Abstract
Purpose
The aim of this study was to determine whether sense of coherence (SOC) at baseline predicts health-related quality of life (HRQoL) at 12–28-month follow-up among patients with coronary heart disease when controlled for sociodemographic and medical variables.
Methods
A total of 179 consecutive patients (58.28 ± 6.52 years, 16.8% women) scheduled for coronary angiography (CAG) were interviewed before CAG and 12–28 months after. SOC was measured with the 13-item Orientation to Life Questionnaire. HRQoL was measured using the Short Form Health Survey 36 (SF-36), from which the mental and physical component summaries (MCS, PCS) were calculated. The relationship between SOC and HRQoL was examined using regression analyses.
Results
SOC proved to be a significant predictor of the MCS-score (B = 0.29; 95% CI = 0.17–0.41) and PCS-score (B = 0.18; 95% CI = 0.06–0.31) when not adjusted for possible confounding sociodemographic and medical variables. After adjustment for sociodemographic and medical variables, SOC remained a predictor of the MCS-score (B = 0.26; 95% CI = 0.14–0.39). SOC also remained a predictor of the PCS-score when controlled for gender, age and family income; however, the association disappeared after adjustment for functional status (B = 0.07; 95% CI = −0.05 to 0.19).
Conclusions
SOC is a predictor of mental and physical HRQoL at 12–28-month follow-up, crude and also after adjustment. Patients undergoing CAG with low SOC thus deserve particular attention in regard to the maintenance and improvement of their HRQoL.
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Abbreviations
- HRQoL:
-
Health-related quality of life
- CHD:
-
Coronary heart disease
- SF-36:
-
Short form health survey questionnaire
- SOC:
-
Sense of coherence
- CAG:
-
Coronary angiography
- PCI:
-
Percutaneous coronary intervention
- CABG:
-
Coronary artery bypass grafting
- OLQ:
-
Orientation to life questionnaire
- PCS:
-
Physical component summary
- MCS:
-
Mental component summary
- NYHA:
-
New York Heart Association
- CCS:
-
Canadian cardiovascular society
- CI:
-
Confidence interval
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Acknowledgments
The authors would like to thank the patients with cardiological problems who participated in this study, and also Adriana Sudzinova MD, Helena Vargova MD, Antonia Halecka MD, Diana Matlakova, Eva Hackenberg and Zuzana Skodova PhD for their substantial help in the data collection. This work was supported by the Slovak Research and Development Agency under contract No. APVV-20-038305 (20%) and No. APVV-0220-10 (60%). Furthermore, this work was partially supported by the Agency of the Slovak Ministry of the Education, Science, Research and Sport of the Slovak Republic for the Structural Funds of the EU under project No. ITMS: 26220120058 (20%).
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Silarova, B., Nagyova, I., Rosenberger, J. et al. Sense of coherence as an independent predictor of health-related quality of life among coronary heart disease patients. Qual Life Res 21, 1863–1871 (2012). https://doi.org/10.1007/s11136-011-0106-2
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DOI: https://doi.org/10.1007/s11136-011-0106-2