Andrea Cherrington

Integrated primary care for patients with mental and physical multimorbidity: cluster randomised controlled trial of collaborative care for patients with depression comorbid with diabetes or cardiovascular disease

Objective To test the effectiveness of an integrated collaborative care model for people with depression and long term physical conditions. Design Cluster randomised controlled trial. Setting 36 general practices in the north west of England. Participants 387 patients with a record of diabetes or heart disease, or both, who had depressive symptoms (≥10 on patient health questionaire-9 (PHQ-9)) for at least two weeks. Mean age was 58.5 (SD 11.7). Participants reported a mean of 6.2 (SD 3.0) long term conditions other than diabetes or heart disease; 240 (62%) were men; 360 (90%) completed the trial. Interventions Collaborative care included patient preference for behavioural activation, cognitive restructuring, graded exposure, and/or lifestyle advice, management of drug treatment, and prevention of relapse. Up to eight sessions of psychological treatment were delivered by specially trained psychological wellbeing practitioners employed by Improving Access to Psychological Therapy services in the English National Health Service; integration of care was enhanced by two treatment sessions delivered jointly with the practice nurse. Usual care was standard clinical practice provided by general practitioners and practice nurses. Main outcome measures The primary outcome was reduction in symptoms of depression on the self reported symptom checklist-13 depression scale (SCL-D13) at four months after baseline assessment. Secondary outcomes included anxiety symptoms (generalised anxiety disorder 7), self management (health education impact questionnaire), disability (Sheehan disability scale), and global quality of life (WHOQOL-BREF). Results 19 general practices were randomised to collaborative care and 20 to usual care; three practices withdrew from the trial before patients were recruited. 191 patients were recruited from practices allocated to collaborative care, and 196 from practices allocated to usual care. After adjustment for baseline depression score, mean depressive scores were 0.23 SCL-D13 points lower (95% confidence interval −0.41 to −0.05) in the collaborative care arm, equal to an adjusted standardised effect size of 0.30. Patients in the intervention arm also reported being better self managers, rated their care as more patient centred, and were more satisfied with their care. There were no significant differences between groups in quality of life, disease specific quality of life, self efficacy, disability, and social support. Conclusions Collaborative care that incorporates brief low intensity psychological therapy delivered in partnership with practice nurses in primary care can reduce depression and improve self management of chronic disease in people with mental and physical multimorbidity. The size of the treatment effects were modest and were less than the prespecified effect but were achieved in a trial run in routine settings with a deprived population with high levels of mental and physical multimorbidity. Trial registration ISRCTN80309252.

Talking about depression: A qualitative study of barriers to managing depression in people with long term conditions in primary care

BackgroundThe risk of depression is increased in people with long term conditions (LTCs) and is associated with poorer patient outcomes for both the depressive illness and the LTC, but often remains undetected and poorly managed. The aim of this study was to identify and explore barriers to detecting and managing depression in primary care in people with two exemplar LTCs: diabetes and coronary heart disease (CHD).MethodsQualitative in-depth interviews were conducted with 19 healthcare professionals drawn predominately from primary care, along with 7 service users and 3 carers (n = 29). One focus group was then held with a set of 6 healthcare professionals and a set of 7 service users and 1 carer (n = 14). Interviews and the focus group were digitally recorded, transcribed verbatim, and analysed independently. The two data sets were then inspected for commonalities using a constant comparative method, leading to a final thematic framework used in this paper.ResultsBarriers to detecting and managing depression in people with LTCs in primary care exist: i) when practitioners in partnership with patients conceptualise depression as a common and understandable response to the losses associated with LTCs - depression in the presence of LTCs is normalised, militating against its recognition and treatment; ii) where highly performanced managed consultations under the terms of the Quality and Outcomes Framework encourage reductionist approaches to case-finding in people with CHD and diabetes, and iii) where there is uncertainty among practitioners about how to negotiate labels for depression in people with LTCs in ways that might facilitate shared understanding and future management.ConclusionDepression was often normalised in the presence of LTCs, obviating rather than facilitating further assessment and management. Furthermore, structural constraints imposed by the QOF encouraged reductionist approaches to case-finding for depression in consultations for CHD and diabetes. Future work might focus on how interventions that draw on the principles of the chronic care model, such as collaborative care, could support primary care practitioners to better recognise and manage depression in patients with LTCs.

