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Interdiffusion-based macromolecular transport across glassy interfaces is reportedly achieved at high temperatures in accordance with the classical model of reptation. Here, for the first time, we report a new mechanistic pathway for achieving solid-state glassy joining by triggering rapid macromolecular acceleration through mechanical deformation. Large-scale molecular simulations reveal that active plastic deformation in glassy polymers, at temperatures well below the bulk (and surface) glass transition temperatures T g b (and T g s ), causes segmental translations of macromolecules leading to interfacial interpenetrations, and the formation of new entanglements. The mechanistic basis for this new type of bonding is identified as molecular-scale dilatations and densifications during deformation-induced mobility. The reported insights open promising avenues for achieving quick, strong, and energetically less-intensive joining of polymeric glasses across various sectors.
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BACKGROUND: People experiencing homelessness are at greater risk of exposure and poor health outcomes from COVID-19. However, little data exist on the prevalence and correlates of COVID-19 among homeless populations. To mitigate the spread and severity, uptake of the COVID-19 vaccine is needed. This can be challenging among youth experiencing homelessness who are more likely to be unvaccinated when compared to stably housed youth. OBJECTIVE: We conducted this study to determine the prevalence and correlates of COVID-19 among youth experiencing homelessness. METHODS: We examined experiences of COVID-19 symptoms, self-report of infection, and rates of COVID-19 antibodies and distinguished between natural and vaccinated immunity among youth experiencing homelessness ( N = 265) recruited in one large metropolitan area in the south. RESULTS: Based on self-report, very few participants experienced any symptoms, and 80% had never been diagnosed with COVID-19. Of those with COVID-19 antibodies (68%), the proportion with antibodies resulting from natural infection was 44%. The vaccination rate was 42%. Younger and vaccinated participants and those in shelters were likelier to have COVID-19 antibodies. Black and Hispanic youth were more likely than White youth to have had COVID-19. Those who adopted only one or two prevention behaviors were more likely to acquire a natural infection than those who adopted three or more prevention behaviors. DISCUSSION: Youth experiencing homelessness report low vaccination rates, disrupted access to healthcare and social supports, and underlying chronic conditions, which may explain why they face poorer outcomes when infected with COVID-19. Vaccination and risk mitigation strategies to combat the high prevalence of COVID-19 are especially needed for sheltered youth who are at high risk yet are often asymptomatic.
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Vacinas contra COVID-19 , COVID-19 , Jovens em Situação de Rua , Humanos , Masculino , Feminino , COVID-19/prevenção & controle , COVID-19/epidemiologia , Adolescente , Jovens em Situação de Rua/estatística & dados numéricos , Estados Unidos/epidemiologia , Adulto Jovem , Vacinas contra COVID-19/administração & dosagem , Vacinação/estatística & dados numéricos , SARS-CoV-2/imunologia , Pessoas Mal Alojadas/estatística & dados numéricos , Adulto , PrevalênciaRESUMO
BACKGROUND: Comprising nearly 35% of brain lipids, polyunsaturated fatty acids (PUFA) are essential for optimal brain function. However, the role of PUFA on cognitive health outcomes later in life is largely unknown. OBJECTIVE: We investigated prospective associations of plasma phospholipid omega-3 (ALA [18â:â3], EPA [20â:â5], DPA [22â:â5], DHA [22â:â6]) and omega-6 (LA [18â:â2], AA [20â:â4]) PUFA with cognitive decline, risk of cognitive impairment and dementia among adults aged≥65 years in the Cardiovascular Health Study. METHODS: Circulating fatty acid concentrations were measured serially at baseline (1992/1993), 6 years, and 13 years later. Cognitive decline and impairment were assessed using the 100-point Modified Mini-Mental State Examination (3MSE) up to 7 times. Clinical dementia was identified using adjudicated neuropsychological tests, and ICD-9 codes. RESULTS: Among 3,564 older adults free of stroke and dementia at baseline, cognitive function declined annually by approximately -0.5 3MSE points; 507 participants developed cognitive impairment and 499 dementia over up to 23 years of follow-up. In multivariable models, higher circulating arachidonic acid (AA) concentrations were associated with slower cognitive decline and lower dementia risk, with associations growing stronger with greater length of follow-up (hazard ratio [HR,95% CI] of dementia per interquintile range, 0.74 [0.56-0.97] at 5 years, and 0.53 [0.37-0.77] at 15 years). Circulating docosapentaenoic (DPA) concentrations were associated with slower cognitive decline and lower risk of cognitive impairment (extreme-quintile HR, 0.72 [95% CI: 0.55, 0.95]). Findings were generally null or inconsistent for other omega-3 or omega-6 PUFA. CONCLUSION: Circulating AA and DPA, but not other PUFA, are associated with slower rate of cognitive decline and lower risk of dementia or cognitive impairment later in life.
