Abstract
Background
The association of pain and suffering seems intuitive, but evidence substantiating this association is lacking. In studies of cancer patients, fatigue, rather than pain, is the most prevalent and debilitating symptom. This study aimed to compare the correlation of pain and fatigue to suffering, and identify other potential sources of suffering in cancer patients treated in a palliative care unit.
Methods
One hundred fifty cancer patients were surveyed. Fifteen variables were measured on a 0- to 10-point scale: suffering, pain, level of acceptable pain, effect of pain on quality of life, fatigue, level of acceptable fatigue, effect of fatigue on quality of life, and specific types of suffering. Univariable associations with suffering were made with Pearson correlation (continuous variables) or t test (binary predictors). Multivariable associations with suffering were assessed with linear regression analysis and bootstrapping.
Results
In multivariable analysis, highest pain (parameter estimate 0.38) had a greater impact on suffering than highest fatigue (parameter estimate 0.21). When other variables were assessed, 38% of the variability in suffering was accounted for by pain “now”, fatigue in the past 24 hours, and age.
Conclusion
The most important predictors of greater suffering in hospitalized cancer patients are pain, younger age, and fatigue. Despite their significant effect on suffering, other underlying contributors to suffering have yet to be identified. Designing interventions to reduce fatigue, in addition to pain management, may help in alleviating overall suffering.
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Acknowledgements
An abstract, reporting preliminary study findings, had been presented in various formats at three meetings: (1) as an oral presentation at the Annual Assembly of the American Academy of Hospice and Palliative Medicine on March 10, 2016 in Chicago, Illinois, USA; (2) as a poster at the Annual Meeting of the Multinational Association of Supportive Care in Cancer/International Society of Oral Oncology (MASCC/ISOO) from June 23 to 25, 2016 in Adelaide, Australia; and (3) as a poster at the 21st International Congress on Palliative Care from October 18 to 21, 2016, in Montreal, Quebec, Canada.
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Mellar P. Davis, Chirag Patel, Ruth Lagman, and Armida Parala-Metz contributed to the study conception and design. Material preparation, data collection, and analysis were performed by Mellar P. Davis, Chirag Patel, Ruth Lagman, Armida Parala-Metz, and Lisa A. Rybicki. The first draft of the manuscript was written by Mellar P. Davis, Renato V. Samala, and Lisa A. Rybicki.
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The study protocol was approved by Cleveland Clinic’s Institutional Review Board (IRB).
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As approved by the IRB, verbal informed consent was obtained from all individual participants included in the study.
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Davis, M.P., Rybicki, L.A., Samala, R.V. et al. Pain or fatigue: which correlates more with suffering in hospitalized cancer patients?. Support Care Cancer 29, 4535–4542 (2021). https://doi.org/10.1007/s00520-021-05996-2
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DOI: https://doi.org/10.1007/s00520-021-05996-2