Improvement in psychosocial functioning during an intensive cardiovascular lifestyle modification program

Biopsychosocial Profiles of Patients With Cardiac Disease in Remote Rehabilitation Processes: Mixed Methods Grounded Theory Approach

Background

Digital development has caused rehabilitation services and rehabilitees to become increasingly interested in using technology as a part of rehabilitation. This study was based on a previously published study that categorized 4 groups of patients with cardiac disease based on different experiences and attitudes toward technology (e-usage groups): feeling outsider, being uninterested, reflecting benefit, and enthusiastic using.

Objective

This study identifies differences in the biopsychosocial profiles of patients with cardiac disease in e-usage groups and deepen the understanding of these profiles in cardiac rehabilitation.

Methods

Focus group interviews and measurements were conducted with 39 patients with coronary heart disease, and the mean age was 54.8 (SD 9.4, range 34-77) years. Quantitative data were gathered during a 12-month rehabilitation period. First, we used analysis of variance and Tukey honestly significant difference test, a t test, or nonparametric tests—Mann–Whitney and Kruskal–Wallis tests—to compare the 4 e-usage groups—feeling outsider, being uninterested, reflecting benefit, and enthusiastic using—in biopsychosocial variables. Second, we compared the results of the 4 e-groups in terms of recommended and reference values. This analysis contained 13 variables related to biomedical, psychological, and social functioning. Finally, we formed biopsychosocial profiles based on the integration of the findings by constant comparative analysis phases through classic grounded theory.

Results

The biomedical variables were larger for waistline (mean difference [MD] 14.2; 95% CI 1.0-27.5; P=.03) and lower for physical fitness (MD −0.72; 95% CI −1.4 to −0.06; P=.03) in the being uninterested group than in the enthusiastic using group. The feeling outsider group had lower physical fitness (MD −55.8; 95% CI −110.7 to −0.92; P=.047) than the enthusiastic using group. For psychosocial variables, such as the degree of self-determination in exercise (MD −7.3; 95% CI −13.5 to −1.1; P=.02), the being uninterested group had lower values than the enthusiastic using group. Social variables such as performing guided tasks in the program (P=.03) and communicating via messages (P=.03) were lower in the feeling outsider group than in the enthusiastic using group. The feeling outsider and being uninterested groups had high-risk lifestyle behaviors, and adherence to the web-based program was low. In contrast, members of the being uninterested group were interested in tracking their physical activity. The reflecting benefit and enthusiastic using groups had low-risk lifestyle behavior and good adherence to web-based interventions; however, the enthusiastic using group had low self-efficacy in exercise. These profiles showed how individuals reflected their lifestyle risk factors differently. We renamed the 4 groups as building self-awareness, increasing engagement, maintaining a healthy lifestyle balance, and strengthening self-confidence.

Conclusions

The results facilitate more effective and meaningful personalization guidance and inform the remote rehabilitation. Professionals can tailor individual web-based lifestyle risk interventions using these biopsychosocial profiles.

A Comparative Effectiveness Review: RESPONSIVENESS OF PATIENT OUTCOME MEASURES IN CARDIAC AND PULMONARY REHABILITATION

BACKGROUND

Cardiac and pulmonary rehabilitation have been shown to reduce the symptoms of disease, as well as reducing health care utilization. To ensure the continuation of these programs, patient outcome measures (POMs) are essential to map treatment effectiveness. This review is a comparative effectiveness literature review of studies with a pre- to post-POM assessment of responsiveness (ie, change in health status over time).

METHODS

A quality review of the literature included not only randomized controlled trials but also parallel studies, as well as all observational and retrospective trials. This review included a list of articles and their characteristics; a quality assessment of the literature and a list of POMs utilized in this setting were assessed for responsiveness.

RESULTS

There was inconsistency in the literature with the measurement of responsiveness or effect size. The most commonly used POM was the SF-36; however, it was found to be less responsive to change in health status pre- to post-rehabilitation, particularly in the mental domain of this instrument. The most responsive POM in this setting was the Global Mood Scale.

