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Cheung YB, Goh C, Thumboo J, Khoo KS, Wee J. Variability and Sample Size Requirements of Quality-of-Life Measures: A Randomized Study of Three Major Questionnaires. J Clin Oncol 2005; 23:4936-44. [PMID: 16051946 DOI: 10.1200/jco.2005.07.141] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
PurposeTo compare the variability and sample size requirements of the global quality-of-life (QOL) scores of the following three major QOL instruments: the Functional Assessment of Cancer Therapy–General (FACT-G), Functional Living Index–Cancer (FLIC), and European Organisation for Research and Treatment of Cancer Core Quality of Life Questionnaire C30 (EORTC QLQ-C30).Patients and MethodsCancer patients were randomly assigned to answer two of the three instruments using an incomplete block design (n = 1,268). The instruments were compared in terms of coefficient of variation, effect size in detecting a difference between patients with different performance status, and correlation coefficient between scores at baseline and follow-up.ResultsThe FACT-G and FLIC had significantly smaller coefficients of variation than the EORTC QLQ-C30 (both P < .05). The FLIC also had significantly larger correlation coefficients between scores at baseline and follow-up than the EORTC QLQ-C30 (P < .05). The FACT-G and the FLIC had a larger effect size in a cross-sectional and longitudinal setting, respectively, than the EORTC QLQ-C30 in differentiating patients with different performance status (both P < .05).ConclusionIn some aspects, the FACT-G and FLIC global QOL scores had smaller variability and larger discriminative ability than the EORTC QLQ-C30. Further research using other criteria to compare the three instruments is recommended.
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Affiliation(s)
- Yin-Bun Cheung
- Division of Clinical Trials and Epidemiological Sciences, National Cancer Centre, Singapore 169610.
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52
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Kopp M, Holzner B, Meraner V, Sperner-Unterweger B, Kemmler G, Nguyen-Van-Tam DP, Nachbaur D. Quality of life in adult hematopoietic cell transplant patients at least 5 yr after treatment: a comparison with healthy controls. Eur J Haematol 2005; 74:304-8. [PMID: 15777342 DOI: 10.1111/j.1600-0609.2004.00402.x] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
BACKGROUND AND OBJECTIVE As long-term survivors of hematopoietic cell transplantation (HCT) become more numerous, studies addressing the issue of long-term follow-up are necessary. In this study, we report on the quality of life (QOL) of HCT-patients, who were alive at least at 5 yr after transplantation in comparison to an age- and sex-matched sample of healthy controls assessed in the same time-period and the same geographical region. DESIGN AND METHODS The European Group of Research and Treatment of Cancer (EORTC)-QOL Questionnaire (EORTC-QLQ C30) was sent by post to 39 HCT-survivors. Thirty-four patients answered the questionnaire. Patients were compared with 68 healthy controls from the same geographical region. Patients and controls completed the EORTC in the same time period. RESULTS Mann-Whitney U-tests identified significantly lower QOL on the dimensions of physical and social functioning and on the financial impact symptom scale. CONCLUSIONS Patients who had survived their HCT for more than 5 yr did generally well in terms of global QOL. This is consistent with Kiss et al. (J Clin Oncol 2002;20:2334-2343), who found that chronic myeloid leukemia patients who were alive at least 10 yr after HCT report lower physical functioning in comparison to healthy controls. Problems in the areas of social functioning and financial difficulty can possibly be addressed by intensive rehabilitation processes integrating patients, family members and significant others. Interdisciplinary (medical, psychological and social) treatment of patients should not come to an end after the acute phase of the illness but should continue during check-ups following transplantation.
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Affiliation(s)
- Martin Kopp
- Department of General Psychiatry, Innsbruck University Hospital, Innsbruck, Austria.
