Publications

Abstract

Background: Most heart failure (HF) patients have other comorbid conditions. HF self-care requires medication and diet adherence, daily weight monitoring, and a thoughtful response to symptoms when they occur. Self-care is complicated when other chronic conditions have additional self-care requirements. The purpose of this study is to explore how comorbidity influences HF self-care. Methods: Using qualitative descriptive meta-analysis techniques, transcripts from 3 mixed methods studies (n = 99) were reexamined to yield themes about perceptions about HF and self-care and to explore the influence on HF self-care. The Charlson Comorbidity Index identified comorbid conditions. Results: The sample was 74% Caucasian, 66% male (mean age of 59.6 years ± 15 years). Fifty-three percent of the sample was New York Heart Association Class III. All had at least 1 other chronic condition. Narrative accounts revealed that adherence to diet, symptom monitoring, and differentiating symptoms from multiple conditions were the most challenging self-care skills. Emerging themes included 1) attitudes drive self-care prioritization and 2) fragmented self-care instruction leads to poor self-care integration and self-care skill deficits. Conclusions: Individuals with multiple chronic conditions are vulnerable to poor self-care. Research testing coaching interventions that integrate self-care requirements and focus on developing skill in self-care across multiple chronic conditions is needed.

Abstract

Using focused questions is one of the many ways to help students think about what they are doing. These questions can be asked during preconference, during the course of the clinical day, or on postconference. Benner et al5 warn that cynicism and excessive doubt are by-products of too much critical thinking. They suggest that faculty shift their approach from exclusive emphasis on critical thinking to an emphasis on clinical reasoning and multiple ways of thinking that include critical thinking.6 Clinical reasoning is a form of practical reasoning through transitions in patients' conditions or situations.5 Asking simple questions that require reflective thinking is one way to promote clinical reasoning.

Abstract

Chronic viral hepatitis B and C infection is three to five times more frequent than HIV in the USA, and chronically infected people are at risk for long-term sequelae including cirrhosis, liver decomposition, and hepatocellular carcinoma (Institute of Medicine, 2010). Socio-cultural factors are central to the way an individual constructs hepatitis B virus (HBV) infection, perceives it as serious health problem, and moves on to appropriate health behavior (Lee et al., J Canc Educ 25:337-342, 2010; Kim, J Health Care Poor Underserved 5:170-182, 2004; Lee et al., Asian Nurs Res 1:1-11, 2007; Wu et al, Asian Pac J Cancer Prev 8(1):127-234, 2007; Yang et al., J Korean Academy Nurs 40:662-675, 2010). The purpose of this study was to seek "real world" data about factors that influence the recognition and management of HBV infection in Korean Americans' socio-cultural contexts. The descriptive qualitative study used an interview informed by ethnography to collect data and was guided by the Network- Episode Model. (Pescosolido, Adv Med Sociol 2:161-184, 1991; Pescosolido, AJS 97:1096-1138, 1992; Pescosolido, Res Sociol Health Care 13A:171-197, 1996). The sample comprised 12 HBV patients and nine key informants. Six factors that influenced the management of HBV infection emerged from the interviews: recognition of disease within a social context, unrecognized disease in a hidden health system, the socio-cultural meaning of disease, lay construction of the cause of disease, misunderstandings and cultural learning styles, and personal and environmental barriers to health care. Each theme was associated with Korean American (KA) social contexts, participants' experiences, and the beliefs they held about the disease. The findings explored that the family network is "genetic code" for social networking among KAs and the network of patients was not geographically bound. Health management behaviors are mediated by an array of types and levels of social and personal networks, and this raises questions about current health education, management of HBV, and prevention of liver cancer.

Abstract

Purpose: This study examined employment of specific recruitment and retention strategies in a study evaluating outcomes of a moderate activity exercise program for older African American women with functional impairments attending a Program for All-Inclusive Care of Elders (PACE). Design and Methods: Recruitment and retention strategies focused on (1) partnership between researchers and participants, (2) partnership between researchers and clinicians, (3) overcoming administrative issues, and (4) reducing burden on clinicians and participants. The exercise protocol consisted of strength and endurance activity 2 to 3 times per week for 16 weeks. Results: Fifty-two African American women (61.2% of target) were enrolled and 37 (71.2%) completed the 16-week exercise program. Fifteen did not complete due to non-descript reasons and/or preference for other program activities (n = 11), medical problems (n = 2), or need for physical therapy (n = 2). Implications: Success in recruitment and retention included use of a PACE program, hiring an advanced practice nurse to improve retention, and integration with site activities and sustaining the exercise program at the site. Challenges for recruitment and retention remain to engage older, frail adults in exercise as a life habit, and availability of time and place to do so.

