Association between illness perception and health-related quality of life in patients with preexisting premature coronary artery disease

Self-care behaviours and their determinants in people affected by coronary heart disease

OBJECTIVE

To describe self-care in Italian adults with coronary heart disease and to identify sociodemographic and clinical determinants of self-care.

DESIGN

This is a cross-sectional analysis of data from the Italian multicentre longitudinal study.

METHODS

We used the follow instruments: Self-Care of coronary heart disease inventory, Self-care Self Efficacy Scale, Charlson Comorbidity Index and Sociodemographic questionnaire. Descriptive statistics including absolute numbers, percentages, means and standard deviations were used to describe the sociodemographic and clinical characteristics of the sample, and the items. A structural equation model was fitted to understand sociodemographic and clinical variables associated with self-care, and possible effects mediated by self-efficacy.

RESULTS

We enrolled 427 patients. Self-care maintenance, monitoring, management and self-care self-efficacy means scores were 58.27 (SD = 20.07), 48.53 (SD = 26.97), 65.34 (SD = 22.85) and 77.16 (SD = 20.76), respectively. Except for the self-care self-efficacy scale, all the scores lay below the cut off 70 for adequacy. Older age, higher comorbidities, a higher number of stents placed, and the presence of a caregiver predicted poor self-care.

CONCLUSION

Self-care in Italian CHD populations is poor. Several associations were found between the dimensions of self-care and sociodemographic factors. Implications for the profession these findings are important for health care providers to plan interventions to improve self-care behaviour.

IMPACT

The study addressed self-care behaviours of coronary heart disease patients. Self-care was poor in this population; several associations were found between the dimensions of self-care and sociodemographic and clinical determinants. Our results can be used to support health professionals in planning interventions to improve specific self-care domains.

REPORTING METHOD

STROBE checklist was followed.

Analysis of the characteristics and illness comprehension bias among Chinese patients with psycho-cardiovascular disease: a multi-centre cross-sectional survey

Background

Psychological distress, such as depression and anxiety, impacts cardiovascular disease (CVD) prognosis and management. Illness comprehension is essential for effective treatment, but biases can lead to suboptimal outcomes. We explored psycho-cardiovascular disease (PCD) patient characteristics, with a specific focus on comprehension biases and treatment choices from patients' perspectives in China, to improve management strategies.

Methods

We enrolled 864 PCD patients in Chinese hospitals across 11 provinces. Tools included the seven-item General Anxiety Disorder scale, the nine-item Patient Health Questionnaire, and a self-designed PCD illness comprehensibility survey. We used χ2 test, univariate, and multivariate logistic regression to examine patient characteristics.

Results

Of 834 enrolled PCD patients, over 90% experienced mild to moderate anxiety and depression, yet less than 10% received treatment. 52.90% of patients had high illness comprehension. Among the high comprehension group, there were fewer labourers (19.30% vs. 26.40%; P < 0.05), fewer older individuals (39.20% vs. 46.90%; P < 0.05), and those with lower household income (15.60% vs. 30.50%; P < 0.05). A greater proportion of those in the high comprehension group lacked insurance (17.50% vs. 10.00%; P < 0.05), and they were more highly educated (42.90% vs. 32.10% with a college education). Additionally, more patients in the high comprehension group frequently received psychological consultation (24.00% vs. 5.10%; P < 0.05) and therapy (7.70% vs. 2.30%; P < 0.05). These patient groups preferred tertiary hospitals (71.66% vs. 63.33%; P < 0.05) and psycho-cardiovascular clinics (40.14% vs. 25.90%; P < 0.05). In comparison, low comprehension patients prioritised cost (32.65% vs. 46.41%; P < 0.05) and favoured a transition to community hospitals (16.55% vs. 25.38%; P < 0.05).

Conclusions

More than 90% of PCD patients in Chinese CVD departments experience mild to moderate anxiety and depression with low treatment rates. Different illness comprehension levels are associated with variations in treatment willingness, considerations, health care preferences, medication choices, and illness knowledge acquisition methods.