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Blazeby JM, Kavadas V, Vickery CW, Greenwood R, Berrisford RG, Alderson D. A prospective comparison of quality of life measures for patients with esophageal cancer. Qual Life Res 2005; 14:387-93. [PMID: 15892427 DOI: 10.1007/s11136-004-0622-4] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Among the most widely used instruments to assess quality of life (QOL) in patients with cancer are the European Organization for Research and Treatment of Cancer core questionnaire (EORTC QLQ-C30) and the Functional Assessment of Chronic Illness Therapy, cancer instrument (FACT-G). This study compared these approaches in patients who had undergone esophagectomy for cancer. The EORTC core questionnaire and esophageal module and the FACT-G and esophageal scale were completed by 57 patients. Missing data, relationships between QOL scales and analyses of patients' preferences were examined. There were 14/2736 (0.5%) missing items from EORTC questionnaires and 45/2565 (1.8%) from FACT instruments (p < 0.01). Relationships between corresponding generic EORTC and FACT scales were average to good (r > 0.57) except for the social function scale (r = 0.01). EORTC symptom scores were moderately correlated with the FACT general scale, but poorly related to the FACT esophageal scale (r < 0.28). EORTC swallowing scores were moderately correlated with all FACT scales. The FACT-E and EORTC QLQ-C30 measure assess similar generic aspects of QOL (except social function). EORTC esophageal symptom scores relate poorly to FACT esophageal scales, except for swallowing. Choice of QOL measure after esophagectomy for cancer depends upon outcomes of interest. Future studies will determine which instruments are appropriate in each context.
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54
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Díez-Campelo M, Pérez-Simón JA, González-Porras JR, García-Cecilia JM, Salinero M, Caballero MD, Cañizo MC, Ocio EM, Miguel JFS. Quality of life assessment in patients undergoing reduced intensity conditioning allogeneic as compared to autologous transplantation: results of a prospective study. Bone Marrow Transplant 2005; 34:729-38. [PMID: 15354204 DOI: 10.1038/sj.bmt.1704646] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The aim was to analyze quality-of-life (QOL) during the first year post transplant in 47 patients undergoing reduced-intensity conditioning (RIC) allotransplantation, and to compare these with a similar subgroup of patients receiving autologous stem cell transplantation (ASCT). We used self-reported questionnaires. Each answer scored from 0 (not at all) to 4 (very much), with higher scores indicating worse functioning. Mean value of physical categories among RIC transplants ranged between 1.23 and 0.77 indicating that patients scored very low for physical symptoms. Patients undergoing ASCT had higher scores in questionnaires performed early after transplant and then gradually improved (P < 0.001). Overall, when we compared physical functioning scores, allo-RIC did significantly better (P = 0.049). Nevertheless, while allo-RIC scores were significantly better for the first three questionnaires, ASCT patients did better in the last two questionnaires. These findings are in accordance with the toxicities observed in both subgroups which are lower in the RIC group early after transplant. No significant differences were observed between either subgroup for any of the functional, social/ family, psychological distress and satisfaction with doctor/nurse relationship items. We have observed similar QOL among patients undergoing RIC-allo as compared to ASCT although GVHD remains an important 'event' in QOL.
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Affiliation(s)
- M Díez-Campelo
- Servicio de Hematología, Hospital Universitario de Salamanca, Paseo de San Vicente, s/n, 37007 Salamanca, Spain.
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55
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Seldin DC, Anderson JJ, Sanchorawala V, Malek K, Wright DG, Quillen K, Finn KT, Berk JL, Dember LM, Falk RH, Skinner M. Improvement in quality of life of patients with AL amyloidosis treated with high-dose melphalan and autologous stem cell transplantation. Blood 2004; 104:1888-93. [PMID: 15155460 DOI: 10.1182/blood-2004-01-0089] [Citation(s) in RCA: 93] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Treatment of AL amyloidosis patients with high-dose melphalan chemotherapy followed by autologous peripheral blood stem cell transplantation (HDM/SCT) can produce hematologic complete responses (CRs) and improvement in organ function. To determine whether these responses are accompanied by improvement in quality of life (QOL), we employed the Medical Outcomes Study (MOS) 36-item Short Form General Health Survey (SF-36) questionnaire for 544 patients evaluated between 1994 and 2002. At baseline, the scores were significantly lower on all 8 SF-36 scales compared with age-matched population norms: the composite physical component summary (PCS) for the AL patients was 34.5 versus the population norm of 46.8, and the mental component summary (MCS) was 45.0 versus the norm of 51.5. All SF-36 scores improved at 1 year, with the MCS reaching the population norm. The PCS, though improved, was still lower than normal but was greater in the subgroup of patients who achieved a hematologic CR; the PCS normalized at 2 years in these patients. Thus, treatment of AL amyloidosis patients with HDM/SCT produces measurable and sustained improvements in quality of life, particularly in those patients who achieve hematologic CR.
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Affiliation(s)
- David C Seldin
- Amyloid Treatment and Research Program, Department of Medicine, Boston University School of Medicine, Boston, MA, USA.
