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Background: Clinicians and researchers often assume that symptom burden is associated with self-care management (SCM) in patients with heart failure (HF). However, that association is often not borne out in simple regression analyses and may be because another variable mediates the association. Fatalism is an appropriate candidate for mediation and is the belief that circumstances are predetermined without opportunity for control by individuals. Objective: Our objective was to determine whether fatalism mediated the relationship of symptom burden with SCM among adults with HF. Methods: We conducted a secondary analysis (N = 95) from a clinical trial. We used Self-care of HF Index to measure SCM, the Memorial Symptom Assessment Scale-HF for symptom burden, and the Cardiovascular Disease Fatalism Instrument to measure fatalism. We used the PROCESS macro to evaluate mediation. Results: Symptom burden was not directly associated with SCM (effect coefficient [C'] = 0.0805; 95% confidence interval, -0.048 to 0.209; P = . 217). There was, however, an indirect pathway between symptomburden and SCM through fatalism (ab = -0.040; 95% confidence interval, -0.097 to -0.002). Thosewith higher symptom burden were more fatalistic (a = 0.004, P = .015), and greater fatalism was associated with worse SCM (b = -9.132, P = .007). Conclusion: Symptom burden, not directly associated with SCM, is associated through the mediator of fatalism. Interventions to improve SCM should include strategies to mitigate fatalistic views. Self-care management interventions should focus on promoting internal locus of control or increasing perceptions of perceived control to decrease fatalism and improve engagement in self-care. [ABSTRACT FROM AUTHOR]

Background: Antioxidant insufficiency, elevated inflammatory markers, and poor health-related quality of life (HRQOL) are prevalent in patients with heart failure (HF). Objective: The objective of this study was to examine the associations among dietary antioxidant intake, inflammatory markers, and HRQOL in patients with HF. Methods: This was a secondary analysis of 265 patients with HF who completed a 4-day food diary. We assessed intake of 10 antioxidants: alpha carotene, beta carotene, beta cryptoxanthin, lutein, zeaxanthin, lycopene, vitamins C and E, zinc, and selenium. Antioxidant insufficiency was reflected by a measured level for each antioxidant that was below the estimate average requirement or lower than median for antioxidants without an estimate average requirement. Inflammatory markers including serum C-reactive protein, cytokines (interleukins 6 and 10), tumor necrosis factor-alpha, and soluble receptors (sTNFR1 and sTNFR2) were assessed with enzyme immunoassay. Health-related quality of life was measured using the Minnesota Living with Heart Failure at 12 months. Results: Dietary antioxidant insufficiency predicted C-reactive protein (β = 0.135, P =.032) and interleukin 10 (β = −.155, P =.027). Patients with higher antioxidant insufficiency had higher C-reactive protein and lower interleukin 10. Both antioxidant insufficiency (β = 0.13, P =.049) and higher C-reactive protein (β = 0.16, P =.019) were independently associated with poorer HRQOL while adjusting for covariates. Conclusions: Dietary antioxidant insufficiency was associated with increased markers of inflammation and poorer HRQOL. Improvement of diet quality among patients with HF may be a fruitful area of research for enhancing HRQOL. [ABSTRACT FROM AUTHOR]

Background: African Americans are at the highest risk of developing heart failure (HF) compared with other races and are hospitalized at 7 to 8 times the rate of Whites. Poor overall self-care, low self-care confidence, and lower levels of perceived social support are factors related to increased risk for hospitalizations in HF. Yet, limited evidence is available regarding the factors that may differentially impact self-care confidence by race in patients with HF. Objective: The aim of this study was to examine to what extent race moderates the relationship between perceived social support and self-care confidence. Method: This is a secondary analysis of cross-sectional data from African American and White patients with HF in North America (n = 429). Patients completed the Multidimensional Scale of Perceived Social Support and the Self-Care Confidence Scale of the Self-Care of Heart Failure Index. A moderation analysis was conducted using hierarchal linear regression. Results: Sample mean age was 60.8 ± 11.5 years, 22.4% were African American, and 54.7% were in New York Heart Association class I or II. Moderation analyses yielded a significant interaction of perceived social support and race, showing White patients, not African Americans, have significantly different self-care confidence scores depending on level of social support: White, b = 0.224, 95% confidence interval [0.046–0.094], t = 5.65, and P <.001; African American, b = −0.776, 95% confidence interval [−0.049 to 0.060], t = 0.212, and P =.832. Conclusions: Our findings show a variable effect of perceived social support on self-care confidence as a function of race, suggesting the need for further research to develop and test interventions tailored to race and levels of social support in HF. [ABSTRACT FROM AUTHOR]