The effect of illness perception on psychosocial adjustment of patients with breast cancer and their spouses: actor-partner independence model

OBJECTIVE

With the increase in the prevalence rate and improvements in the survival of breast cancer patients, there is a growing interest in understanding the level of psychosocial adjustment in these patients. The study aimed to describe the illness perception and psychosocial adjustment levels of both breast cancer patients and their spouses, to use the Actor-Partner Interdependence Model (APIM) to clarify the actor-partner relationships between spouses, and to explore the impact of illness perception on psychosocial adjustment to the disease within the joint actions of both spouses.

METHODS

A total of 216 female patients with breast cancer and their spouses participated in the study. They were selected from two tertiary hospitals in Guangdong Province, China from October 2022 to May 2023 using a convenience sampling method. The participants were assessed using the Brief Illness Perception Questionnaire and the Psychosocial Adjustment to Illness Scale to examine the relationship between illness perception and psychosocial adjustment. AMOS24.0 was used to test and analyze the actor-partner interdependence model.

RESULTS

The illness perception score (57.75 ± 10.91) was slightly higher than that of the spouse (57.10 ± 11.00), and the psychosocial adjustment score (64.67 ± 6.33) was slightly lower than that of the spouse (64.76 ± 7.49). The results of the actor-partner interdependence model indicated that there was a couple partner between breast cancer patients and their spouses: the spouse's illness perception significantly affected the patient's psychosocial adjustment (β = 0.095, p = 0.015); the patient's illness perception also significantly affected the spouse's psychosocial adjustment (β = 0.106, p = 0.033). Among them, the patient's psychosocial adjustment was found to be related to the patient's illness comprehensibility or coherence of illness (β = 0.433, p = 0.009), the spouse's emotional illness representation (β = 0.218, p = 0.037), and the spouse's illness comprehensibility or coherence of illness (β = 0.416, p = 0.007), while the spouse's psychosocial adjustment was only related to the spouse's illness comprehensibility or coherence of illness (β = 0.528, p = 0.007).

CONCLUSIONS

The psychosocial adjustment of breast cancer patients is affected by both their own and spouse's illness perception. Therefore, in the future, the healthcare staff can implement early psychological interventions for patients diagnosed with breast cancer and their spouses as a unit to promote the psychosocial adjustment of them.

The significance of PCSK-9's level and polymorphism in premature coronary artery disease: Relation to risk and severity

BACKGROUND

Proprotein convertase subtilisin/kexin type 9 (PCSK-9) is a circulating protein that plays an important role in lipid metabolism and is linked to inflammation, which has implications for atherosclerosis and its severe cardiac effects. We studied the potential association of the PCSK-9 gene single nucleotide polymorphism (SNP), Oxidized low-density lipoprotein receptor 1- (OLR-1), and caspase-3 serum levels with the risk and severity of premature coronary artery disease (PCAD). The potential contribution of PCSK-9 serum level to the severity of PCAD patients was also assessed.

METHOD

This case-control study included 120 PCAD patients (age < 45), and 60 age matched healthy controls. Serum PCSK-9 and caspase-3 levels and clinical characteristics were recorded. SYNTAX score was calculated to estimate the severity of the coronary artery lesions. The SNP rs2483205 of the PCSK-9 gene and the rs11053646 of the OLR-1gene were genotyped in all participants.

RESULTS

Serum PCSK-9 levels were higher in PCAD patients and were significantly different among the three SYNTAX score groups (SS ≤ 12, 12 < SS ≤ 21.5, and SS > 21.5). The diagnostic cutoff values of PCSK-9 and caspase-3 levels for PCAD were > 3.2 ng/mL for both, yielding an area under the curve (AUC) of 0.98 and 0.92, sensitivity of 85 %, 98 %, and specificity of 99.5 %, 93 % for PCSK-9 and caspase-3, respectively. The genotypes TT + CT vs. CC of PCSK-9's rs2483205 SNP presented a higher risk for PCAD and higher SYNTAX scores. Furthermore, the rs11053646 SNP of OLR-1 presented the CG genotype as more risky and having higher SYNTAX scores.

