The Functional Assessment of Cancer Therapy - General (FACT-G) is valid for monitoring quality of life in patients with non-Hodgkin lymphoma

References

• American Cancer Society. Cancer facts and figures2010. Atlanta, GA: American Cancer Society; 2010.
   Google Scholar
• Swerdlow SH, Campo E, Harris NL, ., editors. WHO classification of tumours of haematopoietic and lymphoid tissues. Lyon: IARC; 2008.
   Google Scholar
• A predictive model for aggressive non-Hodgkin's lymphoma. The International Non-Hodgkin's Lymphoma Prognostic Factors Project. N Engl J Med 1993;329:987–994.
   PubMed Web of Science ®Google Scholar
• Drake MT, Maurer MJ, Link BK, . Vitamin D insufficiency and prognosis in non-Hodgkin's lymphoma. J Clin Oncol 2010;28:4191–4198.
   PubMed Web of Science ®Google Scholar
• Cella D, Tulsky DS, Gray G, . The Functional Assessment of Cancer Therapy scale: development and validation of the general measure. J Clin Oncol 1993;11:570–579.
   PubMed Web of Science ®Google Scholar
• Ware J, Snow K, Kosinski M. SF-36 health survey: manual and interpretation guide. Lincoln, RI: QualityMetric, Inc.; 2000.
   Google Scholar
• Webster K, Cashy J, Cella D. Measuring quality of life (QOL) in patients with non-Hodgkin's lymphoma (NHL): the Functional Assessment of Cancer Therapy - Lymphoma (FACT-Lym). In: 12th Annual Conference of the International Society for Quality of Life Research. San Francisco, CA: Springer; 2005. Abstract P-218/1650 (page 2103).
   Google Scholar
• Fairclough DL, Cella DF. Functional Assessment of Cancer Therapy (FACT-G): non-response to individual questions. Qual Life Res 1996; 5:321–329.
   PubMed Web of Science ®Google Scholar
• Cella D, editor. Manual of the Functional Assessment of Chronic Illness Therapy (FACIT) Measurement System, Version 4.1. Evanston, IL: Center on Outcomes, Research & Education (CORE); 2004.
   Google Scholar
• Hahn EA, Cella D, Chassany O, . Precision of health-related quality-of-life data compared with other clinical measures. Mayo Clin Proc 2007;82:1244–1254.
   PubMed Web of Science ®Google Scholar
• McHorney CA, Ware JE, Lu JFR, . The MOS 36-Item Short-Form Health Survey (SF-36): III. Tests of data quality, scaling assumptions, and reliability across diverse patient groups. Med Care 1994;32:40–66.
   PubMed Web of Science ®Google Scholar
• Crocker L, Algina J. Introduction to classical & modern test theory. Orlando, FL: Harcourt Brace Jovanovich College Publishers; 1986.
   Google Scholar
• Locke DE, Decker PA, Sloan JA, . Validation of single-item linear analog scale assessment of quality of life in neuro-oncology patients. J Pain Symptom Manage 2007;34:628–638.
   PubMed Web of Science ®Google Scholar
• Farrar JT, Young JP Jr, LaMoreaux L, . Clinical importance of changes in chronic pain intensity measured on an 11-point numerical pain rating scale. Pain 2001;94:149–158.
   PubMed Web of Science ®Google Scholar
• Brucker PS, Yost K, Cashy J, . General population and cancer patient norms for the Functional Assessment of Cancer Therapy-General (FACT-G). Eval Health Prof 2005;28:192–211.
   PubMed Web of Science ®Google Scholar
• Cella D, Hahn EA, Dineen K. Meaningful change in cancer-specific quality of life scores: differences between improvement and worsening. Qual Life Res 2002;11:207–221.
   PubMed Web of Science ®Google Scholar
• Yost KJ, Eton DT. Combining distribution- and anchor-based approaches to determine minimally important differences: the FACIT experience. Eval Health Prof 2005;28:172–191.
   PubMed Web of Science ®Google Scholar
• Ashing-Giwa KT, Kim J, Tejero JS. Measuring quality of life among cervical cancer survivors: preliminary assessment of instrumentation validity in a cross-cultural study. Qual Life Res 2008;17:147–157.
   PubMed Web of Science ®Google Scholar
• Smith AB, Wright P, Selby PJ, . A Rasch and factor analysis of the Functional Assessment of Cancer Therapy-General (FACT-G). Health Qual Life Outcomes 2007;5:19.
   PubMed Web of Science ®Google Scholar
• Herzog A, Bachman J. Effects of questionnaire length on response quality. Public Opin Q 1981;45:549–559.
   Web of Science ®Google Scholar
• de Vet HC, Terwee CB, Mokkink L, . Measurement in medicine: a practical guide. New York: Cambridge University Press; 2011.
   Google Scholar
• Arora NK, Finney Rutten LJ, Gustafson DH, . Perceived helpfulness and impact of social support provided by family, friends, and health care providers to women newly diagnosed with breast cancer. Psychooncology 2007;16:474–486.
   PubMed Web of Science ®Google Scholar
• Beijer S, Kempen GI, Pijls-Johannesma MC, . Determinants of overall quality of life in preterminal cancer patients. Int J Cancer 2008;123:232–235.
   PubMed Web of Science ®Google Scholar
• Sherbourne CD, Stewart AL. The MOS social support survey. Soc Sci Med 1991;32:705–714.
   PubMed Web of Science ®Google Scholar