CONCLUSION

The surveyed literature found no "gold standard" POM for either cardiac rehabilitation or pulmonary rehabilitation but there was some preference for the disease-specific POMs; however, some of these instruments lose their discriminatory power at the end of the rehabilitation period. This literature review found that a Likert scale is more responsive than a dichotomous scale and that a simple questionnaire is more responsive in a pre- to post-setting than a complex questionnaire.

Prioritization, Development, and Validation of American Association of Cardiovascular and Pulmonary Rehabilitation Performance Measures

BACKGROUND

In 2014, the American Association of Cardiovascular and Pulmonary Rehabilitation Quality of Care Committee was asked to develop performance measures (PMs) to assess program quality and aid in program improvement and certification.

METHODS

A 3-step process was used to prioritize, develop, and then validate new PMs for both cardiac and pulmonary rehabilitation programs. First, we surveyed national leadership, medical directors, and program directors to identify and rank various American Association of Cardiovascular and Pulmonary Rehabilitation potential PM topics. Then, the face validity of the drafted PMs was assessed in a second national survey. Finally, we assessed the inter- and intrarater reliability and feasibility of each PM by abstracting patient charts at programs throughout the United States. At each step, modifications were made to refine and improve the measures for clarity, reliability, and consistency.

RESULTS

Through survey answers received from 302 people (19% response rate), we identified 5 categories for PM development: optimal blood pressure control, tobacco use cessation, and improvement in functional capacity, depression, and sensation of dyspnea. After drafting the PMs, a second survey with 82 respondents (57% response rate), found that the proposed PMs had good face validity. Finally, we found excellent inter- and intrarater reliability for the blood pressure, functional capacity, depression, and dyspnea measures (κ generally >0.80.) However, validity concerns were raised about the tobacco intervention PM as written, and it continues to undergo further refinement and testing.

CONCLUSIONS

We developed and validated 5 new PMs for use in cardiac and pulmonary rehabilitation program quality assessment, improvement, and certification.

Association Between Depressive Symptoms and Exercise Capacity in Patients With Heart Disease: A META-ANALYSIS

PURPOSE

Depression and reduced exercise capacity are risk factors for poor prognosis in patients with heart disease, but the relationship between the 2 is unclear. We assessed the relationship between depressive symptoms and exercise capacity in patients with heart disease.

METHODS

PubMed, Cochrane Library, Google Scholar, and ProQuest databases were browsed for English-language studies published from January 2000 to September 2013. Studies including adult patients with coronary artery disease, heart failure, congenital heart disease, and implantable cardioverter defibrillator, reporting correlation between a depression scale and exercise capacity ((Equation is included in full-text article.)O2peak, peak watts, estimated metabolic equivalents, and incremental shuttle walk test distance), as well as studies from which such a correlation could be calculated and provided by the authors, were included. Correlation coefficients (CCs) were converted to Fischer z values, and the analysis was performed using a random-effects model. Then, summary effects and 95% CIs were converted back to CCs.

RESULTS

Fifty-nine studies (25 733 participants) were included. Depressive symptoms were inversely correlated to exercise capacity (CC = -0.15; 95% CI, -0.17 to -0.12). Heterogeneity was significant (I = 64%; P < .001). There was no evidence of publication bias (Fail-safe N = 4681; Egger test: P = .06; Kendall test: P = .29).

CONCLUSIONS

Patients with heart disease and elevated depressive symptoms may tend to have reduced exercise capacity, and vice versa. This finding has clinical and prognostic implications. It also encourages research on the effects of improving depression on exercise capacity, and vice versa. The effects of potential moderators need to be explored.

Cardiovascular diseases, metabolic syndrome and health behaviours of postmenopausal women working in agriculture

INTRODUCTION

The objective of the study was to examine the impact of occurrence of cardiovascular diseases (CVDs) and metabolic syndrome (MS) diagnoses on the frequency of health behaviours in postmenopausal women working in agriculture.