CONCLUSION

Circulating PCSK9 and caspase-3 concentrations were higher in PCAD patients and were associated with CAD severity. The SNPs of PCSK-9 (rs2483205) and OLR-1 (rs11053646) were associated with PCAD and its severity.

Psychosocial factors associated with health-related quality of life in patients with chronic disease: Results of a cross-sectional survey

OBJECTIVE

The impact of various psychosocial factors (sense of coherence, illness perception, patient enablement, self-efficacy, health literacy, personality) is not fully understood across a wide range of chronic diseases, and in particular in patients with multimorbidity. As such, this study assessed the key psychosocial factors associated with impaired health-related quality of life (HRQoL) in patients with one or more chronic diseases based on cross-sectional data collected in Flanders (Belgium).

METHODS

Cross-sectional data on 544 chronically ill patients were analysed. Multiple linear regression models were built to analyze the key psychosocial factors associated with HRQoL (EQ-5D-5Lindex as dependent factor).

RESULTS

Overall, the strongest independently associated factor with HRQoL was illness perceptions (β = -0.52, P < 0.001). In addition, sense of coherence (β = 0.14, P = < 0.05) was independently positively associated with HRQoL. Moreover, after stratification for multimorbidity, the negative association of illness perceptions with HRQoL was stronger when multimorbidity is present compared to when it is absent (β = -0.62, P < 0.001 vs β = -0.38, P < 0.001).

CONCLUSIONS

This study revealed interesting associations of the modifiable psychosocial factors of illness perceptions and sense of coherence with HRQoL in a population of chronically ill persons. Given that the burden of chronic diseases will rise in the next decades, designing and implementing interventions that enhance these psychosocial abilities of patients, especially illness perceptions in multimorbid patients, is needed in order to reduce the burden of chronic diseases in terms of impaired HRQoL.

Association between cognitive representation of illness and the outcome of patients with premature coronary artery disease

OBJECTIVE

To assess whether illness perception (IP) in overall and each of its three dimensions (cognitive, emotional and comprehension) have an independent prognostic value in men and women with premature coronary artery disease (CAD).

METHODS

In a prospective cohort, 778 patients (370 men and 408 women) with premature CAD(diagnosed in men aged<45 y and women aged<55 y), who had completed brief illness perception questionnaire were followed up for 4 years. Outcome event was defined as composite of all-cause mortality, nonfatal myocardial infarction(MI), repeated revascularization or/and stroke. Analysis was performed for men and women separately. High scores for each item of illness perception indicate positive perception.

RESULTS

Among men, 90 patients (24.3%) experienced events: 14(3.8%) death, 23(6.2%) nonfatal MI, 9(2.4%) strokes, and 44(11.9%) revascularization. Men with and without event showed no difference regarding the traditional risk factors, depression and anxiety symptoms. Among women, 72(17.6%) had events: 11(2.7%) death, 23(5.6%) nonfatal MI, 7(1.7%) strokes and 31(7.6%) revascularization; who had a lower education, more severe CAD, and more depressive symptoms. After adjustments for potential confounders, overall IP and only its cognitive dimension were significantly associated with the outcome in women:1-score increase in the women's cognitive perception resulted in an 18% decrease in the event (HR = 0.82, 95% CI:0.72 to 0.95; P = 0.007). In the men, this effect remained nonsignificant either for IP or its dimensions.

CONCLUSIONS

Positive cognitive representation of illness was predictive of a decreased likelihood of mortality and/or cardiovascular events in women with premature CAD. Interventional studies are needed to confirm the results.