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Disfunção Cognitiva , Demência , Ácidos Graxos Ômega-3 , Humanos , Idoso , Ácidos Graxos Insaturados , Ácidos Graxos Ômega-6 , Disfunção Cognitiva/diagnóstico , Disfunção Cognitiva/epidemiologia , Ácido Araquidônico , Demência/diagnóstico , Demência/epidemiologia , Ácidos GraxosRESUMO
Background: The transition between nursing school and nursing practice has been well studied and recognized as a turbulent time for new nurses. Existing literature suggests that transition to practice (TTP) programs can successfully support new nurses through this challenging period. However, TTP program outcomes have not been studied related to the COVID-19 pandemic, which altered TTP experiences for many new nurses by limiting their access to clinical sites for hands-on patient care experience and shifting delivery of nursing education and TTP programs from in-person to virtual environments. Purpose: The purpose of this study was to analyze the associations between TTP outcomes and the COVID-19 pandemic. Methods: This was a retrospective correlational, longitudinal study using secondary analysis of Vizient /AACN Nurse Residency Program survey data from the Casey-Fink Graduate Nurse Experience Survey and the Nurse Resident Progression Survey. Self-reported data from new nurses in Southeast Texas who participated in a standardized TTP program before the COVID-19 pandemic (2017-2019) were compared with self-reported data from nurses who participated in the TTP program during the pandemic (2020 and 2021). Results: A total of 2,673 nurses participated in this study. When adjusting for demographic composition of the cohorts, statistically significant differences (p < .05) were identified in the advocacy, patient safety, and commitment outcomes with a decline in change scores from baseline to 12 months in the COVID-19 pandemic cohort compared to the pre-COVID-19 pandemic cohort. Conclusion: Our findings provide new information on the impact of the COVID-19 pandemic on new nurses' participating in a standardized TTP program. The results indicate that patient safety and commitment to staying employed in the organization and the nursing profession should be priority improvement areas for employers and TTP program staff as they work to support new nurses' TTP in a pandemic.
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BACKGROUND: The Attachment Style Questionnaire (ASQ) was developed to measure individual differences in insecure adult attachment and was suitable for populations that may have minimal or no experience in romantic relationships. The measure was previously validated on homogenous populations. OBJECTIVES: The purpose of this study was to verify construct validity and internal consistency of the ASQ among an ethnically and racially diverse sample of caregivers of young children ages birth to 3 years. METHODS: Using a cross-sectional design, we examined the psychometric properties of the ASQ. A racially and ethnically diverse sample of caregivers of young children (birth to 3 years old) completed the 40-item measure. Factor analyses and internal consistency analyses were conducted. RESULTS: Confirmatory factor analyses showed that the previously published factor structures were not a good fit for this diverse sample. Exploratory factor analysis with promax rotation revealed a four-factor solution among 16 items, including relationship anxiety, relationships as secondary, discomfort with closeness, and relationship distrust. Adequate internal consistency was noted for the factors, and structural invariance was confirmed across Hispanic and non-Hispanic ethnicities. DISCUSSION: Nurse scientists and practitioners should take caution when using or developing indices based on previous research. There should be consideration of structural stability and replication across the intended population.