Characteristics of Psychological Interventions That Improve Depression in People With Coronary Heart Disease: A Systematic Review and Meta-Regression

Objective Despite previous intervention trials, it is unclear which psychological treatments are most effective for people with coronary heart disease (CHD). We have conducted a systematic review with meta-regression to identify the characteristics of psychological interventions that improve depression and depressive symptoms among people with CHD. Methods Searches of multiple electronic databases up to March 2012 were conducted, supplemented by hand-searching of identified reviews and citation tracing of eligible studies. Studies were included if they reported a randomized controlled trial of a psychological intervention for people with CHD and included depression as an outcome. Data on main effects and characteristics of interventions were extracted from eligible studies. Standardized mean differences (SMDs) were calculated for each study and pooled using random-effects models. Random-effects multivariate meta-regression was performed to identify treatment characteristics associated with improvements in depression. Results Sixty-four independent treatment comparisons were identified. Psychological interventions improved depression, although the effect was small (SMD = 0.18, p < .001). Problem solving (SMD = 0.34), general education (SMD = 0.19), skills training (SMD = 0.25), cognitive-behavioral therapy (CBT; SMD = 0.23), and relaxation (SMD = 0.15) had small effects on CHD patients who were recruited irrespective of their depression status. Among high-quality trials of depressed CHD patients, only CBT showed significant but small effects (SMD = 0.31). When entered into multivariable analysis, no individual treatment component significantly improved depression. Conclusions CBT and problem solving should be considered for inclusion in future treatment developments and randomized controlled trials. However, the effects are small in magnitude, and there is room to develop new interventions that may be more effective.

Depression and health-related quality of life in people with coronary heart disease: a systematic review.

Background: Depression affects 20% of people with coronary heart disease (CHD) and predicts worse health-related quality of life (HRQoL), but in primary studies the strength of this reported relationship has been inconsistent. Aims and methods: We conducted a systematic review to investigate the extent to which depression independently predicts subsequent physical HRQoL. We searched electronic databases (MEDLINE, PsycINFO, CINAHL and EMBASE) to identify prospective cohort studies that included CHD patients, focused on depression and subsequent physical HRQoL using standardised measures. Included studies were assessed for methodological quality. Results: We identified 11 independent studies, of which nine showed a significant association between depression and subsequent physical HRQoL. There was no systematic methodological difference between those studies that did and did not show a significant association; in particular the results did not appear to be affected by the way depression or physical HRQoL was measured. Five of the 11 studies were of moderate to high methodological quality and controlled for both HRQoL and the severity of CHD at baseline. Four studies showed a significant association between depression and HRQoL. Conclusions: Depression predicts subsequent physical HRQoL and this association was not attributable to confounding effects of baseline HRQoL or the severity of the CHD. Identification of depressed CHD patients may improve targeting of resources at people at increased risk of worse physical HRQoL. Treating depression may improve subsequent physical HRQoL, though this needs to be established in future randomised controlled trials.

Collaborative Interventions for Circulation and Depression (COINCIDE): study protocol for a cluster randomized controlled trial of collaborative care for depression in people with diabetes and/or coronary heart disease

BackgroundDepression is up to two to three times as common in people with long-term conditions. It negatively affects medical management of disease and self-care behaviors, and leads to poorer quality of life and high costs in primary care. Screening and treatment of depression is increasingly prioritized, but despite initiatives to improve access and quality of care, depression remains under-detected and under-treated, especially in people with long-term conditions. Collaborative care is known to positively affect the process and outcome of care for people with depression and long-term conditions, but its effectiveness outside the USA is still relatively unknown. Furthermore, collaborative care has yet to be tested in settings that resemble more naturalistic settings that include patient choice and the usual care providers. The aim of this study was to test the effectiveness of a collaborative-care intervention, for people with depression and diabetes/coronary heart disease in National Health Service (NHS) primary care, in which low-intensity psychological treatment services are delivered by the usual care provider - Increasing Access to Psychological Therapies (IAPT) services. The study also aimed to evaluate the cost-effectiveness of the intervention over 6 months, and to assess qualitatively the extent to which collaborative care was implemented in the intervention general practices.MethodsThis is a cluster randomized controlled trial of 30 general practices allocated to either collaborative care or usual care. Fifteen patients per practice will be recruited after a screening exercise to detect patients with recognized depression (≥10 on the nine-symptom Patient Health Questionnaire; PHQ-9). Patients in the collaborative-care arm with recognized depression will be offered a choice of evidence-based low-intensity psychological treatments based on cognitive and behavioral approaches. Patients will be case managed by psychological well-being practitioners employed by IAPT in partnership with a practice nurse and/or general practitioner. The primary outcome will be change in depressive symptoms at 6 months on the 90-item Symptoms Checklist (SCL-90). Secondary outcomes include change in health status, self-care behaviors, and self-efficacy. A qualitative process evaluation will be undertaken with patients and health practitioners to gauge the extent to which the collaborative-care model is implemented, and to explore sustainability beyond the clinical trial.DiscussionCOINCIDE will assess whether collaborative care can improve patient-centered outcomes, and evaluate access to and quality of care of co-morbid depression of varying intensity in people with diabetes/coronary heart disease. Additionally, by working with usual care providers such as IAPT, and by identifying and evaluating interventions that are effective and appropriate for routine use in the NHS, the COINCIDE trial offers opportunities to address translational gaps between research and implementation.Trial Registration NumberISRCTN80309252Trial StatusOpen

