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271.
In the SEER database, it is relatively easy to identify secondary cancers that follow an initial diagnosis of cancer. However, the SEER public-use data does not explicitly capture relapse of the initial cancer. One can assume that organ-confined prostate cancer treated by radical prostatectomy will show no evidence of disease after treatment. Death due to prostate cancer in such cases can be assumed to follow a relapse of previously occult metastatic disease. We devised an estimate of the timing of these relapses and tabulated rates for both new primaries and relapses following radical prostatectomy for organ-confined prostate cancer. 相似文献
272.
Actuarial life-table analysis has long been used by life insurance medical directors for mortality abstraction from clinical studies. Ironically, today's life actuary instead uses pivot tables to analyze mortality. Pivot tables (a feature/function in MS Excel) collapse various dimensions of data that were previously arranged in an "experience study" format. Summary statistics such as actual deaths, actual and expected mortality (usually measured in dollars), and calculated results such as actual to expected ratios, are then displayed in a 2-dimensional grid. The same analytic process, excluding the dollar focus, can be used for clinical mortality studies. For raw survival data, especially large datasets, this combination of experience study data and pivot tables has clear advantages over life-table analysis in both accuracy and flexibility. Using the SEER breast cancer data, we compare the results of life-table analysis and pivot-table analysis. 相似文献
273.
We test the relationship between the current account and fiscal policy for a group of small open developing economies with fixed exchange rates some of which are oil exporters. Specifically, we test the viewpoint of a Ricardian infinite-horizon representative agent model in which lower public savings are met by equal increases in private savings, and as a result the current account does not respond to the changes in government spending, against a Keynesian’s conventional viewpoint in which a fall in public savings has an adverse effect on the current account balance. Unlike the evidence from flexible exchange rate economies provided by many authors such as Rosensweig and Tallman (Econ Inq 31(4):580–594, 1993), Erceg et al. (Int Finance 8(3):363–397, 2005) and Saleh et al. (South Asia Econ J 6(2):221–239, 2005), the evidence from a panel data analysis and Granger-causality test of these fixed exchange-based countries supports the conventional theory of positive relationship between fiscal and external balances, with causality running from the former to the latter, in oil countries, whereas it supports the Ricardian view for non-oil countries. 相似文献