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Pais , Adulto , Humanos , Criança , Pré-Escolar , Autorrelato , Estudos Transversais , Reprodutibilidade dos Testes , Inquéritos e Questionários , Psicometria , Análise FatorialRESUMO
This study examined the association between pressure injuries and complexity of abdominal temperature measured in residents of a nursing facility. The temperature served as a proxy measure for skin thermoregulation. Refined multiscale sample entropy and bubble entropy were used to measure the irregularity of the temperature time series measured over two days at 1-min intervals. Robust summary measures were derived for the multiscale entropies and used in predictive models for pressure injuries that were built with adaptive lasso regression and neural networks. Both types of entropies were lower in the group of participants with pressure injuries (n=11) relative to the group of non-injured participants (n=15). This was generally true at the longer temporal scales, with the effect peaking at scale τ=22 min for sample entropy and τ=23 min for bubble entropy. Predictive models for pressure injury on the basis of refined multiscale sample entropy and bubble entropy yielded 96% accuracy, outperforming predictions based on any single measure of entropy. Combining entropy measures with a widely used risk assessment score led to the best prediction accuracy. Complexity of the abdominal temperature series could therefore serve as an indicator of risk of pressure injury.
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BACKGROUND: People experiencing homelessness have higher rates of HIV than those who are stably housed. Mental health needs, substance use problems, and issues unique to homelessness such as lack of shelter and transiency need to be considered with regard to HIV prevention. To date, HIV prevention interventions for young adults experiencing homelessness have not specifically addressed modifiable real-time factors such as stress, sexual or drug use urge, or substance use, or been delivered at the time of heightened risk. Real-time, personalized HIV prevention messages may reduce HIV risk behaviors. OBJECTIVE: This pilot study tested the initial efficacy of an innovative, smartphone-based, just-in-time adaptive intervention that assessed predictors of HIV risk behaviors in real time and automatically provided behavioral feedback and goal attainment information. METHODS: A randomized attention control design was used among young adults experiencing homelessness, aged 18-25 years, recruited from shelters and drop-in centers in May 2019. Participants were randomized to either a control or an intervention group. The intervention (called MY-RID [Motivating Youth to Reduce Infection and Disconnection]) consisted of brief messages delivered via smartphone over 6 weeks in response to preidentified predictors that were assessed using ecological momentary assessments. Bayesian hierarchical regression models were used to assess intervention effects on sexual activity, drug use, alcohol use, and their corresponding urges. RESULTS: Participants (N=97) were predominantly youth (mean age 21.2, SD 2.1 years) who identified as heterosexual (n=51, 52%), male (n=56, 57%), and African American (n=56, 57%). Reports of sexual activity, drug use, alcohol use, stress, and all urges (ie, sexual, drug, alcohol) reduced over time in both groups. Daily drug use reduced by a factor of 13.8 times over 6 weeks in the intervention group relative to the control group (Multimedia Appendix 4). Lower urges for sex were found in the intervention group relative to the control group over the duration of the study. Finally, there was a statistically significant reduction in reports of feeling stressed the day before between the intervention and control conditions (P=.03). CONCLUSIONS: Findings indicate promising intervention effects on drug use, stress, and urges for sex in a hard-to-reach, high-risk population. The MY-RID intervention should be further tested in a larger randomized controlled trial to further investigate its efficacy and impact on sexual risk behaviors. TRIAL REGISTRATION: ClinicalTrials.gov NCT03911024; https://clinicaltrials.gov/ct2/show/NCT03911024.
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Infecções por HIV , Pessoas Mal Alojadas , Adolescente , Adulto , Teorema de Bayes , Infecções por HIV/epidemiologia , Infecções por HIV/prevenção & controle , Humanos , Masculino , Projetos Piloto , Comportamento de Redução do Risco , Adulto JovemRESUMO
BACKGROUND: Youth experiencing homelessness are more likely than housed youth to experience premature death, suicide, drug overdose, pregnancy, substance use, and mental illness. Yet while youth experiencing homelessness are 6 to 12 times more likely to become infected with HIV than housed youth, with HIV prevalence as high as 16%, many do not access the prevention services they need. Despite adversities, youth experiencing homelessness are interested in health promotion programs, can be recruited and retained in interventions and research studies, and demonstrate improved outcomes when programs are tailored and relevant to them. OBJECTIVE: The study aims to compare the efficacy of a nurse case management HIV prevention and care intervention, titled Come As You Are, with that of usual care among youth experiencing homelessness aged 16 to 25 years. METHODS: The study is designed as a 2-armed randomized wait-list controlled trial. Participants (n=450) will be recruited and followed up for 9 months after the intervention for a total study period of 12 months. Come As You Are combines nurse case management with a smartphone-based daily ecological momentary assessment to develop participant-driven HIV prevention behavioral goals that can be monitored in real-time. Youth in the city of Houston, Texas will be recruited from drop-in centers, shelters, street outreach programs, youth-serving organizations, and clinics. RESULTS: Institutional review board approval (Committee for the Protection of Human Subjects, University of Texas Health Science Center at Houston) was obtained in November 2018. The first participant was enrolled in November 2019. Data collection is ongoing. To date, 123 participants have consented to participate in the study, 89 have been enrolled, and 15 have completed their final follow-up. CONCLUSIONS: There is a paucity of HIV prevention research regarding youth experiencing homelessness. Novel and scalable interventions that address the full continuum of behavioral and biomedical HIV prevention are needed. This study will determine whether a personalized and mobile HIV prevention approach can reduce HIV risk among a hard-to-reach, transient population of youth at high risk. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): DERR1-10.2196/26716.