Abstract

This study was a cross-sectional descriptive survey of acute care hospitals in California to describe staff hand hygiene compliance and related predictors and explore the relationship between hand hygiene adherence and health care-associated infections. Although there was a relatively small sample size, institutions with morning huddles reported a significantly higher proportion of 95% or more hand hygiene compliance. Huddles are an organizational tool to improve teamwork and communication and may offer promise to influence hand hygiene adherence.

Abstract

Little is known about registered nurses' geographic mobility after they earn their first professional degree and become licensed to practice. Through a cross-sectional mailed survey of newly licensed registered nurses in fifteen states, we found that 52.5 percent work within forty miles of where they attended high school. Our complementary analysis of Census Bureau data shows that next to teaching, nursing is one of the least mobile professions for women, for reasons that remain unclear. To ensure that underserved areas have an adequate workforce of registered nurses, policy makers should expand the number of educational programs in these areas; fund programs that provide incentives to young people from these areas to attend nursing programs; consider supporting extension programs from accredited nursing schools; and review admission policies for nursing programs and the financial aid they offer. If states find it difficult to retain out-of-state graduates, giving preference to in-state applicants may make sense. Finally, programs and policies that offer financial incentives to attract registered nurses to underserved areas, such as the National Health Service Corps and the Area Health Education Centers, are critically important. When sufficiently funded, such programs could serve to offset the low mobility of new registered nurses that we observed.

Abstract

Hidden/special populations such as new immigrants are hard-to-reach due to issues such as stigma, discrimination, fear of immigration authorities, and cultural norms. Such factors can affect the recruitment of participants for behavioral research, especially research which addresses stigmatizing conditions such as HIV/AIDS. This research involved a qualitative approach and methods. The study identified contextual factors as well as attitudes, experiences and beliefs affecting HIV risk among recent Hispanic immigrants in New York. During the course of this research, challenges to participant recruitment were identified which were related to the environments, characteristics of the populations, and the sensitive nature of the topic to be studied. Strategies including exploratory fieldwork and sensitivity to participants' fear of ''the system'' were effective in recruiting individuals from this population. The authors discuss the strategies which facilitated recruitment of research subjects from these new Hispanic immigrant communities and the importance of behavioral research among these vulnerable communities.

Abstract

Objective: The findings from several studies suggest that palliative care patients with advanced cancer experience multiple symptoms, and that these symptoms may be related to demographic and clinical factors as well as to patient outcomes. However, no systematic review has summarized the findings from studies that assessed multiple symptoms, predictors, and outcomes in these patients. The purposes of this review, focused on palliative care patients with advanced cancer, are to: 1) describe the relationships among multiple symptoms; 2) describe the predictors of multiple symptoms; and 3) describe the relationships between multiple symptoms and patient outcomes. Method: Comprehensive literature searches were completed using the following databases: PubMed, Cumulative Index to Nursing and Allied Health Literature, and PsychInfo. The key words: cancer or advanced cancer or neoplasm, AND palliative care or terminal care or hospice or end-of-life, AND symptoms or multiple symptoms or symptom clusters were combined.Results: Twenty-two studies met the inclusion criteria and examined at least one of our purposes. The majority of these studies were descriptive and used one of four common symptom assessment scales. Fifty-six different signs and symptoms were evaluated across various dimensions (i.e., prevalence, severity, distress, frequency, control). Pain, dyspnea, and nausea were the only symptoms measured in all 22 studies. Relationships among concurrent symptoms were examined in nine studies. Relationships among symptoms and predictors (i.e., demographics, cancer type, healthcare delivery environment) were examined in seven studies. Relationships among symptoms and outcomes (i.e., functional status, psychological status, quality-of-life, survival time) were examined in 14 studies. Significant methodological variation was found among these studies.Significance of results: It is difficult to draw conclusions about the relationships among multiple symptoms, predictors, and outcomes due to the heterogeneity of these studies. Future research is needed to determine which symptoms and symptom dimensions to assess in order to better understand how multiple symptoms relate to each other as well to as predictors and outcomes in palliative care patients with advanced cancer.

