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Psychosocial stress and major cardiovascular events in patients with stable coronary heart disease
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, UCR-Uppsala Clinical Research Center. Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Cardiology.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Women's and Children's Health, Research group (Dept. of women´s and children´s health), Clinical Psychology in Healthcare.
Duke Clinical Research Institute, Duke University Medical Center, Durham, NC, USA..
University of Alberta, Edmonton, Canada..
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2018 (English)In: Journal of Internal Medicine, ISSN 0954-6820, E-ISSN 1365-2796, Vol. 283, no 1, p. 83-92Article in journal (Refereed) Published
Abstract [en]

OBJECTIVES: Assess the risk of ischaemic events associated with psychosocial stress in patients with stable coronary heart disease (CHD).

METHODS: Psychosocial stress was assessed by a questionnaire in 14 577 patients (median age 65.0, IQR 59, 71; 81.6% males) with stable CHD on optimal secondary preventive therapy in the prospective randomized STABILITY clinical trial. Adjusted Cox regression models were used to assess associations between individual stressors, baseline cardiovascular risk factors and outcomes.

RESULTS: After 3.7 years of follow-up, depressive symptoms, loss of interest and financial stress were associated with increased risk (hazard ratio, 95% confidence interval) of CV death (1.21, 1.09-1.34; 1.15, 1.05-1.27; and 1.19, 1.08-1.30, respectively) and the primary composite end-point of CV death, nonfatal MI or nonfatal stroke (1.21, 1.13-1.30; 1.19, 1.11-1.27; and 1.17, 1.10-1.24, respectively). Living alone was related to higher risk of CV death (1.68, 1.38-2.05) and the primary composite end-point (1.28, 1.11-1.48), whereas being married as compared with being widowed, was associated with lower risk of CV death (0.64, 0.49-0.82) and the primary composite end-point (0.81, 0.67-0.97).

CONCLUSIONS: Psychosocial stress, such as depressive symptoms, loss of interest, living alone and financial stress, were associated with increased CV mortality in patients with stable CHD despite optimal medical secondary prevention treatment. Secondary prevention of CHD should therefore focus also on psychosocial issues both in clinical management and in future clinical trials.

Place, publisher, year, edition, pages
2018. Vol. 283, no 1, p. 83-92
Keyword [en]
death, depression, psychosocial stress, stable coronary heart disease
National Category
Cardiac and Cardiovascular Systems Psychology
Identifiers
URN: urn:nbn:se:uu:diva-333087DOI: 10.1111/joim.12692ISI: 000418411100006PubMedID: 28960596OAI: oai:DiVA.org:uu-333087DiVA, id: diva2:1155033
Funder
GlaxoSmithKline (GSK)
Available from: 2017-11-06 Created: 2017-11-06 Last updated: 2018-01-29Bibliographically approved
In thesis
1. Psychological distress in coronary heart disease: Risk indicators, treatment and cardiovascular prognosis
Open this publication in new window or tab >>Psychological distress in coronary heart disease: Risk indicators, treatment and cardiovascular prognosis
2018 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The aims of this thesis were to: (1) explore factors associated with emotional distress; (2) investigate psychosocial stress as a risk factor for cardiovascular (CV) morbidity in patients with coronary heart disease (CHD); (3) investigate the impact of group-based stress management on psychological outcomes, and if that mediates risk of CV events; and (4) evaluate an internet-based cognitive behavioral therapy (iCBT) for emotional distress in patients with a recent myocardial infarction (MI).

In Study I, data from the national registry SWEDEHEART on 27,267 MI patients < 75 years was used. Study II was a prospective longitudinal study with 14,577 patients with stable CHD. Psychosocial stress was assessed with a questionnaire and patients were followed-up for clinical events on average 3.7 years. In Study III, a group-based stress management was evaluated in a randomized controlled trial of 362 CHD patients. Psychological outcomes (stress, somatic anxiety, depression and vital exhaustion) were assessed at five time-points over two years. Joint modelling for longitudinal and time-to-event data was used to analyze if reduction in the psychological outcomes mediated the positive effect the treatment had on later CV events. Study IV describes Study V and includes a pilot study investigating the acceptability of the intervention used. In Study V 239 MI patients were recruited to evaluate iCBT versus usual care in a randomized clinical trial.

In summary, in Study I, sociodemographic factors, previous psychiatric diagnosis and readmission for CV events were associated with incident and persistent emotional distress post-MI. In Study II, after multivariable adjustments, depressive symptoms, financial stress and living alone were all independently associated with CV death or the composite of CV death, non-fatal MI or non-fatal stroke. These results emphasize the importance of targeting psychosocial factors in order to optimize secondary prevention. In Study III, somatic anxiety was the only targeted psychological outcome affected positively by stress management, and may have in turn reduced subsequent CV events. Other mediating factors remain to be identified. Study IV indicated the intervention used in Study V was acceptable. Study V concluded that iCBT was not superior to usual care for emotional distress in post-MI patients and treatment adherence was unexpectedly low. Potential reasons for the low adherence require further exploration.

Place, publisher, year, edition, pages
Uppsala: Acta Universitatis Upsaliensis, 2018. p. 75
Series
Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Medicine, ISSN 1651-6206 ; 1412
Keyword
psychological distress, myocardial infarction, coronary heart disease, depression, anxiety, stress, cognitive behavioral therapy, iCBT, stress management, cardiac rehabilitation
National Category
Cardiac and Cardiovascular Systems Psychology
Research subject
Psychology
Identifiers
urn:nbn:se:uu:diva-336234 (URN)978-91-513-0192-1 (ISBN)
Public defence
2018-02-14, Sal IV, Gamla universitetshuset, Biskopsgatan 3, Uppsala, 13:15 (Swedish)
Opponent
Supervisors
Funder
Swedish Research Council, 2009–1093
Available from: 2018-01-24 Created: 2017-12-13 Last updated: 2018-03-07

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Hagström, EmilNorlund, FredrikaWallentin, LarsHeld, Claes

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