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PURPOSE: In recent years, breast cancer detection and treatment have advanced. As a result, increased attention to breast cancer survivorship should have improved their health-related quality of life (HRQoL). Our aim was to examine the trends in the HRQoL of female breast cancer survivors between 2008 and 2016, to determine whether or not the increased focus on survivorship has translated into improved HRQoL. Furthermore, stratified analyses were conducted by race/ethnicity and age group and these were compared to a similar group of women without a breast cancer history. METHODS: Repeated cross-sectional analyses using the Medical Expenditure Panel Survey between 2008 and 2016 were conducted. Pooled ordinary least squares (OLS) regression was used to examine the trends in physical component scores (PCS-12) and mental component scores (MCS-12) among breast cancer survivors and a similar population of women without a breast cancer history. Analyses stratified by race/ethnicity and age group were also conducted. RESULTS: Among breast cancer survivors, after adjusting for confounders, there was no change in PCS-12 scores over time, but the MCS-12 scores increased by 0.27 points (95% CI 0.09-0.45). Those without a history of breast cancer had mean PCS-12 scores that were 0.13 points greater each year (95% CI 0.02-0.24) while their mean MCS-12 scores were 0.10 (95% CI 0.00-0.21) points greater each year. After stratifying by race/ethnicity, Hispanic breast cancer survivors had a small increase in PCS-12 (ß: 0.65; 95% CI 0.01-1.29), and MCS-12 scores (ß: 0.70; 95% CI 0.06-1.33) over time. Similar small effects were found when stratified by age group, both among breast cancer survivors and those without a history of breast cancer. The younger age group (< 50 years) reported poorer MCS-12 than the older population (age 50 years and above). CONCLUSION: Our study generated findings showing the trends in the HRQoL of breast cancer survivors and compared these to a similar population of women without a history of breast cancer. This paper highlights the importance of focusing on the mental health of young breast cancer survivors to improve their prospects at a good quality of life post-breast cancer diagnosis and treatment.
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Neoplasias da Mama , Sobreviventes de Câncer , Neoplasias da Mama/terapia , Estudos Transversais , Feminino , Gastos em Saúde , Humanos , Pessoa de Meia-Idade , Qualidade de Vida/psicologia , Inquéritos e QuestionáriosRESUMO
Youths experiencing homelessness (YEH) often cycle between various sheltering locations including spending nights on the streets, in shelters and with others. Few studies have explored the patterns of daily sheltering over time. A total of 66 participants completed 724 ecological momentary assessments that assessed daily sleeping arrangements. Analyses applied a hypothesis-generating machine learning algorithm (component-wise gradient boosting) to build interpretable models that would select only the best predictors of daily sheltering from a large set of 92 variables while accounting for the correlated nature of the data. Sheltering was examined as a three-category outcome comparing nights spent literally homeless, unstably housed or at a shelter. The final model retained 15 predictors. These predictors included (among others) specific stressors (e.g., not having a place to stay, parenting and hunger), discrimination (by a friend or nonspecified other; due to race or homelessness), being arrested and synthetic cannabinoids use (a.k.a., "kush"). The final model demonstrated success in classifying the categorical outcome. These results have implications for developing just-in-time adaptive interventions for improving the lives of YEH.