Abstract

Background: Men who have sex with men (MSM) account for the greatest burden of the HIV epidemic in Peru. Given that MSM are frequent users of the Internet, understanding the risk behaviors and the reasons for not getting tested among MSM who surf the Internet may improve the tailoring of future online behavioral interventions. Methods: From October 2007 to April 2008, we conducted an online survey among users of seven Peruvian gay websites. Results: We received 1,481 surveys, 1,301 of which were included in the analysis. The median age of the participants was 22.5 years (range 12 - 71), 67% were homosexual, and the remainder was bisexual. Of survey respondents, 49.4% had never been tested for HIV and only 11.3% were contacted in-person during the last year by peer health educators from the Peruvian Ministry of Health and NGOs. Additionally, 50.8% had unprotected anal or vaginal sex at last intercourse, and a significant percentage reported a condom broken (22.1%), slipped (16.4%) or sexual intercourse initiated without wearing a condom (39.1%). The most common reasons for not getting tested for HIV among high-risk MSM were "I fear the consequences of a positive test result" (n = 55, 34.4%), and "I don't know where I can get tested" (n = 50, 31.3%). Conclusions: A small percentage of Peruvian MSM who answered our online survey, were reached by traditional peer-based education programs. Given that among high-risk MSM, fear of a positive test result and lack of awareness of places where to get tested are the most important reasons for not taking an HIV test, Internet interventions aimed at motivating HIV testing should work to reduce fear of testing and increase awareness of places that offer free HIV testing services to MSM.

Abstract

Though pursuit of host genetic factors that influence the pathogenesis of HIV began over two decades ago, progress has been slow. Initial genome-level searches for variations associated with HIV-related traits have yielded interesting candidates, but less in the way of novel pathways to be exploited for therapeutic targets. More recent genome-wide association studies (GWAS) that include different phenotypes, novel designs, and that have examined different population characteristics suggest novel targets and affirm the utility of additional searches. Recent findings from these GWAS are reviewed, new directions for research are identified, and the promise of systems biology to yield novel insights is discussed.

Abstract

Objective: To compare euploid pregnancies with congenital heart defects (CHDs) to similar pregnancies without CHDs on typically collected second trimester biomarker measurements. Method: Second trimester serum levels of alpha-fetoprotein (AFP), human chorionic gonadotrophin (hCG), and unconjugated estriol were compared for 306 CHD cases and 1224 no-CHD controls drawn from a sample of singleton pregnancies without chromosomal or neural tube defects (NTDs). Logistic regression models were built comparing biomarkers for cases and controls. Results: Regardless of the severity of defect, CHD cases were more likely to have unusually high AFP and/or hCG levels and/or unusually low hCG and/or uE3 levels [odds ratio (OR) 1.8-2.4, 95% confidence intervals (CIs) 1.2-4.0]. Cases with critical CHDs were more than twice as likely to have an AFP multiple of the median (MoM) ≥ the 95th percentile and/or an hCG and/uE3 MoM ≤ the 5th percentile (OR 2.1-3.9, 95% CIs 1.1-7.8). Conclusion: Abnormal levels of specific second trimester maternal serum biomarkers indicated an increased risk for CHDs among this sample of low risk pregnancies. Our data suggest that future efforts aimed at improving CHD detection in low risk pregnancies may benefit from considering serum biomarkers.

Abstract

'Heart failure self care' refers to the practices in which patients engage to maintain their own health, and to the decisions that they make about managing signs or symptoms. In this article, we base our discussion of self care in chronic heart failure on the classification of patients as being 'expert', inconsistent', or 'novice' in heart failure self-care behaviors. The available literature on factors predicting heart failure self care and its outcomes are reviewed within this context. Factors known to influence heart failure self care include experience with the illness, physical functioning, depression and anxiety, social support, daytime sleepiness, and attitudes such as confidence. Further research is needed to understand the contributions of comorbidities, patient sex, and health disparities on heart failure self care. The evidence to support a link between heart failure self care and health outcomes is limited, but early evidence suggests that adequate self care is associated with an improvement in health status, a decrease in the number and duration of hospitalizations, and a decline in levels of biomarkers of stress and inflammation, and in intrathoracic impedance. Implications of heart failure self care for clinical practice, policy, and public health are also described.