Background: Heart failure (HF) is associated with chronic inflammation, which is adversely associated with survival. Although sex-related differences in inflammation have been described in patients with HF, whether sex-related differences in inflammation are associated with event-free survival has not been examined. Aim: The aim of this study was to determine whether the association between inflammation as indicated by tumor necrosis factor-α and event-free survival differs between men and women with HF after controlling for demographic and clinical variables. Method: This was a secondary analysis of data from 301 male (age, 61.0 ± 11.4 years) and 137 female (age, 60.3 ± 12.1 years) patients with HF. Serum levels of soluble tumor necrosis factor receptor 1 were used to indicate inflammatory status. Patients were grouped according to median split of soluble tumor necrosis factor receptor 1 level and sex into male with low inflammation (≤1820 pg/mL) (n = 158) or high inflammation (>1820 pg/mL) (n = 143), and female with low inflammation (n = 63) or high inflammation (n = 74). Cox regression models were run separately for men and women to determine whether inflammation contributed to differences in event-free survival between sexes with HF. Results: There were 84 male (27.9%) and 27 female (19.7%) patients who had an event. Event-free survival in women did not differ by the severity of inflammation in the Cox regression analysis. In contrast, men with high inflammation had 1.85 times higher risk for an event compared with men with low inflammation. Conclusion: These data provide evidence that inflammation contributed to differences in event-free survival in men but not women with HF. Clinicians should be aware that men who have higher inflammation may be at a greater risk of HF or cardiac-related events than others with HF. [ABSTRACT FROM AUTHOR]

Background: Adherence to a low-sodium diet is essential to self-care of heart failure (HF). Genetic determinants of preference for high-sodium foods may impede adherence but have not been well-studied. Objective: Our purpose was to examine if TAS2R38 haplotype predicted salt taste sensitivity and dietary sodium intake among patients with HF. Method: This pilot study used baseline data from a large interventional randomized control trial to support adherence toa low-sodium diet in patients with HFand their family caregivers. Participants were tested for salt taste sensitivity and provided a 24-hour urinary sodium sample and a blood sample for DNA analysis at baseline. Fungiform papillae were counted. χ² Test and 1-way analysis of variance were used to compare haplotype groups. Linear regression was performed to examine predictors of salt taste sensitivity and 24-hour urinary sodium excretion, controlling for age, gender, ethnicity, smoking status, and fungiform papillae density. Results: There were 42 patients with HF and their family caregivers (age, 64.6 ± 13.4 years, 46.5% male, 97.7% white, and 90.7% nonsmoker). Pronine-alanine-valine homozygous haplotype predicted lower urinary sodium excretion (b = -1780.59, t41 = -2.18, P = .036), but genotype was not a significant predictor of salt taste sensitivity. Conclusions: The results of our study partially supported our hypothesis that PAV homozygous haplotype predicts 24-hour urinary sodium excretion. With our small sample size, more research is needed. Understanding genetic influences on taste can lead to development of educational interventions tailored to patients with HF and their family caregivers to better support dietary adherence. [ABSTRACT FROM AUTHOR]

