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TOPIC: ARGUMENT51 - The following appeared in a medical newsletter.
"Doctors have long suspected that secondary infections may keep some patients from healing quickly after severe muscle strain. This hypothesis has now been proved by preliminary results of a study of two groups of patients. The first group of patients, all being treated for muscle injuries by Dr. Newland, a doctor who specializes in sports medicine, took antibiotics regularly throughout their treatment. Their recuperation time was, on average, 40 percent quicker than typically expected. Patients in the second group, all being treated by Dr. Alton, a general physician, were given sugar pills, although the patients believed they were taking antibiotics. Their average recuperation time was not significantly reduced. Therefore, all patients who are diagnosed with muscle strain would be well advised to take antibiotics as part of their treatment."
The argument presented above tries to convince us that it is the antibiotics that cure the muscle strain. But the conclusion is based on a untenanted study and some oversimplified and unwarranted reasons.
The threshold problem in this argument is that the two groups of study about the treat of different patients lacks of comparison. First, we are not provided any information about the background of the two groups of patients. Were they have the same extent of severe muscle strain?Were they all male?Were they all middle-aged men?Were they all have identical constitution? Without informed about the same condition of these two groups of patients, I cannot be convinced that the results of those two groups is reliable. Likewise, the two doctors whom are come from different occupations are quite possible to adopt different measures to heal them leading to different effects, which renders the study open to doubt.
Moreover, even assuming that the study's process is scientifically right, the results of the treatment is confusing in two ways: At first, it is said that the first group's recuperation time was 40 percent quicker than typically expected. It is quite possible that the original expectation for their recuperation time is much longer than the second group. Thus, it is unconvincing when it compare to the result of the second goup. Secondly, the word" average" requires our attention. We may wander that in the second groups there are one or two special person, who is allergic with the sugar pill so that it accelerates the muscle strain pain and then prolongs the recuperation time to more month. Although the other patients are actually recover from the muscle strain sooner than the first group, due to the one or two , the average recupertion time was longer than first group.
Furthermore, granted that it is a fact that all second group recover from there illness quicker than the second group, there is no evidence provided to substantiate that it is the antibiotics that lead to the curative effect. It is entirely possible that the cure of muscle strain is related to the food that contains certain calcium which plays a crucial role in healing. And it is equally possible that the patients take other pills beyond the pills given by doctors. Any of these scenarios, if true, may cast considerable doubt on the conclusion that it is the antibiotics that heal the patients.
Last but not the least, the final conclusion that all patients who are suffered from muscle strain would be advised to take antibiotics as part of their treatment is totally unreasonable, for it may be not suitable for other not severe injured patients. Unless the antibiotics are proved to be effective to all the muscle strain patients, hardly could I agree on the author’s sweeping generation.
In sum, the conclusion is not compelling due to problematic reasons. To undergird it, a thorough study should made to concerning the real efficiency of antibiotics to all kinds of muscle strain patent, which the arguer fail to provide.
[ 本帖最后由 tly823 于 2007-3-5 16:38 编辑 ] |
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