Abstract

Context: Self-management involves behaviors that individuals perform to handle health conditions. Self-management may be particularly challenging during transitions - shifts from one life phase or status to another, for example, from cure- to noncure-oriented care - because they can be disruptive and stressful. Little is known about individuals' experiences with self-management, especially during transitions. Objectives: Our purpose was to describe experiences of self-management in the context of transitions among women with advanced breast cancer. Methods: We interviewed a purposive sample of 15 women with metastatic breast cancer about their self-management preferences, practices, and experiences, including how they managed transitions. Interviews were recorded and transcribed. The qualitative method of interpretive description was used to code and analyze the data. Results: Participants' mean age was 52 years (range 37-91 years); most were White (80%), married (80%), and college educated (60%). Self-management practices related to womens' health and to communication with loved ones and providers. Participants expressed a range of preferences for participation in self-management. Self-management included developing skills, becoming empowered, and creating supportive networks. Barriers to self-management included symptom distress, difficulty obtaining information, and lack of knowledge about the cancer trajectory. Women identified transitions as shifts in physical, emotional, and social well-being, as when their cancer progressed and there was a need to change therapy. Transitions often prompted changes in how actively women self-managed and were experienced as positive, negative, and neutral. Conclusion: Self-management preferences can vary. Providers should explore and revisit patients' preferences and ability to self-manage over time, particularly during transitions.

Abstract

With recent improvements in the early detection, diagnosis, and treatment of cancer, people with cancer are living longer, and their cancer may be managed as a chronic illness. Cancer as a chronic illness places new demands on patients and families to manage their own care, and it challenges old paradigms that oncology's work is done after treatment. As a chronic illness, however, cancer care occurs on a continuum that stretches from prevention to the end of life, with early detection, diagnosis, treatment, and survivorship in between. In this article, self-management interventions that enable patients and families to participate in managing their care along this continuum are reviewed. Randomized controlled trials of self-management interventions with cancer patients and families in the treatment, survivorship, and end-of-life phases of the cancer care continuum are reviewed, and the Chronic Care Model is presented as a model of care that oncology practices can use to enable and empower patients and families to engage in self-management. It is concluded that the need for a common language with which to speak about self-management and a common set of self-management actions for cancer care notwithstanding, oncology practices can now build strong relationships with their patients and formulate mutually agreed upon care plans that enable and empower patients to care for themselves in the way they prefer.

Abstract

Symptom burden has been identified as a predictor of medication adherence, but little is known about which symptoms are most strongly implicated. This study examines self-reported medical adherence in relation to demographic, clinical, and symptom characteristics among 302 adults living with HIV. Only 12% reported missing medication during the 3-day assessment, but 75% gave at least one reason for missing it in the previous month. Poor adherence was associated with higher viral load and greater symptom burden. Trouble sleeping and difficulty concentrating were strongly associated with poor adherence. Given that " forgetting" was the most common reason for missing medication and nearly one third reported sleeping through dose time, future research should examine the influence of sleep disturbance on adherence. Effective management of common symptoms, such as sleep disturbance, fatigue, and gastrointestinal side-effects of medications may result in better adherence, as well as improved clinical outcomes and quality of life.

Abstract

Puerto Rico has one of the highest incidence rates of HIV in the U.S. Concurrent with increases in sexually transmitted infections (STI), an increasing share of the new infections in PR are associated with sexual transmission. Much of the available research on sexual risk in PR derives from STI /HIV surveillance data. There is limited social and epidemiological research on sexual risk in PR, particularly in hidden and often hardto-reach populations at high risk. Despite the absence of substantial resources that most epidemiological studies require, a research collaboration was initiated in 2007 between researchers in the School of Public Health at the University of Puerto Rico and the Centro Latinoamericano de Enfermedades de Transmisión Sexual (CLET S), one of the largest publicly funded centers for STI /HIV screening and treatment in the San Juan metropolitan area. Structured as a case study in the development of communitybased research collaborations, this paper describes the early history and development of the project, including formative research, recruitment and training of students, and evolution in the study design that contributed to the current configuration of the ongoing "Core" study. Preliminary data are presented, highlighting data from a number of subpopulations that may contribute to our understanding of the role of behavioral risk in the STI /HIV epidemics in PR. More generally, the paper may guide the development of similar collaboration elsewhere in the Caribbean where HIV risk is increasing but where resources for research in high risk settings and groups are scarce.

