Normative data for the EORTC QLQ-C30 and EORTC-sexuality items in the general Dutch population

Cancer in the Netherlands. Trends, prognoses en implications for healthcare. Amsterdam: Signalling Committee Cancer of the Dutch Cancer Society; 2004. Warren, 2008, Current and future utilization of services from medical oncologists, J Clin Oncol, 26, 3242, 10.1200/JCO.2007.14.6357 Crespi, 2008, Refinement and psychometric evaluation of the impact of cancer scale, J Natl Cancer Inst, 100, 1530, 10.1093/jnci/djn340 Zebrack, 2006, Assessing the impact of cancer: development of a new instrument for long-term survivors, Psychooncology, 15, 407, 10.1002/pon.963 Ferrell, 1995, Measurement of the quality of life in cancer survivors, Qual Life Res, 4, 523, 10.1007/BF00634747 Aaronson, 1993, The European Organization for Research and Treatment of Cancer QLQ-C30: a quality-of-life instrument for use in international clinical trials in oncology, J Natl Cancer Inst, 85, 365, 10.1093/jnci/85.5.365 Nout, 2009, Quality of life after pelvic radiotherapy or vaginal brachytherapy for endometrial cancer: first results of the randomized PORTEC-2 trial, J Clin Oncol, 27, 3547, 10.1200/JCO.2008.20.2424 de Vries, 2009, Quality of life after axillary or groin sentinel lymph node biopsy, with or without completion lymph node dissection, in patients with cutaneous melanoma, Ann Surg Oncol, 16, 2840, 10.1245/s10434-009-0602-6 Langendijk, 2008, Impact of late treatment-related toxicity on quality of life among patients with head and neck cancer treated with radiotherapy, J Clin Oncol, 26, 3770, 10.1200/JCO.2007.14.6647 Gockel, 2010, Long-term survivors of esophageal cancer: disease-specific quality of life, general health and complications, J Surg Oncol, 102, 516, 10.1002/jso.21434 Rossen, 2009, Health-related quality of life in long-term survivors of testicular cancer, J Clin Oncol, 27, 5993, 10.1200/JCO.2008.19.6931 Park, 2007, Quality of life and sexual problems in disease-free survivors of cervical cancer compared with the general population, Cancer, 110, 2716, 10.1002/cncr.23094 Hjermstad, 1998, Health-related quality of life in the general Norwegian population assessed by the European Organization for Research and Treatment of Cancer Core Quality-of-Life Questionnaire: the QLQ=C30 (+ 3), J Clin Oncol, 16, 1188, 10.1200/JCO.1998.16.3.1188 Hjermstad, 1998, Using reference data on quality of life – the importance of adjusting for age and gender, exemplified by the EORTC QLQ-C30 (+3), Eur J Cancer, 34, 1381, 10.1016/S0959-8049(98)00136-1 Klee, 1997, Quality of life of Danish women: population-based norms of the EORTC QLQ-C30, Qual Life Res, 6, 27, 10.1023/A:1026461310761 Michelson, 2000, Health-related quality of life measured by the EORTC QLQ-C30 – reference values from a large sample of Swedish population, Acta Oncol, 39, 477, 10.1080/028418600750013384 Schwarz, 2001, Reference data for the quality of life questionnaire EORTC QLQ-C30 in the general German population, Eur J Cancer, 37, 1345, 10.1016/S0959-8049(00)00447-0 Fayers, 2001 Sangha, 2003, The self-administered comorbidity questionnaire: a new method to assess comorbidity for clinical and health services research, Arthritis Rheum, 49, 156, 10.1002/art.10993 Cronbach, 1951, Coefficient alpha and the internal structure of tests, Psychometrika, 16, 297, 10.1007/BF02310555 Osoba, 1998, Interpreting the significance of changes in health-related quality-of-life scores, J Clin Oncol, 16, 139, 10.1200/JCO.1998.16.1.139 Janssen-Heijnen, 2005, Prognostic impact of increasing age and co-morbidity in cancer patients: a population-based approach, Crit Rev Oncol Hematol, 55, 231, 10.1016/j.critrevonc.2005.04.008 Wedding, 2007, Co-morbidity and functional deficits independently contribute to quality of life before chemotherapy in elderly cancer patients, Support Care Cancer, 15, 1097, 10.1007/s00520-007-0228-9 Fossa, 2007, Stability of health-related quality of life in the Norwegian general population and impact of chronic morbidity in individuals with and without a cancer diagnosis, Acta Oncol, 46, 452, 10.1080/02841860601182641 Ramsey, 2007, On the importance of race, socioeconomic status and comorbidity when evaluating quality of life in men with prostate cancer, J Urol, 177, 1992, 10.1016/j.juro.2007.01.138 Tierney, 2008, Sexuality: a quality-of-life issue for cancer survivors, Semin Oncol Nurs, 24, 71, 10.1016/j.soncn.2008.02.001 Korfage, 2008, Does “normal” aging imply urinary, bowel, and erectile dysfunction? A general population survey, Urology, 72, 3, 10.1016/j.urology.2008.01.058 Cronin, 1998, Case–control studies of cancer screening: theory and practice, J Natl Cancer Inst, 90, 498, 10.1093/jnci/90.7.498 Vistad, 2007, The sexual activity questionnaire: psychometric properties and normative data in a Norwegian population sample, J Womens Health (Larchmt), 16, 139, 10.1089/jwh.2006.0052 Fayers, 2001, Interpreting quality of life data: population-based reference data for the EORTC QLQ-C30, Eur J Cancer, 37, 1331, 10.1016/S0959-8049(01)00127-7 Ritter, 2004, Internet versus mailed questionnaires: a randomized comparison, J Med Internet Res, 6, e29, 10.2196/jmir.6.3.e29 Vallejo, 2007, Psychological assessment via the internet: a reliability and validity study of online (vs paper-and-pencil) versions of the General Health Questionnaire-28 (GHQ-28) and the Symptoms Check-List-90-Revised (SCL-90-R), J Med Internet Res, 9, e2, 10.2196/jmir.9.1.e2