The research of the fractal nature between costs and efficacy in the brain vascular disease

Three hundred patients were randomly selected as the research object,of which 150 were on chinese medical treatment; rehabilitation of 150 people was recorded for each patient before and after treatment by the three outcome measures (fugle-meyer baseline,nhiss baseline,and baseline bi),coupled with the treatment process spent in a variety of costs (mainly medicine costs,medicine,laboratory test,treatment,bed,care,diagnosis and examination fees,inspection fees). by combining the meaning of data with its practicality we get the definition of the efficacy. via using the softwares of excel,matlab,and eviews for data processing and fitting,it can be found that there exsists the fractal nature between efficacy and cost of treatment during the cerebral diseases. then combined with the fractal theory,the application of chaotic time series,and two fractal indexes,the largest lyapunov exponent and correlation dimension were extracted under two conditions of chinese medical treatment and rehabilitation,and in the comparison of significance the brain vascular disease in traditional chinese medicine treatment and rehabilitation was found. there were significant difference in fractal indicators of the time series of effective unit cost. at the same time,there were similar significant differences in the three outcome measures. this paper studied the fractal nature of cerebrovascular disease between the efficacy and cost and draw some fractal relationships and conclusions,so as to find better medical treatment to provide a theoretical basis for the hope of the treatment of cerebral vascular disease to provide some valuable reference. © copyright 2012 shuo sun and xiaocui xing.