Abstract

Acetylation is increasingly recognized as an important metabolic regulatory posttranslational protein modification, yet the metabolic consequence of mitochondrial protein hyperacetylation is unknown. We find that high-fat diet (HFD) feeding induces hepatic mitochondrial protein hyperacetylation in mice and downregulation of the major mitochondrial protein deacetylase SIRT3. Mice lacking SIRT3 (SIRT3KO) placed on a HFD show accelerated obesity, insulin resistance, hyperlipidemia, and steatohepatitis compared to wild-type (WT) mice. The lipogenic enzyme stearoyl-CoA desaturase 1 is highly induced in SIRT3KO mice, and its deletion rescues both WT and SIRT3KO mice from HFD-induced hepatic steatosis and insulin resistance. We further identify a single nucleotide polymorphism in the human SIRT3 gene that is suggestive of a genetic association with the metabolic syndrome. This polymorphism encodes a point mutation in the SIRT3 protein, which reduces its overall enzymatic efficiency. Our findings show that loss of SIRT3 and dysregulation of mitochondrial protein acetylation contribute to the metabolic syndrome.

Abstract

Background: Little is known about the relationships between sleep parameters and fatigue in patients at the initiation of radiation therapy (RT). Objectives: The objectives of this study were to describe values for nocturnal sleep/rest, daytime wake/activity, and circadian activity rhythm parameters measured using actigraphy and to evaluate the relationships between these objective parameters and subjective ratings of sleep disturbance and fatigue severity, in a sample of patients at the initiation of RT. Methods: Patients (n = 185) with breast, prostate, lung, or brain cancer completed self-report measures for sleep disturbance (ie, Pittsburgh Sleep Quality Index, General Sleep Disturbance Scale) and fatigue (Lee Fatigue Scale) and wore wrist actigraphs for a total of 48 hours prior to beginning RT. Actigraphy data were analyzed using the Cole-Kripke algorithm. Spearman rank correlations were calculated between variables. Results: Approximately 30% to 50% of patients experienced sleep disturbance, depending on whether clinically significant cutoffs for the subjective or objective measures were used to calculate occurrence rates. In addition, these patients reported moderate levels of fatigue. Only a limited number of significant correlations were found between the subjective and objective measures of sleep disturbance. Significant positive correlations were found between the subjective, but not the objective measures of sleep disturbance and fatigue. Conclusions: A significant percentage of oncology patients experience significant disturbances in sleep-wake circadian activity rhythms at the initiation of RT. The disturbances occur in both sleep initiation and sleep maintenance. Implications for Practice: Patients need to be assessed at the initiation of RT for sleep disturbance, so appropriate treatment is initiated.

Abstract

Objective: To learn more about human papilloma virus (HPV) knowledge and vaccination among teens and young women age 13 to 26 years from an economically disadvantaged, urban community. Our aim was to identify common beliefs about HPV vaccine initiation and describe the relationship between attitudes, norms, perceived control, and intention to receive HPV vaccine, drawing from the theory of planned behavior (TPB). Design: Mixed method, descriptive design. Guided by the TPB, HPV vaccine beliefs were assessed through focus groups. Intention to receive the vaccine, demographic and clinical factors, and theoretical predictor variables (attitudes, norms, and control) were assessed through questionnaires. Setting: After recruitment, focus groups were held at a convenient date and time for our participants in a small university conference room. Participants: Participants were economically disadvantaged young women, age 13 to 26 (N = 34). Methods: Specific behavioral, normative, and control beliefs were elicited in focus groups and analyzed using content analysis. Simple and multivariate general linear modeling with adjustment for prognostic demographic and clinical factors was completed to assess the influence of the theoretical predictor variables on the outcome of HPV vaccine initiation. Results: Influential beliefs toward vaccination were identified. Analysis indicated attitudes, norms, and perceived control toward HPV vaccine initiation were highly significant predictors of intent, as was tobacco use; all p's < .001. Conclusion: Barriers to HPV vaccine initiation were identified, and strong preliminary evidence supports use of the TPB to guide programs to promote urban, economically disadvantaged young women's intent to begin the HPV vaccine.