Illness perception and cardiovascular risk factors in patients with myocardial infarction undergoing percutaneous coronary intervention in Iran

Background

Knowing of perception of the illness, and cardiovascular risk factors in patients with myocardial infarction is crucial in engaging in effective secondary prevention. This study aimed to examine illness perception and cardiovascular risk factors in patients with myocardial infarction undergoing percutaneous coronary intervention.

Methods

The participants comprised 131 patients undergoing a first-time percutaneous coronary intervention at a metropolitan, tertiary referral hospital in Tabriz, Iran. The convenience sampling method was employed to select the research sample within a six-month period. The instruments used were as follows: (1) Demographic and health information form, (2) The Brief Illness Perception Questionnaire (3) The Health Risk Assessment framework developed by the Centers for Disease Control and Prevention. The design of the study was descriptive, cross sectional. The continuous variables were analyzed using Independent t-test and analysis of variance (ANOVA); and categorical variables were compared using the chi-square test.

Results

Most participants had a positive family history of cardiovascular disease (54.2%), with 66.4% of participants having at least one cardiovascular risk factor such as diabetes (36.6%) hypertension (32.8%) and dyslipidemia (16%). Most participants were physically inactive (78.6%), about 48.9% were overweight, 34.4% suffered from obesity and 26% were smokers. Illness perception in this study was seen to be high (6.21), with highest scores occurring in the illness control dimension (6.83) and lowest scores occurring in the understanding dimension (3.77). There was a significant relationship between illness perception and physical activity, nutrition, sleep and general health. Direct significant relationships between biometric values (cholesterol, glucose, blood pressure); psychological factors (depression, anxiety and stress) and illness perception were also found to exist.

Conclusions

Low scores in two dimensions of illness perception may lead to psychological consequences such as stress, anxiety, and depression. The relationship between illness perception and some risk factors of cardiovascular disease such as physical activity, diet and biometric values, reveal the need for more attention to patient education and counselling.

Vision-related quality of life in patients with glaucoma: the role of illness perceptions

Purpose

To explore the predictive effects of illness perceptions on vision-related quality of life (VRQoL) in Chinese glaucoma patients.

Methods

In this cross-sectional study, 97 patients with glaucoma completed the brief illness perception questionnaire (BIPQ), the glaucoma quality of life-15 (GQL-15) questionnaire, and a questionnaire regarding sociodemographic and clinical information. A correlation analysis and hierarchical linear regression analysis were performed.

Results

The BIPQ total score was positively correlated with the total score of the GQL-15 questionnaire and the scores of its four dimensions. Chronic comorbidities, the type of glaucoma, the best-corrected visual acuity (BCVA), the mean defect (MD) of visual field in the better eye, and identity in the BIPQ were critical predictors of VRQoL. Illness perceptions independently accounted for 7.8% of the variance in the VRQoL of glaucoma patients.

Conclusions

Patients with stronger illness perceptions and those who perceive themselves as having more glaucoma symptoms are likely to experience worse VRQoL. Illness perceptions in glaucoma patients deserve clinical attention, and further studies are needed to examine whether cognitive interventions targeting illness perceptions can improve VRQoL.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12955-022-01979-x.

Cognitive illness representations among Israeli Arabs diagnosed with depression and their relationship with health-related quality of life

BACKGROUND

The number of studies that have assessed cognitive illness representations among people diagnosed with depression, and their relationship to health outcomes, has clearly grown. Nevertheless, the relationship between cognitive illness representations and health-related quality of life (HRQoL) has received very little research attention.

AIMS

This study examined cognitive illness representations, based on the self-regulation model (SRM), and the contribution of each dimension of these cognitive illness representations to health-related quality of life (HRQoL) among Israeli Arabs diagnosed with depression.

METHODS

A convenience sample of 160 Israeli Arabs with depression completed measures of cognitive illness representations (identity, timeline, consequences, personal control, treatment control, and coherence), HRQoL, and sociodemographic and health characteristics.

