RESUMEN
PURPOSE: The constructs evaluated in investigating association between psychosocial factors and cancer survival has varied between studies, and factors related to quality of life (QOL) have shown contradictory results. We investigated the effect of socioeconomic and early QOL and psychological factors on disease-free time and survival in localized prostate cancer. METHODS: A consecutive sample of patients with localized prostate cancer (T1-3, N0, M0) treated with external beam radiotherapy completed validated questionnaires on coping with cancer (the Ways of Coping Questionnaire WOC-CA), anger expression (the Anger Expression Scale), life events (the Life Experience Survey), and various aspects of QOL (the Rotterdam Symptom Checklist, the Depression Scale DEPS, the EORTC QLQ-C30, the LENT-SOMA outcome measure) approximately 4.5 months after diagnosis. Cox regression analyses were used to determine the predictors of the disease-free and overall survival times measured from the date of diagnosis to the date of a PSA-relapse and date of death. RESULTS: After controlling for biological prognostic factors, age, and adjuvant hormonal therapies, moderate and high socioeconomic status and an increased level of pain predicted longer survival, whereas an increased level of prostate-area symptoms and fatigue and, especially, reports of no/few physical symptoms were predictors of a shorter survival time. A longer PSA-relapse-free time was predicted by Cognitive Avoidance/Denial coping, whereas problems in social functioning, hopelessness, and an excellent self-reported QOL predicted a shorter PSA-relapse-free time. CONCLUSIONS: Higher socioeconomic status was prognostic for longer survival, as previously reported. Patients with a seemingly good QOL (few physical complaints, excellent self-reported QOL) had poorer prognoses. This association may due to the survival decreasing effect of emotional non-expression; patients with high emotional non-expression may over-report their wellbeing in simple measures, and thus actually be in need of extra attention and care.
Asunto(s)
Neoplasias de la Próstata/psicología , Neoplasias de la Próstata/radioterapia , Calidad de Vida/psicología , Clase Social , Estrés Psicológico/psicología , Adaptación Psicológica , Anciano , Anciano de 80 o más Años , Ira , Depresión , Fatiga/psicología , Femenino , Humanos , Acontecimientos que Cambian la Vida , Masculino , Persona de Mediana Edad , Dolor/patología , Pronóstico , Escalas de Valoración Psiquiátrica , Encuestas y CuestionariosRESUMEN
GOALS OF WORK: Noncancer life stresses affect psychosocial stress processes and have an impact on quality of life (QOL) of the patients. However, investigating life stresses in cancer is a recent development. We evaluated the life stresses of newly diagnosed melanoma, breast cancer, and prostate cancer patients in detail and investigated their impact on QOL outcomes after localized cancer diagnosis. MATERIALS AND METHODS: Life change events from the previous year (negative events, positive events, total impact of events, impacts of the negative events, and impacts of loss events) and chronic ongoing life strains were measured with the Life Experience Survey and the Chronic Strains Survey in newly diagnosed patients 3 months after the diagnosis. Also, perceived symptoms and QOL were measured, and in melanoma and breast cancer, these were repeated up to 2 years later. RESULTS: Noncancer life stress was common in newly diagnosed cancer patients: Both acute and chronic life stresses were experienced by four-fifths. Loss events (fateful negative events or social loss events) were reported by one-third. Many patients had a preceding chronic illness. Along with the cancer and treatment stresses, the noncancer life stresses predicted poorer QOL, particularly psychological and depressive symptoms. Different life stresses predicted slightly different domains of QOL, and depressive symptoms tended to be predicted by several kinds of life stresses. Baseline life stresses had impact also on later QOL in breast cancer. CONCLUSIONS: Noncancer life stresses are common among newly diagnosed cancer patients and have impact on QOL, and thus they should be taken into account in cancer care. Screening for noncancer life stresses may offer means to enhance QOL outcomes in cancer.