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Habitação , Pessoas Mal Alojadas , Envio de Mensagens de Texto , Adolescente , Algoritmos , Avaliação Momentânea Ecológica , Humanos , Aprendizado de MáquinaRESUMO
BACKGROUND: Limited evidence suggests the efficacy of animal-assisted activities (AAA) in improving biobehavioral stress responses in older patients in intensive care units (ICUs). OBJECTIVES: To assess the feasibility of an AAA (dog) intervention for improving biobehavioral stress response, measured by self-reported stress and anxiety and salivary cortisol, C-reactive protein, and interleukin-1ß in older ICU patients, we examined enrollment, attrition, completion, data collection, and biobehavioral stress responses. METHODS: ICU patients ≥60 years old were randomly assigned to a 10-min AAA intervention or control/usual ICU care. Attitudes toward pets were assessed before the intervention. Self-reported stress and anxiety and salivary stress biomarkers were collected before and after the intervention and the usual care condition. RESULTS: The majority of patients were ineligible due to lack of decisional capacity, younger age, inability to provide saliva specimens, or critical illness. Though 15 participants were randomly allocated (AAA = 9; control = 6), only 10 completed the study. All participants completed the questionnaires; however, saliva specimens were significantly limited by volume. AAA was associated with decreases in stress and anxiety. Biomarker results were variable and revealed no specific trends associated with stress responses. Conclusions: Barriers to recruitment included an insufficient number of patients eligible for AAA based on hospital policy, difficulty finding patients who met study eligibility criteria, and illness-related factors. Recommendations for future studies include larger samples, a stronger control intervention such as a visitor without a dog, greater control over the AAA intervention, and use of blood from indwelling catheters for biomarkers.
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Terapia Assistida com Animais/métodos , Estado Terminal/psicologia , Estado Terminal/terapia , Idoso Fragilizado/psicologia , Unidades de Terapia Intensiva/estatística & dados numéricos , Estresse Psicológico/terapia , Idoso , Idoso de 80 Anos ou mais , Animais , Cães , Estudos de Viabilidade , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Projetos Piloto , Distribuição Aleatória , Inquéritos e QuestionáriosRESUMO
OBJECTIVE: Concussions in adolescents are a growing public health concern as the popularity of high school sports increases. The aim of this study was to identify clinical (e.g., prior concussion, migraine history, learning disabilities/attention deficit hyperactivity disorders [ADHD]) and demographic factors (e.g., sex, race, health insurance, mechanism of injury/sport, education) that predict concussion recovery times. DESIGN: In a retrospective cohort study of adolescents 13-19 years old evaluated for an acute concussion (≤ 10 days from injury), recovery times were calculated from the date of concussive injury to the date of clearance to return to play or normal activities. RESULTS: The sample (N = 227) was primarily male (75%), and the median age was 15 years. Predictors of protracted recovery were ADHD (hazard ratio [HR] =.449, 95% confidence interval [CI] =.272-.741, p = .002) and prior concussion (HR =.574, 95% CI =.397-.828, p = .003) in all sex and race groups, while shorter recovery times were predicted by Hispanic and African American race (HR = 2.12, 95% CI = 1.30-3.46, p = .003), with White females as the reference group. CONCLUSIONS: Further research is needed to examine the role of sex, race, ADHD, and concussion history on concussion outcomes.
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Traumatismos em Atletas , Transtorno do Deficit de Atenção com Hiperatividade , Concussão Encefálica , Deficiências da Aprendizagem , Adolescente , Traumatismos em Atletas/complicações , Traumatismos em Atletas/epidemiologia , Transtorno do Deficit de Atenção com Hiperatividade/epidemiologia , Transtorno do Deficit de Atenção com Hiperatividade/etiologia , Concussão Encefálica/epidemiologia , Feminino , Humanos , Recém-Nascido , Masculino , Estudos RetrospectivosRESUMO
Concussions in adolescents are a growing public health concern. The aim of this study was to identify clinical (e.g., concussion history, migraine history, learning disabilities/ADHD) and demographic factors (e.g., age, sex, race, health insurance status, mechanism of injury, education) that predict concussion recovery times. In a retrospective cohort study of 118 adolescents 13-19 years old who were evaluated for an acute concussion (≤10 days from injury), recovery times were calculated from the date of concussive injury to the date of clearance to return to play and/or normal activities. The median time to recovery was 17 days. Predictors of longer recovery included ADHD (HR = .221, 95% CI = .095 - .514, p < .001) and prior concussion (HR = .564, 95% CI = .332 - .959, p = .03). Student athletic insurance and public insurance were predictors of shorter recovery times (HR = 3.98, 95% CI = 1.25 - 12.65, p = .02 and HR = 3.33, 95% CI = 1.09 - 10.15, p = .03, respectively). In adolescents with prior concussion or ADHD, clearance to return to play/ normal activities may be delayed. Further research is needed to validate the impact of SES/health insurance on concussion recovery time.
