The survival rate is weighed in cancer prognosis unsuitable to use 5

The survival rate is weighed in cancer prognosis unsuitable to use 5
Generally prove with increase of the survival rate of 5 now the distant view of the cancer patient is improved to some extent. But according to an article of " magazine of American medical association ", the improvement of the short-term survival rate does not mean the average life span is longer. While treating cancer, the survival rate is misled as weighing the index of the whole process in 5, it is the change of the cancer diagnostic method that the change of the survival rate may react even more in 5. The researcher employs administration's database of U.S.A.'s health to compare the survival rate, mortality, morbidity of the cancer patient among 1950-1954 and 1989-1995 year. Analyze that includes 20 kinds of solid tumours, the mortality of 12 kinds of tumour patients among them drops, but these are improved and had nothing to do with the survival rate of 5 years. A lot of cases show because increase of 5 survival rate is not treated but because the patient's cause ahead of time of diagnosis. Certainly not deny there is progress in the treatments of a lot of cancers. Putting rate alive into clinical research in 5, the comparative therapeutic effect is an appropriate index, but not enough to judge condition progress. May be because of two reasons that survival rate and mortality had nothing to do in 5. First, the patient is diagnosed but still in the same time slot death in early days, no matter it diagnoses time. Or: Because the increase of the survival rate calculated the false appearance obtained from the time point that the disease process is earlier in 5. A lot of patients belong to this kind of situation. Another reason is to diagnose that makes a lot of pathological changes that might not develop into cancer must use torsion in early days, how about no matter treat. It is generally acknowledged that diagnoses cancer early, the earlier treat, the patient will survive longer. But discover mortality has not dropped. Another unexpected discovery was 5 there is close ties while changing in survival rate and morbidity. These results impel people to ponder over the diagnosis problem of disease and remind researcher that present survival rate statistics may exist and mislead better. 123 websites offer health exclusively, if want to reprint, please indicate the source

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