (p < 0.05). Regression analysis indicated that U.S. nurses had significantly greater resilience than nurses in the other countries examined (p < 0.001). Nurses reporting organization support and those who participated in policy and procedure development had higher resilience scores (p < 0.01). Organizational support, involving nurses in policy development, and country of practice were found to be important resilience factors in our research, which aligns with other findings. Further research is recommended to determine the optimal practice environment to support nurse resilience.

Age-Based Healthcare Stereotype Threat during the COVID-19 Pandemic.

Older adults have been identified as a high-risk population for COVID-19 by the United States Centers for Disease Control and Prevention (CDC). Though well-intentioned, this nonspecific designation highlights stereotypes of older adults as frail and in need of protection, exacerbating negative age-based stereotypes that can have adverse effects on older adults' well-being. Healthcare stereotype threat (HCST) is concern about being judged by providers and receiving biased medical treatment based on stereotypes about one's identity - in this case age. Given the attention to older adults' physical vulnerabilities during the COVID-19 pandemic, older adults may be especially worried about age-based judgments from medical providers and sensitive to ageist attitudes about COVID-19. Online data collection (April 13 to May 15, 2020) with adults aged 50 and older (N = 2325, M = 63.11, SD = 7.53) examined age-based HCST. Respondents who worried that healthcare providers judged them based on age (n = 584) also reported more negative COVID-19 reactions, including perceived indifference toward older adults, young adults' lack of concern about health, and unfavorable media coverage of older adults. The results highlight the intersection of two pandemics: COVID-19 and ageism. We close with consideration of the clinical implications of the results.

The Performance of Multivariate Methods for Two-Group Comparisons with Small Samples and Incomplete Data.

In intervention studies having multiple outcomes, researchers often use a series of univariate tests (e.g., ANOVAs) to assess group mean differences. Previous research found that this approach properly controls Type I error and generally provides greater power compared to MANOVA, especially under realistic effect size and correlation combinations. However, when group differences are assessed for a specific outcome, these procedures are strictly univariate and do not consider the outcome correlations, which may be problematic with missing outcome data. Linear mixed or multivariate multilevel models (MVMMs), implemented with maximum likelihood estimation, present an alternative analysis option where outcome correlations are taken into account when specific group mean differences are estimated. In this study, we use simulation methods to compare the performance of separate independent samples t tests estimated with ordinary least squares and analogous t tests from MVMMs to assess two-group mean differences with multiple outcomes under small sample and missingness conditions. Study results indicated that a MVMM implemented with restricted maximum likelihood estimation combined with the Kenward-Roger correction had the best performance. Therefore, for intervention studies with small N and normally distributed multivariate outcomes, the Kenward-Roger procedure is recommended over traditional methods and conventional MVMM analyses, particularly with incomplete data.

Psychosocial Barriers to Pre-exposure Prophylaxis (PrEP) Uptake: The Roles of Heterosexual Self-Presentation, Sexual Risk, and Perceived Peer PrEP Use.

Several challenges have emerged in ensuring uptake of preexposure prophylaxis (PrEP) for HIV prevention. By applying the health belief model, the present study assessed associations between novel psychosocial variables and PrEP use among gay and bisexual men. Logistic regression analyses indicated that heterosexual self-presentation, sexual risk, PrEP conspiracy beliefs, and perceived peer PrEP use were positively associated with PrEP use. Greater understanding of the psychosocial barriers to PrEP use for unique at-risk populations can facilitate the development of socially informed prevention strategies.

Memory performance and affect: are there gender differences in community-residing older adults?

After age 65, the incidence of episodic memory decline in males is greater than in females. We explored the influence of anxiety and depression on objective and subjective memory performance in a diverse sample of community-residing older adults. The study was a secondary analysis of data on three samples of adults from two states, Ohio and Texas: a community sample (n = 177); a retirement community sample (n = 97); and the SeniorWISE Study (n = 265). The sample of 529 adults was 74% female, the average age was 76.58 years (range = 59-100 years), and educational attainment was 13.12 years (±3.68); 68% were Caucasian, and 17% had depressive symptoms. We found no memory performance differences by gender. Males and females were similarly classified into the four memory performance groups, with almost half of each gender in the poor memory category. Even though males had greater years of education, they used fewer compensatory memory strategies. The observed gender differences in memory were subjective evaluations, specifically metamemory. Age was not a significant predictor of cognition or memory performance, nor did males have greater memory impairment than females.

The Effects of Exergame Telerehabilitation in Persons With Subjective Cognitive Decline.