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Traumatismos em Atletas/reabilitação , Concussão Encefálica/reabilitação , Volta ao Esporte/estatística & dados numéricos , Adolescente , Adulto , Feminino , Humanos , Seguro Saúde , Masculino , Estudos Retrospectivos , Fatores Socioeconômicos , Fatores de Tempo , Adulto JovemRESUMO
[This corrects the article DOI: 10.2196/publichealth.9020.].
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BACKGROUND: Homeless youth continue to be disproportionately affected by HIV compared with their housed peers, with prevalence rates as high as 13%. Yet, HIV prevention in this high-risk population has been only marginally effective. OBJECTIVE: The aim of this study was to use ecological momentary assessments to examine real-time factors to determine the predictors of sexual activity among homeless youth. METHODS: Youth experiencing homelessness aged between 18 and 24 years were recruited from a drop-in center in Houston, Texas, between August 2015 and May 2016. All the participants received a study-issued mobile phone that prompted brief ecological momentary assessments (EMAs) 5 times a day for 21 days. EMA items assessed near real-time sexual behaviors, cognitions, stress, affect, environmental factors, and environmental circumstances. RESULTS: Participants (N=66) were predominantly male (41/66, 64%) and black (43/66, 66%) with a median age of 20 years. The mean number of EMAs completed by each participant was 45 out of 105 possible observations. During the study, 70% (46/66) of participants were sexually active and reported condomless sex in 102 of the 137 cases of sexual intercourse (74.5%). In total, 82% (38/46) of the youth who reported having sex during the 3 weeks of data collection also reported engaging in high-risk sexual activities, including having condomless sex (24/46, 53%), having multiple sexual partners on the same day (12/46, 26%), trading sex (7/46, 16%), and sharing needles while injecting drugs (1/46, 3%). Of those, 71% (27/38) were engaged in multiple sexual risk behaviors. The predictive model was based on observations from 66 subjects who reported 137 cases of sexual intercourse over 811 days; sexual orientation, race, mental health, drug use, and sexual urge were included as predictors in the parsimonious generalized linear mixed model selected on the basis of the Akaike information criterion. The estimated odds ratios (ORs) were notable for same-day drug use (OR 2.17, 95% CI 4.48-17.31; P<.001) and sexual urge (OR 1.44, 95% CI 1.60-11.28; P=.004). The performance of the risk estimator was satisfactory, as indicated by the value of 0.834 for the area under the receiver operating characteristic curve. CONCLUSIONS: Real-time EMA data can be used to predict sexual intercourse among a sample of high-risk, predominately unsheltered homeless youth. Sexual urge and drug use accounts for increased odds of engaging in sexual activity on any given day. Interventions targeting sexual urge and drug use may help predict sexual activity among a population at high risk of HIV.