RESULTS

Participants reported high levels of negative perceptions in the identity, timeline, and consequences dimensions, and moderate levels in the dimensions of personal control, treatment control, and coherence. Also, participants reported low levels of HRQoL. Identity, consequences, and coherence were found to be the main determinants of HRQoL.

CONCLUSION

This study underlines the crucial role of the identity, consequences, and coherence dimensions in the HRQoL of individuals diagnosed with depression. The findings indicate that clinical interventions targeting cognitive illness representations of individuals with depression, and in particular identity, consequences, and coherence, might be helpful in improving the HRQoL of this population.

Psychological well-being in people with multiple sclerosis and its association with illness perception and self-esteem

BACKGROUND

Illness perception and self-esteem were found to improve adjustment to disease in many chronic conditions. However, so far, little is known about the role of illness-appraisal and self-appraisal factors in psychological well-being in people with multiple sclerosis (MS). Thus, we aimed to assess the association between illness perception, self-esteem and psychological well-being in people with MS while controlling for sociodemographic variables, clinical variables, and sleep-related problems.

METHODS

The General Health Questionnaire-28, the Brief Illness Perception Questionnaire, the Rosenberg Scale of Self-esteem, the Expanded Disability Status Scale, the Pittsburgh Sleep Quality Index, and the Multidimensional Fatigue Inventory were used. Multiple linear regressions and mediation analyses were utilized to analyse the data.

RESULTS

Positive illness perception (p<0.001) and self-esteem (p<0.05) were significantly associated with psychological well-being in MS. Low income (p<0.05) and sleep-related problems (p<0.001) were significantly associated with lower level of psychological well-being in people with MS. Positive illness perception and self-esteem were able to diminish the association between low income (p>0.05), poor sleep quality (p<0.01), fatigue (p>0.05), and low level of psychological well-being. Self-esteem also mediated the association between illness perception and psychological well-being.

DISCUSSION

People with MS may benefit from psychological support aimed at promoting self-esteem and diminishing negative illness perception.

Illness perceptions of Israeli hospitalized patients with acute coronary syndrome

BACKGROUND

Illness perceptions (IPs) can affect cardiac health behaviours and outcomes.

AIMS AND OBJECTIVES

To investigate IPs among patients hospitalized with acute coronary syndrome (ACS).

DESIGN

Longitudinal survey.

METHODS

The ACS Israel Study is a national, biennial registry, enrolling all patients with ACS admitted to cardiac intensive care or cardiology wards in Israel within a 2-month period. Data includes demographics, medical history, and treatment for ACS using an electronic database. In 2018, a nursing component was added, including the Brief Illness Perception Questionnaire. Data were analysed using descriptive statistics and a two-stage cluster analysis.

RESULTS

A total of 990 subjects were surveyed. Mean age was 62.8 (SD = 12.5) and most respondents were male and married. Mean IP scores ranged from 3.28 to 6.06. Three clusters were found; one only of women and two only of men (one cluster with lower IPs and little previous medical history and cardiac risk factors and the second with higher IPs, greater medical history, and cardiac risk factors. Those with higher education scored lower on several IPs.

CONCLUSIONS

Subjects were moderately cognitively and emotionally impacted by their illness. Men tended to perceive their illness as having either a relatively strong or a relatively weak emotional and cognitive impact on their lives, where women were somewhere in-between. Participants with an academic education perceived less of an impact of the illness while those with a previous history of chronic disease reported the opposite. It is recommended that educational interventions and in-depth qualitative studies be designed that investigate the development of IPs during hospitalization to potentially improve cardiac health behaviours, especially among those without a previous medical history and cardiac risk factors.

RELEVANCE TO CLINICAL PRACTICE

Those without a history of chronic disease or a lower level of education are less likely to absorb the full impact of a cardiac event while hospitalized and should, therefore, be monitored more closely and coached with greater intensity than other groups while still in-hospital.

