Predicting intention and behaviour following participation in a theory-based intervention to improve gluten free diet adherence in coeliac disease

Objective: To determine whether changes in theory of planned behaviour (TPB) constructs could predict intention and gluten-free diet (GFD) adherence following participation in an online theory-based intervention designed to improve adherence in coeliac disease.

Design: Theory-based process evaluation of the mechanisms of change over the course of a six-week online intervention. Measures of GFD adherence and TPB variables were administered at baseline and follow-up (immediate post-intervention: n = 74; three-month: n = 68; six-month: n = 65). Hierarchical regression analyses using residualised change scores were conducted at each time point (dependent variables: intention and adherence).

Results: Baseline intention and GFD adherence were the strongest predictors of follow-up intention and adherence, respectively. Change in attitude accounted for significant variance in intention. Change in intention accounted for significant variance in GFD adherence immediately post-intervention; by the six-month follow-up change in perceived behavioural control was the stronger predictor.

Conclusions: Partial support for the hypotheses suggests that, for certain behaviours, the TPB may be relevant in explaining the mechanism of action responsible for changes in intention and behaviour following participation in a behaviour change intervention. Additional predictive pathways are also likely to exist and, in the area of GFD adherence, may include habit strength and actual behavioural control.     

Cortisol changes interact with the effects of a cognitive behavioural psychological preparation for surgery on 12-month outcomes for surgical heart patients

Previous studies offer contradictory evidence regarding the effects of cortisol changes on health outcomes for surgical heart patients. Increased cortisol and inflammation have been related to psychological stress while separate studies have found an inverse relation between cortisol and inflammation. Psychological preparations for surgery can reduce stress and improve outcomes and may interact with cortisol changes. Following from these relationships, we hypothesised that a preparation for surgery will interact with changes in cortisol to affect outcomes. Measures were the SF 36 General Health and Activities, medical visits and satisfaction. Eighty-five patients were randomly assigned to standard care plus a psychological preparation or standard care alone using a single-blind methodology. Data on psychological and biological functioning were collected at admission, 1 day prior and 5 days post-surgery, and 12-months after hospital discharge. General health and activities, and medical visits were related to the interaction of cortisol change and psychological preparation in support of the hypothesis. Patients were more satisfied in the preparation group than controls. Based on these findings, some outcomes from psychological preparations may be affected by changes in levels of cortisol. These results caution against a one-size-fits-all approach to psychological preparations.     

Illness representations,coping and psychological adjustment to Parkinson's disease

The present study reports an application of the common sense model (CSM) of illness representations to the prediction of psychological distress in people with Parkinson's disease (PD). The study sought to (i) examine cross-sectional and prospective associations between illness representations, coping and psychological distress, and (ii) test the hypothesis that coping would mediate any relationships between illness representations and psychological distress. Patients with PD (n = 58) completed the Illness Perception Questionnaire-Revised, the Medical Coping Modes Questionnaire and the Hospital Anxiety and Depression Scale. Patients (n = 57) were followed-up at 6 months. Illness representations explained large amounts of variance in time 1 anxiety (R ² = 0.42) and depression (R ² = 0.44) as well as additional variance in time 2 anxiety (ΔR ² = 0.12) and depression (ΔR ² = 0.09) after controlling for baseline scores. In addition, avoidance mediated the effect of emotional representations on time 1 anxiety, and acceptance-resignation mediated the effects of both consequences and emotional representations on time 1 depression. The present study therefore provides partial support for the mediational model outlined in the CSM, as significant mediation effects were found only in the cross-sectional analyses.     

Causal attributions for heart disease: A systematic review

Abstract

The aims of this systematic literature review are to describe the pattern of attributions made for the causes of heart disease, and to determine how this pattern varies with the method by which attributions are elicited, and the respondent group.

A search yielded 47 papers and reports, containing 54 datasets. Lifestyle factors and chronic stress were the most common causes cited across all datasets. Attributions to stressors and fate or luck were more likely to be reported in studies that used interval rating scales than in studies that used dichotomous ratings. Cardiac patients were more likely to mention stressors and fate or luck as causes of heart disease; non-patients rated being overweight and hypertensive as more important

The differences observed between the responses of patients and non-patients may be due to actor - observer differences, or to a methodological difference: patients are often asked to report their own experiences whereas non-patients are asked about the general case.     

Coping strategies and quality of life in women with advanced breast cancer and their family caregivers

Abstract

This study examines the effects of personal resources of both heart patients and their close social partners on patients' coping and quality of life. Generalized personal resources (self-efficacy beliefs, dispositional optimism, self-regulation competence) and outcomes were assessed by questionnaire 1–3 days before surgery (n = 122) and again six months later (n= 50). Outcome variables were coping styles, social resources (social support and social integration), emotional states, and further measures of quality of life. Patients' personal resources were dominant in the prediction of most of the outcomes. Partners' resources were uniquely related to social support, social integration, and quality of life as perceived by the patients. Further, partners' personality resources predicted changes in patients' loneliness and energy levels during the six-month interval.     