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BACKGROUND: Self-monitoring is a cornerstone of behavioral lifestyle interventions for obesity and type 2 diabetes mellitus. Mobile technology has the potential to improve adherence to self-monitoring and patient outcomes. However, no study has tested the use of a smartphone to facilitate self-monitoring in overweight or obese adults with type 2 diabetes mellitus living in the underserved community. OBJECTIVE: The aim of this study was to examine the feasibility of and compare preliminary efficacy of a behavioral lifestyle intervention using smartphone- or paper-based self-monitoring of multiple behaviors on weight loss and glycemic control in a sample of overweight or obese adults with type 2 diabetes mellitus living in underserved communities. METHODS: We conducted a randomized controlled trial to examine the feasibility and preliminary efficacy of a behavioral lifestyle intervention. Overweight or obese patients with type 2 diabetes mellitus were recruited from an underserved minority community health center in Houston, Texas. They were randomly assigned to one of the three groups: (1) behavior intervention with smartphone-based self-monitoring, (2) behavior intervention with paper diary-based self-monitoring, and (3) usual care group. Both the mobile and paper groups received a total of 11 face-to-face group sessions in a 6-month intervention. The mobile group received an Android-based smartphone with 2 apps loaded to help them record their diet, physical activity, weight, and blood glucose, along with a connected glucometer, whereas the paper group used paper diaries for these recordings. Primary outcomes of the study included percentage weight loss and glycated hemoglobin (HbA1c) changes over 6 months. RESULTS: A total of 26 patients were enrolled: 11 in the mobile group, 9 in the paper group, and 6 in the control group. We had 92% (24/26) retention rate at 6 months. The sample is predominantly African Americans with an average age of 56.4 years and body mass index of 38.1. Participants lost an average of 2.73% (mobile group) and 0.13% (paper group) weight at 6 months, whereas the control group had an average 0.49% weight gain. Their HbA1c changed from 8% to 7 % in mobile group, 10% to 9% in paper group, and maintained at 9% for the control group. We found a significant difference on HbA1c at 6 months among the 3 groups (P=.01). We did not find statistical group significance on percentage weight loss (P=.20) and HbA1c changes (P=.44) overtime; however, we found a large effect size of 0.40 for weight loss and a medium effect size of 0.28 for glycemic control. CONCLUSIONS: Delivering a simplified behavioral lifestyle intervention using mobile health-based self-monitoring in an underserved community is feasible and acceptable and shows higher preliminary efficacy, as compared with paper-based self-monitoring. A full-scale randomized controlled trial is needed to confirm the findings in this pilot study. TRIAL REGISTRATION: ClinicalTrials.gov NCT02858648; https://clinicaltrials.gov/ct2/show/NCT02858648 (Archived by WebCite at http://www.webcitation.org/6ySidjmT7).
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CONTEXT: Cranial electrotherapy stimulation (CES) is a safe modulation of brain activity for treating depression, anxiety, insomnia, and pain. However, there are no published studies in patients with advanced cancer (ACPs). OBJECTIVES: The aim of the study was to determine the feasibility and preliminary efficacy of a four-week CES intervention on depression, anxiety, sleep disturbance, and pain scores. Concurrent salivary biomarker studies were conducted. METHODS: In this one group open label pre- and post-intervention study with a four-week CES intervention, ACPs with one or more of four moderate intensity (≥3/10) Edmonton Symptom Assessment Scale (ESAS) symptoms (depression, anxiety, sleep disturbance, and pain) were eligible. Adherence (0%-100%), satisfaction rates (0-10), and safety were assessed. ESAS, Hospital Anxiety and Depression Scale (HADS), Pittsburgh Sleep Quality Index, Brief Pain Inventory, and salivary levels (cortisol, alpha amylase, C-reactive protein, and interleukin-1ß, and interleukin-6) were assessed from baseline to Week 4. RESULTS: Thirty-three of 36 patients (92%) completed the CES. Median (interquartile range) adherence CES use and satisfaction scores were 93% (89-100) and 10% (9-10), respectively, and the adherence criteria was met in the study. CES use was safe (no Grade 3 or higher adverse events). HADS anxiety (P < 0.001), HADS depression (P = 0.024), ESAS anxiety (P = 0.001), ESAS depression (P = 0.025), Brief Pain Inventory pain (P = 0.013), Pittsburgh Sleep Quality Index daytime dysfunction (P = 0.002), and medication use (P = 0.006) scores improved after four-week CES treatment. CONCLUSION: In this preliminary study, we found that the use of CES was safe and feasible in ACP. The use of CES was associated with significant improvement of depression, anxiety, pain, and sleep scores. These findings support further studies of CES in ACP for symptom control.