Introduction: Family caregivers of patients with heart failure (HF) commonly experience emotional distress and caregiving burden. Despite their caregiving distress, caregivers may experience positive or negative changes in their life compared with before caregiving. Greater perceived control is associated with better health outcomes, but little is known about whether perceived control is related to caregivers' perceptions of positive or negative changes in life, independent of their distress and burden in providing care for patients with HF. The specific aims were to compare emotional distress and caregiving burden between caregivers who perceived positive versus negative changes in life due to caregiving and to examine whether perceived control predicts the perception of positive or negative changes in life while controlling for emotional distress and caregiving burden. Methods: Primary caregivers of patients with HF (N = 140, 75% women) completed questionnaires about perceived positive or negative changes in life as a result of caregiving, perceived control, depressive symptoms, anxiety, and caregiving burden. Independent t test, χ², and logistic regressions were used to accomplish specific aims. Results: Compared with caregivers who reported positive changes in life (42%), caregivers who perceived negative changes in life (58%) had higher levels of depressive symptoms, anxiety, and caregiving burden. Lower level of perceived control was an independent predictor of perceived negative changes in life, controlling forage, gender, depressive symptoms, anxiety, and caregiving burden (odds ratio, 0.89; 95% confidence interval, 0.79-0.99; P = .0038). Conclusion: Greater perceived control played a protective role for caregivers independent of caregiver burden. Interventions designed to enhance perceived control may improve caregivers' perceptions of changes in their life. [ABSTRACT FROM AUTHOR]

Background: Symptom status is an important indicator of disease progression in patients with heart failure (HF). Perceived control is a target of most self-care interventions and is associated with better outcomes in HF; however, little is known about the relationship between perceived control and symptom status in patients with HF. Objective: The aims of this studywere to (1) determine the relationship of perceived control to HF symptomstatus and (2) examine the associations of perceived control to self-care and of self-care to symptom status. Methods: A total of 115 patients with HF were included. Data on symptom status (Memorial Symptom Assessment Scale-HF), perceived control (Control Attitudes Scale-Revised), and self-care (Self-Care of Heart Failure Index) were collected. Other covariates included were age, gender, New York Heart Association class, comorbidity burden, and depressive symptoms. Multiple regression analyses were performed to analyze the data. Results: Lower perceived control predicted worse symptom status after controlling for covariates (P = .009). Other covariates predictive of worse symptom status were younger age, New York Heart Association class III/IV, and higher levels of depressive symptoms. Higher levels of perceived control were associated with better self-care (P = .044). Better self-care was associated with better symptom status (P = .038). Conclusions: Lower levels of perceived control were independently associated with worse symptom status in patients with HF. Intervention strategies targeting perceived control should be tested to determine whether they could improve symptom status. [ABSTRACT FROM AUTHOR]

Background: To improve the health outcomes of survivors of stroke, it is critical that they are highly motivated to engage in rehabilitation activities. Despite the increasing prevalence of strokes among middle-aged adults, there is limited knowledge regarding factors that may affect survivors' motivation to engage in rehabilitation. Objective: The aim of this study was to examine the relationship among factors that predict the rehabilitation motivation of middle-aged survivors after a stroke through structural equation modeling. Methods: A total of 200 middle-aged (40--64 years) survivors of stroke from 9 rehabilitation hospitals in Korea completed questionnaires on depressive symptoms, self-efficacy, social support, and rehabilitation motivation. Information on clinical characteristics, including physical function (activities performed during daily life), was collected through the review of medical records. Structural equation modeling was used to construct a prediction model of rehabilitation motivation. Results: The average subject's age was 56.2 ± 6.6 years, and the mean time since the event of their stroke was 15.02 ± 8.95 months. Subjects' self-efficacy (being able to live everyday life) after their stroke (β = .500, P < .001) and the social support provided by family and medical personnel (β = .284, P < .010) directly affected their rehabilitation motivation. The bootstrapping method showed that depressive symptoms indirectly affected rehabilitation motivation through self-efficacy, as did physical function. Conclusions: In middle-aged survivors of stroke, self-efficacy and social support play a critical role in maintaining intrinsic motivation to engage in rehabilitation activities. Self-efficacy should be evaluated periodically and improved by encouraging individuals to achieve goals, emphasizing their self-regulation, especially among those who reported depressive symptoms and low physical function. [ABSTRACT FROM AUTHOR]