BACKGROUND AND OBJECTIVES: The primary aim of this Stage IB randomized controlled trial (RCT) was to test the preliminary effects of a dual-task exergaming telerehabilitation intervention on cognition and aerobic fitness, compared to aerobic exercise (AEx) only and attention control (stretching) in older adults with subjective cognitive decline. RESEARCH DESIGN AND METHODS: This RCT randomized 39 participants on a 2:1:1 allocation ratio to supervised exergame (n = 20), AEx (n = 11), and stretching (n = 8) for 12 weeks. The dual-task exergaming was concurrent moderate-intensity cycling and BrainFitRx cognitive telerehabilitation. Cognition was assessed by NIH Toolbox Cognitive Battery and aerobic fitness by 6-minute walk test (6MWT) and shuttle walk test. RESULTS: The participants were 74.6 (7.4) years old and 69% were female. The effect of time was significant, F(1, 23.9) = 13.16, p = .001, for the Fluid Composite score, and significant within-group changes were seen for the exergame group, t(14.08) = 2.53, p = .024, d = 0.33. Between-group changes did not reach significant levels for any cognitive test. Between-group changes for the 6MWT were not significant. DISCUSSION AND IMPLICATIONS: The exergame participants further improved their fluid cognition, whereas the AEx and stretching groups did not, indicating a potential synergistic effect from AEx and cognitive training. The aerobic fitness changes were similar between the exergame and AEx-only groups, indicating that the feasibility of adding cognitive training to AEx concurrently without sacrificing gains in aerobic fitness from AEx. This study shows the flexibility of exergame delivery and its potentially therapeutic effects in persons at risk for Alzheimer's dementia. CLINICAL TRIAL REGISTRATION NUMBER: NCT04311736.

Perceived Balance, Balance Performance, and Falls Among Community-Dwelling Older Adults: A Retrospective, Cross-Sectional Study.

Objectives: To examine the extent to which older adults' perceived balance, a balance performance test, and fear of falling (FOF) were associated with falls in the last month. Methods: The Health Belief Model served as the theoretical framework. A retrospective, cross-sectional, secondary analysis using data from the National Health and Aging Trends Study was conducted (N = 7499). Results: Multiple logistic regression analysis revealed that the odds of reporting a fall in the past month were 3.3 times (p < .001) greater for participants who self-reported having a balance problem compared to those who did not. The Short Physical Performance Battery and FOF were not uniquely associated with falls. Discussion: Our findings support limited evidence suggesting that older adults' perceived balance is a better predictor of falls than balance performance. Assessing older adults' perceived balance may be a new way to assess older adults' fall risk to prevent future falls.

Relations Between Cardiorespiratory Fitness and Cognition in Older Adults With Amnestic Mild Cognitive Impairment From the Aerobic Exercise and Cognitive Training (ACT) Trial: Sex Differences.

Objective: To examine the associations of cardiorespiratory fitness with executive function, episodic memory, and global cognition and sex differences in these associations in community-dwelling older adults with amnestic mild cognitive impairment. Design: A cross-sectional study using baseline data from the aerobic exercise and cognitive training (ACT) trial. Setting: The ACT trial conducted exercise testing in an exercise laboratory and data collections in a research facility. Participants: ACT trial participants were recruited through referrals, registries, exhibits, flyers, media, and advertisements and screened for eligibility. To be eligible for this study, ACT enrollees needed complete data on all study variables. Among 146 ACT enrollees, 142 met eligibility for this study (N=142). Interventions: None. Main Outcome Measures: Cardiorespiratory fitness was measured as peak oxygen consumption (Vo2peak) with a peak cycle-ergometer test, executive function with the EXAMINER, episodic memory with the Brief Visuospatial Memory Test-Revised, and global cognition with Montreal Cognitive Assessment. Results: The average age of the sample was 73.8±5.8 years with 16.9±2.9 years of education, with 87.3% White, 51.4% men, and 69.7% married. After controlling for covariates, Vo2peak was significantly related to executive function (b=.037, standard error [SE]=0.015, P=.0154, semipartial [sr] correlation coefficient=.239) and episodic memory (b=.590, SE=0.226, P=.0102, sr=.216), but not global cognition (b=.074, SE=0.055, P=.1837, sr=.125). For men, Vo2peak was significantly associated with executive function (b=.063, SE=0.024, P=.0099, r=.430) and episodic memory (b=1.088, SE=0.312, P=.0009, r=.382). Conclusions: Our findings show that Vo2peak was associated with executive function and episodic memory in the overall sample and in men. Future studies can examine the longitudinal relations between cardiorespiratory fitness and cognition.

A test of pre-exposure spacing and multiple context pre-exposure on the mechanisms of latent inhibition of dental fear: A study protocol.