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Helder DI, Bakker B, de Heer P, van der Veen F, Vossen JMJJ, Wit JM, Kaptein AA. Quality of life in adults following bone marrow transplantation during childhood. Bone Marrow Transplant 2003; 33:329-36. [PMID: 14647247 DOI: 10.1038/sj.bmt.1704345] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
SUMMARY Quality of life (QOL) was assessed in 22 young adults, 14 years - on average- after having received bone marrow transplantation (BMT) during childhood at the Leiden University Medical Center. All were disease-free and >16 years when interviewed. The sickness impact profile and the Medical Outcome Study 36-item Short Form Health Survey were used as generic questionnaires in the assessment of QOL. The Functional Assessment of Cancer Therapy-Bone Marrow Transplant Scale (FACT-BMT) was used as a disease-specific measure of QOL. Coping was assessed by means of the Utrecht coping list. BMT-related variables were obtained from medical files. Of the generic QOL measures, most results fell within the normal range of functioning, although some illness-related impairment was reported on subscales for general and work-related functioning. Compared to a reference sample of patients who had received BMT as adults, patients involved in this study scored significantly higher on the 'emotional well-being' subscale of the FACT-BMT, indicating significantly better emotional functioning. The age at BMT and total body irradiation (TBI) were not related to patients' QOL. We can conclude that at long term, having received BMT during childhood does not negatively affect the QOL of patients. Bone Marrow Transplantation (2004) 33, 329-336. doi:10.1038/sj.bmt.1704345 Published online 1 December 2003
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Affiliation(s)
- D I Helder
- Unit of Psychology, Leiden University Medical Center, The Netherlands
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57
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Demierre MF, Kim YH, Zackheim HS. Prognosis, clinical outcomes and quality of life issues in cutaneous T-cell lymphoma. Hematol Oncol Clin North Am 2003; 17:1485-507. [PMID: 14710899 DOI: 10.1016/s0889-8588(03)00111-4] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Although the need for a specific QOL index for MF/SS has been recognized, little work has been done in this area. QOL instruments should address general health concepts, as well as specific issues that are relevant to patients who have MF/SS; a combination of two instruments may be appropriate. Confirming the validity, reliability, and responsiveness to change of a combination of QOL instruments, such as SKINDEX-29 and FACT-G, in patients who have MF/SS will be relevant. For patients who have MF/SS, focusing our efforts on improving the disease and their QOL should translate into improvements that are meaningful to them. Thus, our goal should be to incorporate the findings of QOL research into practice and use the results to guide our practices, as they relate to therapy. Some important considerations are: We must be explicit about what will be done with the information that is obtained about an individual's QOL. We should consider what additional knowledge QOL measures provide that we could not otherwise have. We should be ready for unexpected results, as exemplified by instances where aggressive therapy could result in improved QOL. Although challenges exist in moving forward QOL research in CTCL, the words of wisdom of Tannock bring the concept of QOL into perspective: "When cure remains elusive, it is time to start treating the patient, not just the tumor." A final consideration is that we should not forget the dimension of spirituality, which is especially relevant to patients who have advanced MF/SS. Spirituality is characterized by the capacity to seek purpose and meaning, to have faith, to love, to forgive, and to see beyond current circumstances. Spirituality enables a person to rise above suffering. Unfortunately, research on spirituality is scarce, in part, because of the difficulty in assessing spiritual suffering. Nevertheless, physicians who are caring for patients who have advanced MF/SS should acknowledge the spiritual dimension as an integral component of the dying process.
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Affiliation(s)
- Marie-France Demierre
- Department of Dermatology and Medicine, Boston University School of Medicine, 720 Harrison Avenue, DOB 801A, Boston, MA 02118, USA.
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58
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Abstract
Economic evaluation is a comparison of the costs and consequences of alternative healthcare interventions. Consequences are best assessed as utilities; quality-adjusted measures of effectiveness. Although few substantive data are available, it appears that hematopoietic stem cell transplantation is even more cost-effective in children than in adults.
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Affiliation(s)
- Ronald D Barr
- Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada.
