Methods 56 cases were treated with ccu .

方法入选56例患者均在ccu接受治疗。

According the grey relational analysis by dividing the better five and the worse five factors , the ccu was affected by the industrial productive index , gdp , stock price index , and net foreign reserve . And the fuzzy neutral was used to test forecasting performance for each currency .

经灰色关联分析结果发现，ccu分别受工业生产指数、国内生产毛额、股价指数、外汇存底等变数影响最深，再将筛选之前、后五变数以模糊类神经验证预测绩效优劣。