Actuarial Model
Mostrando 13-24 de 24 artigos, teses e dissertações.
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13. Initial Evaluation of a Subjective Bayesian Diagnostic System
A computer-aided diagnostic system using subjectively estimated probabilities for symptom—disease relationships is described and applied to a sample of 200 cases divided among hypothyroid, euthyroid, and hyperthyroid diagnoses. The subjective system is evaluated by comparing it with one using actuarial probabilities developed in standard fashion and one us
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14. Projections of health care expenditures as a share of the GDP: actuarial and macroeconomic approaches.
STUDY QUESTION. Can the steady increases in health care expenditures as a share of GDP projected by widely cited actuarial models be rationalized by a macroeconomic model with sensible parameters and specification? DATA SOURCES. National Income and Product Accounts, and Social Security and Health Care Financing Administration are the data sources used in par
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15. Estimating life expectancy using an age-cohort model in Taiwan.
OBJECTIVES: Life expectation is a valuable summary index in public health and actuarial science. The life expectancies published in the vital statistics, however, are derived from the "current" rather than from the "cohort" life table. The former is based on a strong assumption of constant mortality in the population, whereas the latter calls for a recording
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16. A technique for profunda femoris artery reconstruction. Hemodynamic assessment and functional results.
A modified technique of profunda femoris artery reconstruction is presented. In case of occlusion of the superficial femoral artery, the proximal segment of this vessel is rolled over the profunda femoris artery as a patch after an endarterectomy has been performed. This technique has been performed in 110 patients (131 limbs) during the last 14 years. Five-
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17. Prognostic role of oestrogen and progesterone receptors in patients with breast cancer: relation to age and lymph node status.
AIMS: To consider the prognostic role of oestrogen receptor and progesterone receptor status in relation to the age at surgery, length of follow up and lymph node status. METHODS: The study population comprised 977 patients with histologically confirmed breast carcinoma, with a median follow up of nine years. The actuarial life table method was used to test
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18. Aortic valve replacement in the elderly. Risk factors and long-term results.
OBJECTIVE: The current study was undertaken to determine long-term results of aortic valve replacement (AVR) in the elderly, to ascertain predictors of poor outcome, and to assess quality of life. SUMMARY BACKGROUND DATA: Aortic valve replacement is the procedure of choice for elderly patients with aortic valve disease. The number of patients aged 70 and old
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19. Survival with colorectal cancer in ulcerative colitis. A study of 102 cases.
OBJECTIVE: This study was undertaken to correlate postoperative survival of patients with ulcerative colitis-associated colorectal cancer with the stage, configuration, size, and mucin content of the tumor. SUMMARY BACKGROUND DATA: The factors influencing prognosis in colorectal cancer in the general population are well accepted, but less is known about thei
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20. Response to health insurance by previously uninsured rural children.
OBJECTIVE: To examine the healthcare utilization and costs of previously uninsured rural children. DATA SOURCES/STUDY SETTING: Four years of claims data from a school-based health insurance program located in the Mississippi Delta. All children who were not Medicaid-eligible or were uninsured, were eligible for limited benefits under the program. The 1987 Na
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21. Exposure-response analysis of risk of respiratory disease associated with occupational exposure to chrysotile asbestos.
OBJECTIVES: To evaluate alternative models and estimate risk of mortality from lung cancer and asbestosis after occupational exposure to chrysotile asbestos. METHODS: Data were used from a recent update of a cohort mortality study of workers in a South Carolina textile factory. Alternative exposure-response models were evaluated with Poisson regression. A mo
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22. Perioperative blood transfusion and determinants of survival after liver resection for metastatic colorectal carcinoma.
The authors reviewed their institutional experience with liver resection for metastatic colorectal carcinoma to (1) determine whether perioperative blood transfusion affects survival; (2) identify prognostic determinants; and (3) estimate the patient requirement for a prospective randomized trial designed to demonstrate efficacy of liver resection. Two hundr
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23. Aortic root complications in Marfan's syndrome: identification of a lower risk group.
OBJECTIVES: The purpose of this study was to examine clinical and echocardiographic predictors of outcome in a cohort of patients with Marfan's syndrome. BACKGROUND: Serial echocardiographic measurements of aortic root dimensions are an important clinical method for monitoring patients with Marfan's syndrome. However, there are few data on the prognostic imp
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24. Ventricular outflow tract reconstructions with cryopreserved cardiac valve homografts. A single surgeon's 10-year experience.
OBJECTIVE: From January 1, 1985 through December 31, 1994, one surgeon implanted cryopreserved valved homografts into 149 patients--65 since December 1988. This latter series (II) was accomplished in a single hospital, facilitating patient follow-up with biannual echocardiograms. Analysis of these 65 patients is the primary focus of this report; the indicati