Accessing primary health care: a meta-ethnography of the experiences of British South Asian patients with diabetes, coronary heart disease or a mental health problem

Objectives: To develop an explanatory framework of the problems accessing primary care health services experienced by British South Asian patients with a long-term condition or mental health problem. Methods: This study used meta-ethnographic methods. Published qualitative studies were identified from a structured search of six databases and themes synthesized across studies to develop a new explanatory framework. Results: Initial searches identified 951 potentially relevant records from which a total of 27 articles were identified that met inclusion and exclusion criteria. Twelve of these articles were chosen on the basis of their quality and relevance. These 12 articles described themes relating to the cultural, spatial and temporal dimensions of patient experiences of accessing and using health care. Our interpretive synthesis showed that access to primary care among British South Asians with diabetes, coronary heart disease and psychological health problems is co-constructed and negotiated over time and space along the key domains of the candidacy model of access: from help-seeking to interactions at the interface to following treatment advice. In the case of each condition, British South Asians’ claims to candidacy were constrained where their individual as well as broader social and cultural characteristics lacked fit with professionals’ ways of working and cultural typifications. Conclusion: Interventions that positively affect professionals’ capacity to support patient claims to candidacy are likely to help support British South Asians overcome a broad range of barriers to care for physical and mental health problems.

Do cognitive and behavioral factors mediate the impact of depression on medical outcomes in people with coronary heart disease

PURPOSE Depression is common in people with coronary heart disease (CHD) and predicts worse cardiac outcomes. Cognitive and behavioral mechanisms have been proposed to explain this association, although the mediating role of these mechanisms remains unclear. We conducted a prospective cohort study to investigate whether the impact of depression on subsequent impaired health-related quality of life (HRQoL) was mediated by cognitive and behavioral pathways. METHODS Demographic and medical characteristics, depression (Hospital Anxiety and Depression Scale), illness cognitions (Brief Illness Perceptions Questionnaire and Cardiac Anxiety Questionnaire), awareness of somatic symptoms (Symptom Checklist-90, revised version), and health behaviors were recorded from 255 primary care patients with CHD. The Short Form-36 was completed by 201 participants 6 months later. RESULTS Twenty-five participants (9.8%) were depressed at baseline. Short Form-36 Physical Component Score (PCS) was significantly lower in participants who were depressed (mean PCS score = 29.8 versus 38.0, P = .001). After controlling for demographic and medical variables, depression continued to be associated with subsequent PCS [B = -0.84 (0.20), P < .0005]. When cardiac anxiety, awareness of somatic symptoms, and negative illness perceptions were added to the regression model, depression no longer continued to make a significant independent contribution to the model [B = -0.3 (0.2), P = .16]. Maladaptive health behaviors did not fulfill criteria to mediate the relationship between depression and impaired health-related quality of life. CONCLUSIONS Findings indicate that the impact of depression on HRQoL could be mediated by cardiac anxiety, awareness of somatic symptoms, and negative illness perceptions, but not maladaptive health behaviors. Psychological interventions targeting these mediators have potential to improve HRQoL in people with CHD.

Update on the collaborative interventions for circulation and depression (COINCIDE) trial: changes to planned methodology of a cluster randomized controlled trial of collaborative care for depression in people with diabetes and/or coronary heart disease

BackgroundThe COINCIDE trial aims to evaluate the effectiveness and cost-effectiveness of a collaborative care intervention for depression in people with diabetes and/or coronary heart disease attending English general practices.DesignThis update details changes to the cluster and patient recruitment strategy for the COINCIDE study. The original protocol was published in Trials (http://www.trialsjournal.com/content/pdf/1745-6215-13-139.pdf). Modifications were made to the recruitment targets in response to lower-than-expected patient recruitment at the first ten general practices recruited into the study. In order to boost patient numbers and retain statistical power, the number of general practices recruited was increased from 30 to 36. Follow-up period was shortened from 6 months to 4 months to ensure that patients recruited to the trial could be followed up by the end of the study.ResultsPatient recruitment began on the 01/05/2012 and is planned to be completed by the 30/04/2013. Recruitment for general practices was completed on 31/10/2012, by which time the target of 36 practices had been recruited. The main trial results will be published in a peer-reviewed journal.ConclusionThe data from the trial will provide evidence on the effectiveness and cost-effectiveness of collaborative care for depression in people with diabetes and/or coronary heart disease.Trial registrationTrial registration number: ISRCTN80309252