Although the ratio of physicians to total population is about the same in the US and Canada, the US has 33 percent more surgeons per capita. Clearly, this is the reason people in the US undergo 40 persent more operations per capita than do Canadians. The explanation given above rests on an assumption that a. patients in the US do not have a great need for surgery than do patient in Canada b. the population of the US is not larger than that of Canada. c. US patients somes travel to Canada for certain kinds of surgery d. general practitioners in the US do not as a rule examine a patient who is a candidate fore surgery before sending the patient to a surgeon e. there are no unnecessary surgical operations performed in Canada.
[此贴子已经被作者于2006-11-27 22:01:55编辑过] |