Leisure activities,caregiving demands and catecholamine levels in dementia caregivers

This study examined whether satisfaction from leisure activities moderates the relationship between caregiving demands (i.e., hours per day spent caring for a spouse with dementia) and resting levels of the catecholamines norepinephrine (NE) and epinephrine (EPI). Spousal caregivers (n?=?107; mean age?=?73.95?±?8.12 years) were assessed in home for plasma levels of NE and EPI, amount of care provided, and leisure satisfaction. Regression was used to determine whether leisure satisfaction moderated the relationship between hours providing care per day and catecholamine levels. A significant interaction was found between hours caregiving and leisure satisfaction for NE, but not for EPI. Post hoc regressions were conducted for both NE and EPI. At low leisure satisfaction, time spent caring for a spouse was positively associated with plasma NE (β?=?0.41; p?=?0.005) and EPI (β?=?0.44; p?=?0.003). In contrast, at high levels of satisfaction, time caregiving was not significantly associated with plasma NE (β?=?–0.08; p?=?0.57) or EPI (β?=?0.23; p?=?0.12). These findings suggest that leisure satisfaction may protect caregivers from increases in catecholamines, which have been implicated in cardiovascular risk. Further support for these findings may impact psychological treatments for distressed caregivers.     

Sexual quality of life in patients undergoing coronary artery bypass graft surgery

Objectives: Despite improvements in many domains of functioning, sexual quality of life often remains impaired following coronary artery bypass graft (CABG) surgery. This study examined associations among sexual quality of life, fear of sexual activity and receiving information from providers about sexual activity in CABG patients.

Methods: Participants completed a survey assessing sexual activity, mental health and physical health at baseline (3–5-day post-surgery; n?=?60) and 2-month post-surgery (n?=?42).

Results: Sexual quality of life showed moderate difficulties at baseline and did not improve by follow-up (p values ≥0.09). At follow-up, greater patient fear was associated with lower sexual quality of life in some domains; receiving information was related to lower fear (p values ≤0.03) and greater sexual satisfaction and interest (p values ≤0.04). Suggestive of mediation, there was a significant indirect effect of information on patient fear and of patient fear on sexual interest (p?=?0.05).

Conclusions: Though data were cross-sectional, findings suggest that fears of sexual activity may play a role in lowering CABG patients’ motivation for sexual activity and that receiving information from a medical provider may assist in hastening sexual rehabilitation. Prospective and intervention studies are needed to support findings.     

Cognitive-affective assets and vulnerabilities: Two factors influencing adaptation to Fibromyalgia

The present article describes the associations between hostility and serum lipids in Coronary Artery Disease (CAD) patients. A sample of 212 male coronary patients was used of which 127 recently suffered a Myocardial Infarction (MI), and 85 had undergone either a Coronary Artery Bypass Grafting (CABG) or a Percutaneous Transluminal Coronary Angioplasty (PTCA). Total Cholesterol (TC), High Density Lipoprotein (HDL), Low Density Lipoprotein (LDL) and triglyceride concentrations were measured as well as four hostility factors: ‘Negative Affectivity’ (NA), ‘Anger-In’ (AI), ‘Anger-Out’ (AO) and Coping, i.e. behaviors to control feelings of anger and anxiety. The results indicated that the effects of hostility on lipids were mediated by various factors such as body weight in relation to body length (BMI), Socio-Economic Status (SES), Left Ventricle Ejection Fraction (LVEF) and Age. In subgroups of highly exhausted patients or of patients scoring high on the Type A Behavior Pattern (TABP), however, more direct (unilinear) associations between lipids and hostility were found. The findings of the present study confirm the rather weak association between hostility and blood lipids found elsewhere. Furthermore, a low level of triglycerides was consistently associated with low AO, be it again in interaction with BMI (AO × BMI), both in the group of non-MI patients and in the total sample for those patients who score high on vital exhaustion and/or TABP. This finding provides an extra argument against the popular notion of the healthfulness under all circumstances of anger expression. Until now the exact role of triglycerides as a function of anger/hostility has been under-explored. This issue merits further attention in future research.     

How do psychosocial challenges associated with living with congenital heart disease translate into treatment interests and preferences? A qualitative approach

Objectives: There is an increasing amount of research being conducted regarding the psychosocial challenges associated with living with congenital heart disease (CHD), however little is known about how these challenges influence the type of psychosocial services patients want. This study investigated (1) the type of services patients want; (2) how they want to access these services; and (3) why they want these services.

Methods: Three focus groups with adults with CHD (total of 14 participants aged 19–67) were conducted and thematic analysis was used to identify emerging themes.

Results: Participants described wanting to access specific psychosocial services in three broad categories (counselling, connecting with other adults with CHD and psycho-education) and in three main formats (individual/group therapy, mentorship programmes and patient conferences). Reasons for wanting these services were grouped under two overarching themes, namely intrapersonal factors and interpersonal challenges.

Conclusions: Psychosocial challenges are part of the everyday lives of adults with CHD, yet they are rarely addressed as part of routine medical care. Patients themselves have clear opinions regarding the psychological services most appropriate to target their experiences of living with CHD.     

Evaluation of a Disease-Specific Self-Efficacy Instrument in Adolescents with Sickle Cell Disease and its Relationship to Adjustment

The psychometric properties of a disease-specific instrument used to assess self-efficacy in adolescents with sickle cell disease, the Sickle Cell Self-Efficacy Scale, were evaluated in a sample of 131 adolescents ranging from 11 to 19 years of age. This nine-item instrument was associated with a one-item, general self-efficacy question and an item of self-control. After controlling for age, gender, highest grade of education completed, and the number of individuals in the household, high levels of self-efficacy were related to fewer physical, psychological, and total symptoms. Using the stress process framework to examine the relationship between self-efficacy and self-reported symptoms in adolescents may lead to the initiation of effective intervention programs capable of increasing levels of self-efficacy in adolescents. These interventions could lead to better outcomes for adolescents with sickle cell disease. Additional longitudinal investigations are needed to evaluate the ability of self-efficacy to predict adolescent adjustment over time.