MATERIAL AND METHODS

Eight hundred and ten postmenopausal women living in rural areas and working in agriculture, aged 46-70 and at least 12 months from the last menstrual period, were examined. Analysis of variance with multiple comparison tests was used to compare the Inventory of Health Behaviours among the women with and without CVDs and MS.

RESULTS

The frequency of some health behaviours, mainly health practices, is higher in postmenopausal women working in agriculture with CVDs or MS than in those without CVDs or MS (p = 0.045). Women with such disorders more often limit their physical effort (p = 0.029), try to be less overworked (p < 0.001) and to take more rest (p = 0.027), more often limit consumption of animal fat and sugar (p = 0.024), more regularly visit physicians (p = 0.003) and more often take seriously recommendations concerning their health. However, an insufficient frequency of health behaviours was observed among both the healthy women and those with metabolic disorders and CVDs. One third of all the examined women had a high frequency of health behaviours, one third had an average frequency and one third had a low frequency; hence actions should be taken to improve the situation.

CONCLUSIONS

Postmenopausal women working in agriculture more often perform beneficial health behaviours if they have MS and CVDs diagnosed in comparison to healthy women.

Revisiting the health effects of psychological stress-its influence on susceptibility to ionizing radiation: a mini-review

Both psychological stress (PS) and ionizing radiation (IR) cause varied detrimental effects on humans. There has been no direct evidence so far showing PS alone could cause cancer; however, long-lasting PS may affect our overall health and ability to cope with cancer. Due to their living conditions and occupations, some people may encounter concurrent exposure to both PS and IR to a high extent. In addition to possible health effects resulting directly from exposure to IR on these people, fear of IR exposure is also a cause of PS. The question of whether PS would influence susceptibility to IR, radiocarcinogenesis in particular, is of great concern by both the academic world and the public. Recently, investigations using animal PS models demonstrated that PS could modulate susceptibility to IR, causing increased susceptibility to radiocarcinogenesis in Trp53-heterozygous mice, hematological toxicity in peripheral blood and elevated chromosome aberration (dicentrics) frequency in splenocytes of Trp53-wild-type mice. To actively reduce health risk from exposure to IR, further studies are needed to cumulate more evidence and provide insights into the mechanisms underlying the alterations in susceptibility due to PS modulation. This mini-review gives a general overview of the significance of PS effects on humans and experimental animals, with a special focus on summarizing the latest weight-of-evidence approaches to radiobiological studies on PS-induced alterations in susceptibility in experimental animal models. The susceptibility being investigated is mainly in the context of the impact of the modulatory effect of PS on radiocarcinogenesis; we seek to improve understanding of the combined effects of exposure to both PS and IR in order to facilitate, via active intervention, strategies for radiation risk reduction.

Gene expression profiling during intensive cardiovascular lifestyle modification: Relationships with vascular function and weight loss

Heart disease and related sequelae are a leading cause of death and healthcare expenditure throughout the world. Although many patients opt for surgical interventions, lifestyle modification programs focusing on nutrition and exercise have shown substantial health benefits and are becoming increasing popular. We conducted a year-long lifestyle modification program to mediate cardiovascular risk through traditional risk factors and to investigate how molecular changes, if present, may contribute to long-term risk reduction. Here we describe the lifestyle intervention, including clinical and molecular data collected, and provide details of the experimental methods and quality control parameters for the gene expression data generated from participants and non-intervention controls. Our findings suggest successful and sustained modulation of gene expression through healthy lifestyle changes may have beneficial effects on vascular health that cannot be discerned from traditional risk factor profiles. The data are deposited in the Gene Expression Omnibus, series GSE46097 and GSE66175.

Intensive Cardiovascular Risk Reduction Induces Sustainable Changes in Expression of Genes and Pathways Important to Vascular Function

Background—

Healthy lifestyle changes are thought to mediate cardiovascular disease risk through pathways affecting endothelial function and progression of atherosclerosis; however, the extent, persistence, and clinical significance of molecular change during lifestyle modification are not well known. We examined the effect of a rigorous cardiovascular disease risk reduction program on peripheral blood gene expression profiles in 63 participants and 63 matched controls to characterize molecular responses and identify regulatory pathways important to cardiovascular health.

