Wouter Schaake1, Martijn de Groot, Wim P Krijnen, Johannes A Langendijk, Alfons C M van den Bergh. 1. Department of Radiation Oncology, University Medical Center Groningen, University of Groningen, The Netherlands; Hanze University of Applied Sciences, Professorship in Health Care and Nursing, Groningen, The Netherlands. Electronic address: schaakew@umcg.nl.
Abstract
PURPOSE: To investigate the course of quality of life (QoL) among prostate cancer patients treated with external beam radiotherapy and to compare the results with QoL of a normal age-matched reference population. PATIENTS AND METHODS: The study population was composed of 227 prostate cancer patients, treated with radiotherapy. The EORTC QLQ-C30 was used to assess QoL before radiotherapy and six months, one year, two years and three years after completion of radiotherapy. Mixed model analyses were used to investigate longitudinal changes in QoL. QoL of prostate cancer patients was compared to that of a normative cohort using a multivariate analysis of covariance. RESULTS: A significant decline in QoL was observed after radiotherapy (p<0.001). The addition of hormonal therapy to radiotherapy was associated with a lower level of role functioning. Patients with coronary heart disease and or chronic obstructive pulmonary disease or asthma had a significantly worse course in QoL. Although statistically significant, all differences were classified as small or trivial. CONCLUSION: Prostate cancer patients experience a small worsening of QoL as compared with baseline and as compared with a normal reference population. As co-morbidity modulates patients' post-treatment QoL, a proper assessment of co-morbidity should be included in future longitudinal analyses on QoL.
PURPOSE: To investigate the course of quality of life (QoL) among prostate cancerpatients treated with external beam radiotherapy and to compare the results with QoL of a normal age-matched reference population. PATIENTS AND METHODS: The study population was composed of 227 prostate cancerpatients, treated with radiotherapy. The EORTC QLQ-C30 was used to assess QoL before radiotherapy and six months, one year, two years and three years after completion of radiotherapy. Mixed model analyses were used to investigate longitudinal changes in QoL. QoL of prostate cancerpatients was compared to that of a normative cohort using a multivariate analysis of covariance. RESULTS: A significant decline in QoL was observed after radiotherapy (p<0.001). The addition of hormonal therapy to radiotherapy was associated with a lower level of role functioning. Patients with coronary heart disease and or chronic obstructive pulmonary disease or asthma had a significantly worse course in QoL. Although statistically significant, all differences were classified as small or trivial. CONCLUSION:Prostate cancerpatients experience a small worsening of QoL as compared with baseline and as compared with a normal reference population. As co-morbidity modulates patients' post-treatment QoL, a proper assessment of co-morbidity should be included in future longitudinal analyses on QoL.
Authors: Michael J Zelefsky; Bing Ying Poon; James Eastham; Andrew Vickers; Xin Pei; Peter T Scardino Journal: Radiother Oncol Date: 2016-01-09 Impact factor: 6.280
Authors: Wouter Schaake; Arjen van der Schaaf; Lisanne V van Dijk; Alfons C M van den Bergh; Johannes A Langendijk Journal: PLoS One Date: 2018-07-17 Impact factor: 3.240