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Boling W, Fouladi RT, Basen-Engquist K. Health-related quality of life in gynecological oncology: instruments and psychometric properties. Int J Gynecol Cancer 2003; 13:5-14. [PMID: 12631213 DOI: 10.1046/j.1525-1438.2003.13051.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Quality of life is generally recognized as a subjective, multidimensional concept, which places emphasis on the self-perception and subjective experience of the patient compared to the expectation of an individual's current health state. Health-related quality of life, which encompasses the psychological, physical, and social functioning of patients, has evolved over recent decades into an established treatment outcome in cancer clinical trials. Assessing quality of life as a clinical trial outcome enables clinicians to better address concerns of gynecological oncology patients, but selection of appropriate measurement tools is critical. This article reviews the concepts of reliability and validity, and describes three health-related quality of life instruments, their psychometric properties, and their use in gynecological oncology clinical trials and other cancer research.
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Affiliation(s)
- W Boling
- Department of Health and Human Performance, University of Houston, University of Texas M D Anderson Cancer Center, Houston, Texas 77030-4095, USA
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Kemmler G, Holzner B, Kopp M, Dünser M, Greil R, Hahn E, Sperner-Unterweger B. Multidimensional scaling as a tool for analysing quality of life data. Qual Life Res 2002; 11:223-33. [PMID: 12074260 DOI: 10.1023/a:1015207400490] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Multidimensional scaling (MDS) is introduced and discussed as a graphical method to complement conventional descriptive and confirmatory methods in the validation and analysis of quality of life (QOL) data. An outline of M DS as a statistical technique is given, and its application in the context of QOL research is described. The use of MDS is then illustrated in an example based on a study of 300 cancer survivors who completed the functional assessment of cancer therapy-general (FACT-G) and the EORTC core quality of life questionnaire (QLQ-C30). The correlational structure of the two widely used QOL instruments is investigated by means of MDS, and differences between the two questionnaires are elaborated. Finally, the merits and drawbacks of MDS are discussed in the specific context of the example and in the general framework of QOL research.
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Affiliation(s)
- G Kemmler
- Department of Psychiatry, Innsbruck University Clinics, Austria.
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61
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Kuenstner S, Langelotz C, Budach V, Possinger K, Krause B, Sezer O. The comparability of quality of life scores. a multitrait multimethod analysis of the EORTC QLQ-C30, SF-36 and FLIC questionnaires. Eur J Cancer 2002; 38:339-48. [PMID: 11818198 DOI: 10.1016/s0959-8049(01)00369-0] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
This study investigates whether similarly named subscales of three quality of life questionnaires, the European Organization for Research and Treatment of Cancer Quality of Life Core Questionnaire (EORTC QLQ-C30), the Medical Outcome Study Quality of Life Questionnaire Short Form 36 (SF-36) and the Functional Living Index Cancer questionnaire (FLIC) assess similar aspects of the patients' quality of life. A multitrait multimethod analysis on the answers of 234 cancer patients showed that subscale correlations as indicators of convergent validity significantly exceed corresponding correlations of discriminant validity in five of the seven dimensions analysed (physical functioning, emotional functioning, pain, fatigue/vitality and nausea/vomiting). The results of the social functioning and overall health subscales are less clear. Content analysis of the social functioning scales reveals that this domain is differently operationalised in the three questionnaires. Linear regressions of the overall health subscales suggest that patients interpret overall health questions of the three questionnaires differently. The results show that overall health subscales of these three questionnaires cannot be equated, while most specific subscales provide valid results.
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Affiliation(s)
- S Kuenstner
- Department of Oncology and Hematology, Universitatsklinikum Charite, Humboldt Universitat, 10098, Berlin, Germany
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Lau AKL, Chang CH, Tai JWM, Eremenco S, Liang R, Lie AKW, Fong DYT, Lau CM. Translation and validation of the Functional Assessment of Cancer Therapy-Bone Marrow Transplant (FACT-BMT) Version 4 quality of life instrument into traditional Chinese. Bone Marrow Transplant 2002; 29:41-9. [PMID: 11840143 DOI: 10.1038/sj.bmt.1703313] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2001] [Accepted: 09/18/2001] [Indexed: 11/12/2022]
Abstract
The need for a culturally sensitive instrument to assess quality of life (QOL) of patients in international oncology clinical trials has been well documented. This study was designed to evaluate the psychometric properties of the traditional Chinese translation (TCHI) of the Functional Assessment of Cancer Therapy-Bone Marrow Transplant (FACT-BMT) Version 4. The FACT-BMT consists of the FACT-General and treatment-specific concerns of bone marrow transplantation. The Chinese translation follows the standard Functional Assessment of Chronic Illness Therapy (FACIT) translation methodology. Bilingual teams from the United States and Hong Kong reviewed the translation to develop a provisional TCHI FACT-BMT, which was then pre-tested by interviewing 20 native Chinese-speaking BMT patients in Hong Kong. The pre-test results indicated good content coverage and overall comprehensibility. A refined translation, taking into account patient comments, was validated by 134 BMT patients in Hong Kong. The results indicated the high internal consistency of the TCHI FACT-BMT scales, with Cronbach's alpha coefficients ranging from 0.71 (emotional well-being) to 0.92 (FACT-BMT total). The FACT-BMT also demonstrated good construct validity when correlated with SF-36 Health Survey scales. The QOL of Chinese BMT patients can now be evaluated using a well-validated international QOL instrument in their own language.