Methods and Results—

Dramatic changes in dietary fat intake (−61%; P <0.001 versus controls) and physical fitness (+34%; P <0.001) led to significant improvements in cardiovascular disease risk factors. Analysis of variance with false discovery rate correction for multiple testing ( P <0.05) identified 26 genes after 12 weeks and 143 genes after 52 weeks that were differentially expressed from baseline in participants. Controls showed little change in cardiovascular disease risk factors or gene expression. Quantitative reverse transcription polymerase chain reaction validated differential expression for selected transcripts. Lifestyle modification effectively reduced expression of proinflammatory genes associated with neutrophil activation and molecular pathways important to vascular function, including cytokine production, carbohydrate metabolism, and steroid hormones. Prescription medications did not significantly affect changes in gene expression.

Conclusions—

Successful and sustained modulation of gene expression through lifestyle changes may have beneficial effects on the vascular system not apparent from traditional risk factors. Healthy lifestyles may restore homeostasis to the leukocyte transcriptome by downregulating lactoferrin and other genes important in the pathogenesis of atherosclerosis.

Clinical Trial Registration—

URL: www.clinicaltrials.gov . Unique identifier: NCT01805492

Effects of social support and stressful life events on health-related quality of life in coronary artery disease patients

OBJECTIVE

The objective of this study was to examine the effects of social support and stressful life events on health-related quality of life (HRQoL) in coronary artery disease (CAD) patients.

METHODS

Five hundred sixty consecutive patients with CAD attending cardiac rehabilitation program were invited to participate in the study. Data on stressful life events, perceived social support, and HRQoL were collected from the self-administered questionnaires, Social Readjustment Rating Scale, Multidimensional Scale of Perceived Social Support, and 36-Item Short Form Medical Outcome Questionnaire, respectively.

RESULTS

In male patients, multivariate linear regression analyses revealed that physical domains of the HRQoL, specifically physical functioning, were associated with clinical aspects of the CAD, such as New York Heart Association class and angina pectoris class, and psychological domains of the HRQoL such as mental health, energy/vitality, and social functioning were associated with social characteristics such as stressful life events and perceived social support. In women, both physical and psychological domains of the HRQoL were associated only with social characteristics, especially with perceived social support.

CONCLUSION

Perceived social support and stressful life events have independent significant effects on the HRQoL in CAD patients, especially in female patients. When planning cardiac rehabilitation programs, special attention should be paid to patients who experience high levels of stress and have low social support.

Effects of the comprehensive cardiac rehabilitation program on psychological factors and quality of life among coronary heart disease patients

The Comprehensive Lifestyle Intervention, which integrates psychological and educational intervention, is a program to improve self-efficacy, self-regulation, self-care, body mass index and quality of life of the patients with coronary heart disease during early stages following hospitalization. The purpose of this study was to investigate the effects of the Comprehensive Cardiac Rehabilitation Program affecting psychological factors including self-efficacy, self-regulation, self-care, quality of life (QoL), and body mass index (BMI). This study was a quasi-experimental research with a repeated one group design. Eighty patients with coronary artery disease were recruited from either the Medicine or Surgical Ward at the Phramongkutklao Hospital where the patients joined the Comprehensive Cardiac Rehabilitation Program, which included attending exercising practice and receiving face-to-face counseling while being admitted to the hospital. Telephone counseling was thereafter performed one week after being discharged from the hospital, followed by undergoing individual or group counseling at the Cardiac Rehabilitation Clinic the following week. The follow-up period was performed within six weeks after hospitalization. Data was collected on two occasions before discharging from the hospital (pretest) and six weeks after (post-test) by using the self-efficacy, self-regulation, and self-care questionnaires, as well as the Short Form(SF) -36 (Thai version). The results indicated that by six weeks, 50%, 58.80%, 46.20%, and 72.50% of patients, respectively, had experienced increases with self-efficacy, self-regulation, self-care, and quality of life scores, while 12.50% of patients had decreased their body mass index in comparison with the pretest score. From the paired t-test, the self-efficacy, self-regulation and quality of life scores were statistically significant, having increased to the p<0.01 level; self-care was statistically significant, having increased to the p<0.05 level along with body mass index, which was statistically significant having experienced a decrease to the p<0.01 level.

