62 research outputs found
Valuing Angling on Reservoirs Using Benefit Transfer
Economic assessments are rarely applied to inland recreational fisheries for management purposes, especially when compared to fish, habitat, and creel assessments, yet economic assessments can provide critical information for management decisions. We provide a brief overview of economic value, key terminology, and existing economic techniques to address these issues. Benefit transfer, a technique used to measure economic value when an original analysis is not practicable, is conducted by drawing on existing estimates of economic value in similar contexts. We describe an application of benefit transfer to measure the economic value of several recreational fisheries in Nebraska, USA. We examine two approaches to benefit transfer—value transfer and function transfer—which we demonstrate estimate similar economic values for fishing site access but substantially different economic values for catch rate improvements at some reservoirs. We encourage agencies that are responsible for inland recreational fisheries management to consider economic assessment, especially benefit transfer, as a critical tool in the management toolbox
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Health-related quality of life and oncologic outcomes after surgery in older adults with colorectal cancer
PurposeData regarding changes in functional status and health-related quality of life (HRQOL) before and after surgery are lacking. We identified colorectal cancer patients from the SEER-Medicare Health Outcomes Survey (MHOS) linked database to evaluate the association between HRQOL and survival.MethodsHRQOL survey data captured physical/mental health, activities of daily living (ADLs), and medical comorbidities. Patients who underwent surgery with HRQOL surveys prior to cancer diagnosis and ≥ 1 year after diagnosis were selected. Patient, disease, and HRQOL measures were analyzed in regard to overall survival (OS), disease-specific survival (DSS), and non-DSS.ResultsOf 590 patients included, 55% were female, 75% were Caucasian, and 83% had colonic primary. Disease extent was localized for 52%, regional for 41%, and distant for 7%. Median OS was 83 months. Decreased OS was independently associated with age ≥ 75 (HR 1.7, p < 0.0001), male sex (HR 1.4, p = 0.011), advanced disease (regional-HR 2.0, p < 0.0001; distant-HR 7.0, p < 0.0001), and decreased mental HRQOL (HR 1.4, p = 0.005). Decreased DSS was independently associated with advanced disease (regional-HR 4.1, p < 0.0001; distant-HR 16.5, p < 0.0001) and rectal primary (HR 1.6, p = 0.047). Decreased non-DSS was independently associated with age ≥ 75 (HR 2.2, p < 0.0001), male sex (HR 1.4, p = 0.03), decreased mental HRQOL (HR 1.4, p = 0.02), and increased comorbidities (HR 1.4, p = 0.04).ConclusionsThe potential overall survival benefit of oncologic surgery is diminished by declines in physical and mental health. Early identification of older surgical patients at risk for functional and HRQOL declines may improve survival following colorectal cancer surgery
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