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Waiting times for physician appointments have been used in past studies as a measure of access to, or excess demand pressure on, local ambulatory care systems. This paper offers an alternative view—that short appointment delays are one of several types of amenities produced by physicians in combination with health services. Empirical evidence is presented that illuminates some previously unknown relationships between appointment delays, patient diagnosis, site of care, and family income. A model is developed with the capability of predicting short-run responses to changes in demand for physicians' services. The model and empirical evidence are used as the basis for interpreting recent experience in Canada with its system of national health insurance (NHI) and for predicting potential consequences regarding the production of amenities of NHI in the US.This research has been supported in part by a grant (HS—00825) from the Center for Health Services Research, US Department of Health, Education, and Welfare, to the University of Florida. We are indebted to John B. Wayne and to Paula Sloan for their assistance and to University of Florida colleague Gary Shannon for comments on an earlier draft. 相似文献
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Sertraline (CAS 79617-96-2) is a relatively safe medication for patients suffering from depression. Data reporting the postmortal distribution of sertraline and desmethylsertraline remain rare as well as reports of risks of side effects following ingestion of the drug. In a case of a young woman found dead in her flat sertraline and desmethylsertraline were identified and quantified in body fluids and tissues by gas chromatography/mass spectrometry and high performance liquid chromatography with diode array detection after alkaline extraction. Sertraline and its desmethyl metabolite were found in the peripheral blood in levels of 0.15 mg/l and 0.20 mg/l, concentrations in liver and bile were markedly higher. By exclusion of other reasons for death a lethal sertraline intoxication was decided. Sertraline is suggested to possess a low inherent toxicity, however, a risk of side-effects which may occur in single cases even under moderate dosages should be considered. 相似文献