Posthospital Heart-Healthy Behaviors in Adults With Comorbid Diabetes

The purpose of these secondary analyses was to examine relationships between patient factors and patient-provider decision-making style (PDM) on heart-healthy behavior changes in 142 adults with diabetes after hospitalization for an acute coronary syndrome (ACS). A clinical trial randomized adults to either control or a telephone coaching intervention. Generalized estimating equations were used to analyze the relationship between patient factors and PDM style on longitudinal postdischarge changes in three heart-healthy behaviors, avoiding high fat foods, weight loss, and increased physical activity. Neither PDM style nor telephone coaching intervention affected heart-healthy behaviors in this population. Although adults with diabetes preferred collaborative patient-provider decision-making, present levels of provider engagement were not sufficient to support behavior change. Results suggest the need for sustained and tailored nursing interventions to facilitate heart-healthy behavior changes in adults with diabetes after ACS hospitalization.

Five-year effect of community-based intervention Hartslag Limburg on quality of life: a longitudinal cohort study

Background

During the past decade, quality of life (QoL) has become an accepted measure of disease impact, therapeutic outcome, and evaluation of interventions. So far, very little is known about the effects of community-based interventions on people's QoL. Therefore, the effect of an integrative cardiovascular diseases community-based intervention programme 'Hartslag Limburg' on QoL after 5-years of intervention is studied.

Methods

A longitudinal cohort study comparing 5-year mean change in QoL between the intervention (n = 2356) and reference group (n = 758). QoL outcomes were the physical and mental health composite scores (PCS and MCS) measured by the RAND-36. Analyses were stratified for gender and socio-economic status (SES).

Results

After 5-years of intervention we found no difference in mean change in PCS and MCS between the intervention and reference group in both genders and low-SES. However, for the moderate/high SES intervention group, the scales social functioning (-3.6, 95% CI:-6.1 to -1.2), physical role limitations (-5.3, 95% CI:-9.6 to -1.0), general mental health (-3.0, 95% CI:-4.7 to -1.3), vitality (-3.2, 95% CI:-5.1 to -1.3), and MCS (-1.8, 95% CI:-2.9 to -0.6) significantly changed compared with the reference group. These differences were due to a slight decrease of QoL in the intervention group and an increase of QoL in the reference group.

Conclusion

Hartslag Limburg has no beneficial effect on people's physical and mental QoL after 5-years of intervention. In fact, subjects in the intervention group with a moderate/high SES, show a decrease on their mental QoL compared with the reference group.

The influence of long-term awareness of hyperlipidemia and of 3 years of dietary counseling on depression, anxiety, and quality of life

OBJECTIVE

The purpose of this study is to investigate the long-term effects of participation in a cardiovascular screening program and of dietary counseling on self-reported psychosocial outcomes and health concerns.

METHODS

High-risk subjects (n=563) with hyperlipidemia from the Oslo Diet and Antismoking Study (1972-1977) were reexamined after 25 years and randomly assigned to a new 3-year prospective 2x2 factorial placebo-controlled study in 1997 of n-3 polyunsaturated fatty acids and/or dietary counseling. Hospital Anxiety and Depression Scale (HADS), Life Satisfaction Index (LSI), and a new questionnaire on health concerns and behavior in response to risk information were collected at the 25-year follow-up. Hospital Anxiety and Depression Scale and LSI were evaluated at the end of the 3-year Diet and Omega-3 Intervention Trial on atherosclerosis (DOIT) in 505 subjects.