BACKGROUND: Latent inhibition occurs when exposure to a stimulus prior its direct associative conditioning impairs learning. Results from naturalistic studies suggest that latent inhibition disrupts the learning of dental fear from aversive associative conditioning and thereby reduces the development of dental phobia. Although theory suggests latent inhibition occurs because pre-exposure changes the expected relevance and attention directed to the pre-exposed stimulus, evidence supporting these mechanisms in humans is limited. The aim of this study is to determine if two variables, pre-exposure session spacing and multiple context pre-exposure, potentiate the hypothesized mechanisms of expected relevance and attention and, in turn, increase latent inhibition of dental fear. METHODS: In a virtual reality simulation, child and adult community members (ages 6 to 35) will take part in pre-exposure and conditioning trials, followed by short- and long-term tests of learning. A 100ms puff of 60 psi air to a maxillary anterior tooth will serve as the unconditioned stimulus. Pre-exposure session spacing (no spacing vs. sessions spaced) and multiple context pre-exposure (single context vs. multiple contexts) will be between-subject factors. Stimulus type (pre-exposed to-be conditioned stimulus, a non-pre-exposed conditioned stimulus, and an unpaired control stimulus) and trial will serve as within-subject factors. Baseline pain sensitivity will also be measured as a potential moderator. DISCUSSION: It is hypothesized that spaced pre-exposure and pre-exposure in multiple contexts will increase the engagement of the mechanisms of expected relevance and attention and increase the latent inhibition of dental fear. It is expected that the findings will add to theory on fear learning and provide information to aid the design of future interventions that leverage latent inhibition to reduce dental phobia.

The associations between type 2 diabetes and plasma biomarkers of Alzheimer's disease in the Health and Aging Brain Study: Health Disparities (HABS-HD).

Alzheimer's disease (AD) affects Latinos disproportionately. One of the reasons underlying this disparity may be type 2 diabetes (T2D) that is a risk factor for AD. The purpose of this study was to examine the associations of T2D and AD blood biomarkers and the differences in these associations between Mexican Americans and non-Hispanic Whites. This study was a secondary analysis of baseline data from the observational Health and Aging Brain Study: Health Disparities (HABS-HD) that investigated factors underlying health disparities in AD in Mexican Americans in comparison to non-Hispanic Whites. HABS-HD participants were excluded if they had missing data or were large outliers (z-scores >|4|) on a given AD biomarker. Fasting blood glucose and glycosylated hemoglobin (HbA1c) levels were measured from clinical labs. T2D was diagnosed by licensed clinicians. Plasma amyloid-beta 42 and 40 (Aß42/42) ratio, total tau (t-tau), and neurofilament light (NfL) were measured via ultra-sensitive Simoa assays. The sample sizes were 1,552 for Aß42/40 ratio, 1,570 for t-tau, and 1,553 for NfL. Mexican Americans were younger (66.6±8.7 vs. 69.5±8.6) and had more female (64.9% female vs. 55.1%) and fewer years of schooling (9.5±4.6 vs. 15.6±2.5) than non-Hispanic Whites. Mexican Americans differed significantly from non-Hispanic Whites in blood glucose (113.5±36.6 vs. 99.2±17.0) and HbA1c (6.33±1.4 vs. 5.51±0.6) levels, T2D diagnosis (35.3% vs. 11.1%), as well as blood Aß42/40 ratio (.051±.012 vs. .047±.011), t-tau (2.56±.95 vs. 2.33±.90), and NfL levels (16.3±9.5 vs. 20.3±10.3). Blood glucose, blood HbA1c, and T2D diagnosis were not related to Aß42/40 ratio and t-tau but explained 3.7% of the variation in NfL (p < .001). Blood glucose and T2D diagnosis were not, while HbA1c was positively (b = 2.31, p < .001, ß = 0.26), associated with NfL among Mexican Americans. In contrast, blood glucose, HbA1c, and T2D diagnosis were negatively (b = -0.09, p < .01, ß = -0.26), not (b = 0.34, p = .71, ß = 0.04), and positively (b = 3.32, p < .01, ß = 0.33) associated with NfL, respectively in non-Hispanic Whites. To conclude, blood glucose and HbA1c levels and T2D diagnosis are associated with plasma NfL levels, but not plasma Aß and t-tau levels. These associations differ in an ethnicity-specific manner and need to be further studied as a potential mechanism underlying AD disparities.

A study protocol testing pre-exposure dose and compound pre-exposure on the mechanisms of latent inhibition of dental fear.