Psycho-Social Factors in Patients with Cardiovascular Disease Attending a Family-Centred Prevention and Rehabilitation Programme: EUROACTION Model in Spain

BACKGROUND

Coronary heart disease (CHD) persists as the leading cause of death worldwide. Cardiovascular prevention and rehabilitation (CVPR) has an interdisciplinary focus, and includes not only in physiological components, but it also addresses psycho-social factors.

METHODS

The study analysed the Spanish psycho-social data collected during the EUROACTION study. In Spain, two hospitals were randomised in the Valencia community. Coronary patients were prospectively and consecutively identified in both hospitals. The intervention hospital carried out a 16-week CVPR programme, which aimed to assess illness perceptions and establish healthy behaviours in patients and their partners.

RESULTS

Illness perceptions were significantly and inversely associated with anxiety and depression. Low levels of anxiety were associated with better self-management of total cholesterol (p = 0.004) and low-density lipoprotein-cholesterol (p = 0.004). There was concordance at one year among patients and partners who participated in the programme related to anxiety (p < 0.001), fruit consumption (p < 0.001), and vegetable consumption (p < 0.001).

CONCLUSIONS

The EUROACTION study emphasised the importance of assessing psycho-social factors in a CVPR programme and the inclusion of family as support in patients' changes in behaviour.

Changes in illness perception among patients' undergoing percutaneous coronary intervention

BACKGROUND

Little is known about changes in illness perception (IP) among patients treated with percutaneous coronary intervention (PCI).

OBJECTIVES

To examine changes in IP among patients undergoing PCI and examine the effects of demographics and clinical details on IP.

METHODS

A descriptive repeated measures design was used. IP was evaluated at pre discharge time and six months' later.

RESULTS

Six months' post PCI, patients perceived their illness as chronic, had more control over their condition, and better understanding of it. They experienced less symptoms, lower perceptions of consequences on their life and less emotional representation indicating positive changes. Receiving health education at follow-up time had a significant interaction effects on increased personal and treatment control. Having a family history of coronary heart disease associated with better understanding of illness.

CONCLUSION

Assessing patient' IP and providing health education at follow-up time should be incorporated in optimizing the care of PCI patients.

Health-related quality of life among Israeli Arabs diagnosed with depression: the role of illness representations, self-stigma, self-esteem, and age

BACKGROUND

Studies that examined health-related quality of life (HRQoL) and related factors among people diagnosed with depression, have only focused on sociodemographic and clinical factors. This study examined the contribution of illness representations (IRs), self-stigma, self-esteem, and age group (younger adults aged 18 to 64 and older adults aged 65+) to HRQoL among Israeli Arabs diagnosed with depression.

METHODS

A convenience sample of 160 Israeli Arabs with depression completed measures of cognitive and emotional IRs, self-stigma, self-esteem, HRQoL, and sociodemographic and health characteristics.

RESULTS

Participants reported low levels of HRQoL, with the older adults reporting significantly lower levels of HRQoL in comparison to those reported by the younger adults. Low levels of HRQoL were significantly associated with negative cognitive and emotional IRs, high levels of self-stigma, and low levels of self-esteem. Cognitive IRs, self-stigma, self-esteem, and age group were found to be the main determinants of HRQoL.

LIMITATIONS

Limitations of the study include use of a cross-sectional design among culturally homogeneous sample. This limits the generalizability of our results and conclusions, and prevented us from determining causal relationships.

CONCLUSIONS

This study emphasizes the role of cognitive IRs, self-stigma, and self-esteem, as well as age, in the HRQoL of individuals diagnosed with depression. Intervention programs should be mindful of these determinants in order to improve the HRQoL of individuals diagnosed with depression.