RESULTS

Twenty-five years after the screening program, HADS-anxiety was similar to the Norwegian norms (3.3 vs. 3.5), while HADS-depression was significantly lower (3.6 vs. 4.1, P<.01). Patients reported that 25 years of awareness of hyperlipidemia had influenced health concerns through a moderate change in diet habits, some restriction in life conduct, but an improvement of the total life situation. After a novel 3-year intervention in DOIT, there was no difference between the dietary counseling and control group with regard to anxiety, depression, or life satisfaction, but HADS-anxiety increased significantly (4.0 vs. 3.3, P<.001) in both groups.

CONCLUSION

Compared to the general population, screening-positive subjects did not have increased mental distress 25 years after screening, and beneficial health behavior persisted. Dietary counseling did not affect psychosocial outcomes.

Impact and clinical management of depression in patients with coronary artery disease

The rates of major adverse coronary events, including recurrent ischemic events and death, in patients with coronary artery disease (CAD) have been shown to be significantly increased in patients with depression. In addition, health care costs are higher and health-related quality of life is lower in depressed patients with CAD. Several pathophysiologic mechanisms have been proposed for the association of increased events seen in this population. Studies have focused on antidepressants (specifically, selective serotonin reuptake inhibitors and mirtazapine), psychotherapy (cognitive behavioral therapy and interpersonal psychotherapy), and a wide range of other nonpharmacologic interventions. Pharmacologic and nonpharmacologic treatments are known to improve depressive symptoms in patients with CAD, but their effects on outcomes such as mortality and hospital admissions remain controversial. If treatment of depression is warranted, strategies should include sertraline or citalopram, with or without cognitive behavioral therapy, based on the known efficacy and safety of the drugs in this population. Nonpharmacologic therapy such as aerobic exercise has been shown to improve not only depression but also cardiovascular health. When selecting an appropriate antidepressant, clinicians should consider their patients' comorbid conditions and the potential for drug interactions, and treatment should be frequently monitored. Screening for depression in patients with cardiac disease should be instituted on a routine basis by using either case-finding or symptom-triggered approaches. Based on the high prevalence of depression and its known adverse effects in patients with CAD, future research is needed to help determine the role of antidepressants and nonpharmacologic strategies in improving outcomes in patients with both comorbidities.

Effects of cardiovascular lifestyle change on lipoprotein subclass profiles defined by nuclear magnetic resonance spectroscopy

Background

Low-density lipoprotein (LDL) cholesterol lowering is a primary goal in clinical management of patients with cardiovascular disease, but traditional cholesterol levels may not accurately reflect the true atherogenicity of plasma lipid profiles. The size and concentration of lipoprotein particles, which transport cholesterol and triglycerides, may provide additional information for accurately assessing cardiovascular risk. This study evaluated changes in plasma lipoprotein profiles determined by nuclear magnetic resonance (NMR) spectroscopy in patients participating in a prospective, nonrandomized lifestyle modification program designed to reverse or stabilize progression of coronary artery disease (CAD) to improve our understanding of lipoprotein management in cardiac patients.

Results

The lifestyle intervention was effective in producing significant changes in lipoprotein subclasses that contribute to CAD risk. There was a clear beneficial effect on the total number of LDL particles (-8.3%, p < 0.05 compared to matched controls), small dense LDL particles (-9.5%, p < 0.05), and LDL particle size (+0.8%; p < 0.05). Likewise, participants showed significant improvement in traditional CAD risk factors such as body mass index (-9.9%, p < 0.01 compared to controls), total cholesterol (-5.5%, p < 0.05), physical fitness (+37.2%, p < 0.01), and future risk for CAD (-7.9%, p < 0.01). Men and women responded differently to the program for all clinically-relevant variables, with men deriving greater benefit in terms of lipoprotein atherogenicity. Plasma lipid and lipoprotein responses to the lifestyle change program were not confounded by lipid-lowering medications.