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Affiliation(s)
- A K L Lau
- Department of Nursing Studies, the University of Hong Kong, Hong Kong Special Administrative Region, People's Republic of China
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63
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Holzner B, Kemmler G, Sperner-Unterweger B, Kopp M, Dünser M, Margreiter R, Marschitz I, Nachbaur D, Fleischhacker WW, Greil R. Quality of life measurement in oncology--a matter of the assessment instrument? Eur J Cancer 2001; 37:2349-56. [PMID: 11720827 DOI: 10.1016/s0959-8049(01)00307-0] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Two widely used quality of life questionnaires, European Organization for Research and Treatment of Cancer Core (EORTC QLQ-C30) & Functional Assessment of Cancer Therapy-General (FACT-G), were examined for their comparability using four different groups of cancer patients. During a follow-up investigation, 418 cancer patients (Hodgkin's disease, breast cancer, bone marrow transplantation (BMT), chronic lymphatic leukaemia (CLL)) completed both the EORTC QLC-C30 and the FACT-G during the same session. For an illustration of the differences between the two Quality of Life (QoL) instruments, pairs of diagnostic groups were formed and their QoL scores using the EORTC QLQ-C30 and FACT-G compared. The corresponding subscales of the EORTC-QLC-C30 and the FACT-G show only low to moderate intercorrelations across all four groups of cancer patients studied. In particular, a comparison of pairs, namely Hodgkin's disease versus breast cancer patients and BMT versus CLL patients, highlights substantial differences in the corresponding subscales of the EORTC QLQ-C30 and the FACT-G. The results of the QoL investigations should not be interpreted independently of the instrument used and an interpretation of results must be based on the contents of items of the respective questionnaires.
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Affiliation(s)
- B Holzner
- Department of Biological Psychiatry, Innsbruck University Hospital, Anichstrasse 35, A-6020 Innsbruck, Austria.
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Fukunishi I, Tsuruta T, Hirabayashi N, Asukai N. Association of alexithymic characteristics and posttraumatic stress responses following medical treatment for children with refractory hematological diseases. Psychol Rep 2001; 89:527-34. [PMID: 11824712 DOI: 10.2466/pr0.2001.89.3.527] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Recent research has examined posttraumatic stress disorder (PTSD) following medical treatment for children with refractory hematological diseases such as leukemia. However, much remains unknown. This study examined the association of alexithymic characteristics on the manifestation of posttraumatic stress responses in 33 children with refractory hematological diseases. Of 33 children, 27 (81.8%) exhibited posttraumatic stress responses following medical treatment for refractory hematological diseases. The frequency of posttraumatic stress responses was significantly higher than with children who experienced severe flood disaster. Also, the severity of posttraumatic stress responses was significantly stronger than for children who experienced severe flood disaster. Moreover, children with refractory hematological diseases were more likely to exhibit alexithymic characteristics. The alexithymic characteristics were significantly and positively correlated with avoidance and emotional numbing among posttraumatic stress responses. The results suggest the possibility that alexithymic characteristics may be predictive of the manifestation of avoidance and emotional numbing among posttraumatic stress responses following medical treatment for refractory hematological diseases.
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Affiliation(s)
- I Fukunishi
- Tokyo Institute of Psychiatry, Tokyo Metropolitan Organization for Medical Research, Japan.
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FUKUNISHI ISAO. ASSOCIATION OF ALEXITHYMIC CHARACTERISTICS AND POSTTRAUMATIC STRESS RESPONSES FOLLOWING MEDICAL TREATMENT FOR CHILDREN WITH REFRACTORY HEMATOLOGICAL DISEASES. Psychol Rep 2001. [DOI: 10.2466/pr0.89.7.527-534] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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