Longitudinal evaluation of the effects of illness perceptions and beliefs about cardiac rehabilitation on quality of life of patients with coronary artery disease and their caregivers

BACKGROUND

Patients' negative illness perceptions and beliefs about cardiac rehabilitation (CR) can influence uptake and adherence to CR. Little is known about the interpartner influence of these antecedent variables on quality of life of patients with coronary artery disease (CAD) and their family caregivers. The aims of the study were: 1) to assess differences in illness perceptions, beliefs about CR and quality of life between patients with CAD and their family caregivers upon entry to a CR programme and at 6 months follow-up; and 2) to examine whether patients' and caregivers' perceptions of the patient's illness and beliefs about CR at baseline predict their own and their partner's quality of life at 6 months.

METHODS

In this longitudinal study of 40 patient-caregiver dyads from one CR service, patients completed the Brief Illness Perception Questionnaire and Beliefs about Cardiac Rehabilitation Questionnaire at baseline and 6 months; and caregivers completed these questionnaires based on their views about the patient's illness and CR. The Short-Form 12 Health Survey was used to assess patients' and caregivers' perceived health status. Dyadic data were analysed using the Actor-Partner Interdependence Model.

RESULTS

Most patients (70%) were men, mean age 62.45 years; and most caregivers (70%) were women, mean age 59.55 years. Caregivers were more concerned about the patient's illness than the patients themselves; although they had similar scores for beliefs about CR. Patients had poorer physical health than caregivers, but their level of mental health was similar. Caregivers' poorer mental health at 6 months was predicted by the patient's perceptions of timeline and illness concern (i.e. partner effects). Patient's and caregiver's illness perceptions and beliefs about CR were associated with their own physical and mental health at 6 months (i.e. actor effects).

CONCLUSIONS

Overall, the patients and caregivers had similar scores for illness perceptions and beliefs about CR. The actor and partner effect results indicate a need to focus on specific illness perceptions and beliefs about CR, targeting both the individual and the dyad, early in the rehabilitation process to help improve patients and caregivers physical and mental health (outcomes).

Longitudinal study of the relationship between patients' medication adherence and quality of life outcomes and illness perceptions and beliefs about cardiac rehabilitation

Background

Adherence to medication regimens is essential for preventing and reducing adverse outcomes among patients with coronary artery disease (CAD). Greater understanding of the relation between negative illness perceptions, beliefs about cardiac rehabilitation (CR) and medication adherence may help inform future approaches to improving medication adherence and quality of life (QoL) outcomes. The aims of the study are: 1) to compare changes in illness perceptions, beliefs about CR, medication adherence and QoL on entry to a CR programme and 6 months later; 2) to examine associations between patients’ illness perceptions and beliefs about CR at baseline and medication adherence and QoL at 6 months.

Methods

A longitudinal study of 40 patients with CAD recruited from one CR service in Scotland. Patients completed the Medication Adherence Report Scale, Brief Illness Perception Questionnaire, Beliefs about CR questionnaire and the Short-Form 12 Health Survey. Data were analysed using the Wilcoxon Signed Ranks test, Pearson Product Moment correlation and Bayesian multiple logistic regression.

Results

Most patients were men (70%), aged 62.3 mean (SD 7.84) years. Small improvements in ‘perceived suitability’ of CR at baseline increased the odds of being fully adherent to medication by approximately 60% at 6 months. Being fully adherent at baseline increased the odds of staying so at 6 months by 13.5 times. ‘Perceived necessity, concerns for exercise and practical barriers’ were negatively associated with reductions in the probability of full medication adherence of 50, 10, and 50%. Small increases in concerns about exercise decreased the odds of better physical health at 6 months by about 50%; and increases in practical barriers decreased the odds of better physical health by about 60%. Patients perceived fewer consequences of their cardiac disease at 6 months.

Conclusions

Patients’ beliefs on entry to a CR programme are especially important to medication adherence at 6 months. Negative beliefs about CR should be identified early in CR to counteract any negative effects on QoL. Interventions to improve medication adherence and QoL outcomes should focus on improving patients’ negative beliefs about CR and increasing understanding of the role of medication adherence in preventing a future cardiac event.