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Economic Evaluation of Strategies to Prevent and Treat Febrile Neutropenia in Lymphoma Patients

This thesis employed methods used in health care decision making to evaluate strategies for prevention and treatment of febrile neutropenia (FN) in non-Hodgkin lymphoma (NHL) patients. The objectives of this thesis were to quantify the cost-effectiveness of filgrastim and pegfilgrastim as primary prophylaxis against FN in NHL patients, to develop an algorithm for converting health-related quality of life data collected in non-Hodgkin lymphoma patients into preference-based health utility values, and to evaluate NHL patients’ preferences for outpatient treatment of FN. The cost-effectiveness analysis demonstrated that neither filgrastim, nor pegfilgrastim are cost-effective, with respective incremental cost-effectiveness ratios [95% confidence interval] of $4,599,000/QALY [$597,045, dominated] and $6,272,000/QALY [$730,692, dominated], well above the normally accepted threshold of $50,000/QALY. The algorithm for deriving health utility values was based on a regression model that used health utility values obtained from the EQ-5D instrument as the outcome variable and the four subscales of the Functional Assessment of Cancer Therapy – General (FACT-G) questionnaire as the predictor variables. The model final model included three of the FACT-G subscales, and had an R-squared value of 0.502 and a mean squared error of 0.013. A discrete choice experiment was used to examine patients’ preferences for out patient treatment of FN, and demonstrated that out-of-pocket costs, unpaid caregiver time required daily, and probability of return to hospital are all significant attributes when considering outpatient therapy for FN. Adjusted odds ratios [95% confidence intervals] of accepting outpatient treatment for FN were 0.84 [0.75 to 0.95] for each $10 increase in out-of-pocket cost; 0.82 [0.68 to 0.99] for each 1 hour increase in daily unpaid caregiver time; and 0.53 [0.50 to 0.57] for each 5% increase in probability of return to hospital. These results provide important information for clinicians and health care decision makers involved in implementing programs for NHL patients with FN.

Identiferoai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:OTU.1807/65512
Date20 June 2014
CreatorsLathia, Nina
ContributorsWalker, Scott
Source SetsLibrary and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada
Languageen_ca
Detected LanguageEnglish
TypeThesis

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