The study’s aim was to evaluate the agreement between patients’ and nurses’ ratings of patients’ health-related quality of life (HRQoL) and to identify factors that affect their level of agreement. A total of 150 home health care cancer patients from Greece and all nurses (N = 5) who worked in the home health care units completed the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire–Core 30 (EORTC QLQ-C30). Intraclass correlation coefficients varied between .45 and .87, indicating a moderate to excellent agreement. Median absolute difference on QLQ-C30 scores ranged from 0.00 to 16.66 points on the 0 to 100 scale. Cohen’s d varied between −0.15 and 0.59. Nurses’ higher educational level was associated with greater agreement (p = .05). Nurses assessed lower the QoL of patients who were completely disabled than the patients themselves did (p = .005). Our findings suggest that Greek home health care nurses estimate patients’ QoL in a reliable and valid way.
SneeuwKCAaronsonNKSprangersMADetmarSBWeverLDSchornagelJH. Comparison of patient and proxy EORTC QLQ-C30 ratings in assessing the quality of life of cancer patients. J Clin Epidemiol. 1998;51(7):617-631.
2.
SneeuwKCAaronsonNKSprangersMADetmarSBWeverLDSchornagelJH. Value of caregiver ratings in evaluating the quality of life of patients with cancer. J Clin Oncol. 1997;15(3):1206-1217.
3.
McPhersonCJAddington-HallJM. Judging the quality of care at the end of life: can proxies provide reliable information?Soc Sci Med. 2003;56(1):95-109.
4.
SneeuwKCSprangersMAAaronsonNK. The role of health care providers and significant others in evaluating the quality of life of patients with chronic disease. J Clin Epidemiol. 2002;55(11):1130-1143.
5.
SprangersMAAaronsonNK. The role of health care providers and significant others in evaluating the quality of life of patients with chronic disease: a review. J Clin Epidemiol. 1992;45(7):743-760.
6.
JonesJMMcPhersonCJZimmermannCRodinGLeeLWCohenR. Assessing agreement between terminally ill cancer patients’ reports of their quality of life and family caregiver and palliative care physician proxy ratings. J Pain Symptom Manage. 2011;42(3):354-365.
7.
NekolaichukCLBrueraESpachynskiKMacEachernTHansonJMaguireTO. A comparison of patient and proxy symptom assessments in advanced cancer patients. Palliat Med. 1999;13(4):311-323.
8.
PetersenMLarsenHPedersenLSonneNGroenvoldM. Assessing health related quality of life in palliative care: comparing patient and physician assessments. Eur J Cancer. 2006;42(8):1159-1166.
9.
BrunelliCCostantiniMDi GiulioP. Quality-of-life evaluation: when do terminal cancer patients and health care providers agree?J Pain Symptom Manage. 1998;15(3):151-158.
10.
ZloklikovitsSAndritschEFrohlichBVerebesJDietmaierGSamoniggH. Assessing symptoms of terminally-ill patients by different raters: a prospective study. Palliat Support Care. 2005;3(2):87-98.
11.
AkinSDurnaZ. A comparative descriptive study examining the perceptions of cancer patients, family caregivers, and nurses on symptom severity in Turkey. Eur J Oncol Nurs. 17:30-37.
12.
Hladschik-KermerBKiernerKAHeckU. Patients and staff perceptions of cancer patients’ quality of life. Eur J Oncol Nurs. 2013;17(1):70-74.
13.
BahramiMParkerSBlackmanI. Patients’ quality of life: a comparison of patient and nurse perceptions. Contemp Nurse. 2008;29(1):67-79.
14.
SneeuwKCAaronsonNKSprangersMADetmarSBWeverLDSchornagelJH. Evaluating the quality of life of cancer patients: assessments by patients, significant others, physicians and nurses. Br J Cancer. 1999;81(1):87-94.
15.
KutnerJSBryantLBeatyBFaircloughD. Symptom distress and quality of life assessment at the end of life: the role of proxy response. J Pain Symptom Manage. 2006;32:300-310.
16.
LaugsandEASprangersMBjordalKSkorpenFKaasaSKlepstadP. Health care providers underestimate symptom intensities of cancer patients: a multicenter European study. Health Qual Life Outcomes. 2010;8:104. doi:10.1186/1477-7525-8-104.
17.
AaronsonNKAhmedzaiSBergmanB. The European Organisation for Research and Treatment of Cancer QLQ-C30: a quality of life instrument for use in international clinical trials in oncology. J Nati Cancer Inst. 1993;85(5):365-376.
18.
GundyCAaronsonNK. The influence of proxy perspective on patient-proxy agreement in the evaluation of health related quality of life. An empirical study. Med Care. 2008;46(2):209-216.
19.
MystakidouKTsilikaEParpaE. The EORTC core Quality of Life Questionnaire (QLQ-C30, version 3.0) in terminally ill patients under palliative care: validity and reliability in a Hellenic sample. Int J Cancer. 2001;94(1):135-139.
20.
PickardASKnightSJ. Proxy evaluation of health related quality of life: a conceptual framework of understanding multiple proxy perspectives. Med Care. 2005;43(5):493-499.
21.
OkenMMCreechRHTormeyDC. Toxicity and response criteria of the Eastern Cooperative Oncology Group. Am J Clin Oncol. 1982;5(6):649-655.
22.
LandisJRKochGG. The measurement of observer agreement for categorical data. Biometrics. 1977;33(1):159-174.
23.
CohenJ. Statistical Power Analysis for the Behavioral Sciences. 2nd ed.Hillsdale, NJ: Lawrence Erlbaum Associates; 1988.
24.
MartenssonGCarlssonMLampicC. Do nurses and cancer patients agree on cancer patients’ coping resources, emotional distress and quality of life?Eur J Cancer Care. 2008;17(4):350-360.
25.
von EssenL. Proxy ratings of patient quality of life. Acta Oncol. 2004;43(3):229-234.
26.
Karlou-StavrakaC. Exploring Caring Behaviors of Cancer Nurses in Greece [unpublished master’s thesis]. Athens, Greece: National and Kapodistrian University of Athens Faculty of Nursing; 2007.
27.
PatirakiEIPapathanassoglouEDTafasC. A randomized controlled trial of an educational intervention on Hellenic nursing staff’s knowledge and attitudes on cancer pain management. Eur J Oncol Nurs. 2006;10(5):337-352.
28.
HortonR. Differences in assessment of symptoms and quality of life between patients with advanced cancer and their specialist palliative care nurses in a home care setting. Palliat Med. 2002;16(6):488-494.
29.
UbelPALoewensteinGJepsonC. Whose quality of life? a commentary exploring discrepancies between health state evaluations of patients and the general public. Qual Life Res. 2003;12(6):599-607.