BACKGROUND: Dental stimuli can evoke fear after being paired - or conditioned - with aversive outcomes (e.g., pain). Pre-exposing the stimuli before conditioning can impair dental fear learning via a phenomenon known as latent inhibition. Theory suggests changes in expected relevance and attention are two mechanisms responsible for latent inhibition. In the proposed research, we test whether pre-exposure dose and degree of pre-exposure novelty potentiate changes in expected relevance and attention to a pre-exposed stimulus. We also assess if the manipulations alter latent inhibition and explore the possible moderating role of individual differences in pain sensitivity. METHODS: Participants will be healthy individuals across a wide range of ages (6 to 35 years), from two study sites. Participants will undergo pre-exposure and conditioning followed by both a short-term and long-term test of learning, all in a novel virtual reality environment. The unconditioned stimulus will be a brief pressurized puff of air to a maxillary anterior tooth. Pre-exposure dose (low vs. high) and pre-exposure novelty (element stimulus vs. compound stimuli) will be between-subject factors, with stimulus type (pre-exposed to-be conditioned stimulus, a non-pre-exposed conditioned stimulus, and an unpaired control stimulus) and trial as within-subject factors. Pain sensitivity will be measured through self-report and a cold pressor test. It is hypothesized that a larger dose of pre-exposure and compound pre-exposure will potentiate the engagement of the target mechanisms and thereby result in greater latent inhibition in the form of reduced fear learning. Further, it is hypothesized that larger effects will be observed in participants with greater baseline pain sensitivity. DISCUSSION: The proposed study will test whether pre-exposure dose and compound stimulus presentation change expected relevance and attention to the pre-exposed stimulus, and thereby enhance latent inhibition of dental fear. If found, the results will add to our theoretical understanding of the latent inhibition of dental fear and inform future interventions for dental phobia prevention.

Gastrointestinal and Neuropsychological Symptoms Are Associated With Distinct Vomiting Profiles in Patients Receiving Chemotherapy.

OBJECTIVES: To identify subgroups of patients with distinct chemotherapy-induced vomiting (CIV) profiles; determine how these subgroups differ on several demographic, clinical, and symptom characteristics; and evaluate factors associated with chemotherapy-induced nausea and CIV profiles. SAMPLE & SETTING: Adult patients (N = 1,338) receiving cancer chemotherapy. METHODS & VARIABLES: Data were collected on demographic, clinical, and symptom characteristics. Differences among subgroups of patients with distinct CIV profiles were evaluated using parametric and nonparametric tests. RESULTS: Three CIV profiles (None, Decreasing, and Increasing) were identified. Compared with the None class, Decreasing and Increasing classes were more likely to have lower household income and a higher comorbidity burden, as well as to report higher rates of dry mouth, nausea, diarrhea, depression, anxiety, sleep disturbance, morning fatigue, and pain interference. IMPLICATIONS FOR NURSING: Clinicians need to assess common and distinct risk factors for CIV and chemotherapy-induced nausea.

Distinct Nausea Profiles Are Associated With Gastrointestinal Symptoms in Oncology Patients Receiving Chemotherapy.

BACKGROUND: Unrelieved chemotherapy-induced nausea (CIN) occurs 48% of patients undergoing chemotherapy and is one of the most debilitating symptoms that patients report. OBJECTIVE: The aims of this study were to identify subgroups of patients with distinct CIN profiles and determine how these subgroups differed on demographic and clinical characteristics; severity, frequency, and distress of CIN; and the co-occurrence of common gastrointestinal symptoms. METHODS: Patients (n = 1343) completed demographic questionnaire and Memorial Symptom Assessment Scale 6 times over 2 cycles of chemotherapy. Latent class analysis was used to identify subgroups of patients with distinct CIN profiles. Differences among these subgroups were evaluated using parametric and nonparametric statistics. RESULTS: Four distinct CIN profiles were identified: none (40.8%), increasing-decreasing (21.5%), decreasing (8.9%), and high (28.8%). Compared with the none class, patients in the high class were younger, had a lower annual household income, had child care responsibilities, had a lower Karnofsky Performance Status score and a higher Self-administered Comorbidity Questionnaire score, and were more likely to have received chemotherapy on a 14-day cycle and a highly emetogenic chemotherapy regimen. In addition, patients in the high class reported high occurrence rates for dry mouth, feeling bloated, diarrhea, lack of appetite, abdominal cramps, difficulty swallowing, mouth sores, weight loss, and change in the way food tastes. CONCLUSIONS: That 60% of the patients reported moderate to high CIN occurrence rates confirms that this unrelieved symptom is a significant clinical problem. IMPLICATIONS FOR PRACTICE: Nurses need to evaluate patients' level of adherence to their antiemetic regimen and make appropriate referrals for physical therapy, psychological services, and dietary counseling.