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Ansiedade/terapia , Dor do Câncer/terapia , Depressão/terapia , Terapia por Estimulação Elétrica , Neoplasias/terapia , Distúrbios do Início e da Manutenção do Sono/terapia , Idoso , Ansiedade/etiologia , Ansiedade/metabolismo , Biomarcadores/metabolismo , Dor do Câncer/metabolismo , Depressão/etiologia , Depressão/metabolismo , Estudos de Viabilidade , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Neoplasias/complicações , Neoplasias/metabolismo , Neoplasias/psicologia , Manejo da Dor , Dados Preliminares , Saliva/metabolismo , Distúrbios do Início e da Manutenção do Sono/etiologia , Distúrbios do Início e da Manutenção do Sono/metabolismo , Resultado do TratamentoRESUMO
BACKGROUND: Alcohol and drug use is associated with significant morbidity and mortality and is highly prevalent among homeless youth. Ecological Momentary Assessments (EMA) have been used to examine the effect of urges on drug use, though not among homeless youth. OBJECTIVES: We assessed the patterns of drug use and the correlation between real-time contextual factors and drug use using EMA collected daily. We identified predictors of drug use among a sample of homeless youth 18-25 years old in Houston, Texas. METHODS: Homeless youth (n = 66, 62% male) were recruited from a drop-in center between September 2015 and May 2016. We used generalized linear mixed models and cross-validation methods to determine the best predictive model of drug use. RESULTS: The overall drug use was high: 61% and 32% of participants reported using drugs or alcohol at least one day, respectively. Marijuana and synthetic marijuana use (i.e., Kush, K2, incense packs) were reported most frequently; 86% and 13% of the total drug use EMAs, respectfully. Drug use urge was reported on 26% of days and was the highest on drug use days. Drug use was predicted by discrimination, pornography use, alcohol use, and urges for drugs, alcohol, and to steal. CONCLUSIONS: EMA can be used to predict drug use among homeless youth. Drug use treatment among homeless youth should address the role of experiencing discrimination, pornography and alcohol use, and urge management strategies on drug use. Research is needed to determine if EMA informed just-in-time interventions targeting these predictors can reduce use.
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Consumo de Bebidas Alcoólicas/epidemiologia , Avaliação Momentânea Ecológica , Jovens em Situação de Rua/estatística & dados numéricos , Transtornos Relacionados ao Uso de Substâncias/epidemiologia , Adolescente , Adulto , Literatura Erótica/psicologia , Feminino , Humanos , Modelos Lineares , Masculino , Uso da Maconha/epidemiologia , Modelos Teóricos , Discriminação Social/psicologia , Texas/epidemiologia , Adulto JovemRESUMO
Activity levels in nursing home residents were measured with accelerometers over one week as part of a multicenter randomized controlled trial, and complexity of the resulting activity patterns were characterized. Among 813 study participants on whom activity data had been collected, 16 participants developed pressure ulcers by the end of the study. The fractal dimension D0 of the activity series was lower (p=0.039) in residents who developed pressure ulcers than in controls matched on the basis of race, randomization group, score on the Braden scale, and diagnoses of cardiovascular disease and dementia. Hurst exponents indicated that the scaling of the power spectrum was close to 1/f in pressure ulcer cases. At timescales exceeding 30 minutes, approximate entropy tended to be higher in the controls than in the pressure ulcer cases. The fractal structure of the activity time series and its information content offer the ability to predict higher risk of development of pressure ulcers in nursing home residents.
Assuntos
Úlcera por Pressão , Humanos , Casas de Saúde , Grupos Raciais , Fatores de RiscoRESUMO
PURPOSE: This study assessed the effectiveness of animal-assisted activities (AAA) on biobehavioral stress responses (anxiety, positive and negative affect, and salivary cortisol and C-reactive protein [CRP] levels) in hospitalized children. DESIGN AND METHODS: This was a randomized, controlled study. METHOD: Forty-eight participants were randomly assigned to receive a 10-minute AAA (n=24) or a control condition (n=24). Anxiety, positive and negative affect, and levels of salivary biomarkers were assessed before and after the intervention. RESULTS: Although increases in positive affect and decreases in negative affect were larger in the AAA condition, pre- and post-intervention differences between the AAA and control conditions were not significant. In addition, pre- and post-intervention differences between the conditions in salivary cortisol and CRP were not statistically significant. Baseline levels of anxiety, cortisol, and CRP had a significant and large correlation to the corresponding post-intervention measures. Scores on the Pet Attitude Scale were high but were not associated with changes in anxiety, positive affect, negative affect, or stress biomarkers. CONCLUSIONS: Although changes were in the expected direction, the magnitude of the effect was small. Future randomized controlled trials with larger recruitment are needed to determine the effectiveness of AAAs in reducing biobehavioral stress responses in hospitalized children. PRACTICE IMPLICATIONS: Nurses are positioned to recommend AAA as a beneficial and safe experience for hospitalized children.