Background: In patients with heart failure (HF), good health-related quality of life (HRQOL) is as valuable as, or more valuable than, longer survival. However, HRQOL is remarkably poor, and HF symptoms are strongly associated with poor HRQOL. Yet, the multidimensional, modifiable predictors have been rarely examined. Objective: The aim of this study was to examine the baseline psychosocial, behavioral, and physical predictors of HF symptoms and HRQOL at 12 months and the mediator effect of HF symptoms in the relationship between depressive symptoms and HRQOL. Methods: We collected data from 94 patients with HF (mean ± SD age, 58 ± 14 years). Data included sample characteristics, depressive symptoms, perceived control, social support, New York Heart Association (NYHA) functional class, medication adherence, sodium intake, self-care management, and HF symptoms at baseline, as well as HF symptoms and HRQOL at 12 months. Multiple regression analyses were performed to address the purpose. Results: Baseline depressive symptoms (P < .001), medication adherence (P = .010), sodium intake (P = .032), and NYHA functional class (P = .040) significantly predicted 12-month HF symptoms, controlling for covariates (F = 7.363, R² = 47%, P < .001). Baseline medication adherence (P = .001), NYHA functional class (P < .001), and HF symptoms (P = .013) significantly predicted 12-month HRQOL (F = 10.701, R² = 59%, P < .001). Baseline HF symptoms fully mediated the relationship between baseline depressive symptoms and 12-monthHRQOL. Conclusion: Symptoms of HF and HRQOL could be improved by targeting multidimensional, modifiable predictors, such as self-care, depressive symptoms, and NYHA functional class. [ABSTRACT FROM AUTHOR]

Background: Vitamin C deficiency is prevalent in adults with heart failure (HF). Little is known about the relationship of dietary vitamin C deficiency with health outcomes in adults with HF. Objective: The study's aim was to determine the relationships of vitamin C deficiency measured at baseline with health-related quality of life (HRQOL) and cardiac event-free survival in patients with HF measured 1 year later. Method: A total of 251 patients with HF completed a 4-day food diary. Dietary vitamin C deficiency was defined as daily intake less than the estimated average requirement from the Institute of Medicine of 75 mg/d for men and 60 mg/d for women. Health-related quality of life was assessed using the Minnesota Living with Heart Failure Questionnaire at 12 months. Patients were followed for a median of 1 year to determine time to the first event of cardiac-related hospitalization or death. Data were analyzed by hierarchical linear and Cox proportional hazards regressions. Results: One hundred patients (40%) had vitamin C deficiency. Dietary vitamin C deficiency was associated with poorer HRQOL at 12 months (β = 0.16, P = .02) after controlling for demographic and clinical variables. During the follow-up period, 59 patients (24%) had cardiac events. In Cox regression, vitamin C deficiency predicted shorter cardiac event-free survival after adjusting for the same covariates (hazards ratio, 1.95; 95% confidence interval, 1.08-3.51). Conclusion: Vitamin C deficiency was associated with poorer HRQOL and shorter cardiac event-free survival in patients with HF. The findings suggest that encouraging patients with HF to consume a diet rich in fruits/vegetables to prevent vitamin C deficiency may lead to better health outcomes. [ABSTRACT FROM AUTHOR]

Background: Depressive symptoms hinder heart failure patients' engagement in self-care. As social support helps improve self-care and decrease depressive symptoms, it is possible that social support buffers the negative impact of depressive symptoms on self-care. Objective: The purpose of this study is to examine the effect of living arrangements as an indicator of social support on the relationship between depressive symptoms and self-care in heart failure patients. Methods: Stable heart failure patients (N = 206) completed the Patient Health Questionnaire-9 to measure depressive symptoms. Self-care (maintenance, management, and confidence) was measured with the Self-Care of Heart Failure Index. Path analyses were used to examine associations among depressive symptoms and the self-care constructs by living arrangements. Results: Depressive symptoms had a direct effect on self-care maintenance and management (standardized β = -0.362 and -0.351, respectively), but not on self-care confidence in patients living alone. Depressive symptoms had no direct or indirect effect on any of the 3 self-care constructs in patients living with someone. Conclusions: Depressive symptoms had negative effects on self-care in patients living alone, but were not related to self-care in patients living with someone. Our results suggest that negative effects of depressive symptoms on self-care are buffered by social support. [ABSTRACT FROM AUTHOR]