Conclusion

In at risk patients motivated to participate, an intensive lifestyle change program can effectively alter traditional CAD risk factors and plasma lipoprotein subclasses and may reduce risk for cardiovascular events. Improvements in lipoprotein subclasses are more evident in men compared to women.

Impact of lifestyle intervention on lost productivity and disability: improving control with activity and nutrition

OBJECTIVE

To evaluate the effectiveness of a lifestyle intervention (LI) in reducing work loss and disability days.

METHODS

One year randomized controlled trial of health plan members (n = 147) with type 2 diabetes and obesity. Members were randomized to modest-cost LI or usual care (UC). Outcomes were group differences in cumulative days either missed at work or with disability using Mann-Whitney U-tests and Poisson regression models.

RESULTS

LI reduced the risk of workdays lost by 64.3% (P <or= 0.001) compared to UC (annual accumulation: UC: 3.49 days vs LI: 0.92 days, P = 0.01). LI decreased the risk of disability days by 87.2% (P = 0.0003) compared to UC (annual accumulation: UC: 5.3 days vs LI: 0.94 days, P <or= 0.001). Similar trends were observed among the subset of people with depression.

CONCLUSION

LIs reduce work loss and disability days associated with diabetes and obesity.

Correlates of depression at baseline among African Americans enrolled in cardiac rehabilitation

PURPOSE

To compare baseline psychosocial characteristics of African Americans entering phase 2 cardiac rehabilitation who have depression symptoms at or above threshold (Center for Epidemiological Studies Depression Scale [CES-D] score >or=16) with those who do not (CES-D score <16).

METHODS

A nonrandom sample of 112 men and women (n = 78 without depression, n = 34 with depression) was recruited through local phase 2 cardiac rehabilitation programs. Data were obtained by a structured interview and brief physical examination using several reliable and valid instruments. Chi-square tests, Kruskal-Wallis 2-sample tests, Spearman rank correlation coefficients, and logistic regression models were used for analyses.

RESULTS

We found that 30% of the participants were above the depression symptom threshold. Demographic characteristics were not significantly different between individuals at or above threshold and those below threshold. However, depressed individuals above threshold were more likely to be dissatisfied with their neighborhoods (P = .01) and had lower optimism scores (P < .0001), higher stress scores (P < .0001), lower adaptive coping scores (P = .05), and higher problematic coping scores (P < .01) than their counterparts who were below threshold. In the logistic regression model, the odds of being above the depression symptom threshold increased with stress (P < .001) and decreased with optimism (P = .03); none of the other psychosocial characteristics had an independent effect on depression symptoms.

CONCLUSIONS

At baseline, African Americans starting phase 2 cardiac rehabilitation with depression symptoms at or above threshold had more stress and fewer stress resilience factors. Assessing depression and stress resilience factors is important and may lead to more active participation in cardiac rehabilitation once enrolled, as well as optimal cardiovascular health outcomes.

Coronary artery diseases in South Asian immigrants: an update on high density lipoprotein role in disease prevention

Over the past several years, the overall prevalence and incidence of cardiovascular diseases (CVD) including coronary artery diseases (CAD) have declined in the United States (US) and in many developed countries. However, among South Asian in general and South Asian immigrants (SAIs) in particular, a disturbing trend toward high rates of CAD has been noted. This trend is associated with a high prevalence of conventional risk factors and metabolic syndrome in this population, yet these conventional risk factors may not account for the greater CAD risk among SAIs. A search for additional markers is warranted, to enable early detection and prevention of CAD in this high risk group. High density lipoprotein (HDL) is one of the predictor of CAD and is considered to be cardio-protective. However, some of the recent studies have shown that HDL is not only ineffective as an antioxidant but, paradoxically, appears to be pro-oxidant, and has been found to be associated with CAD. Such HDL is called dysfunctional HDL. We present here an overview CAD and CAD risk factors in general and dyslipidemias in particular in SAIs. In addition, the evolving theories on dysfunctional HDL and its impact on CAD are also briefly presented.