( @ ) There were no significant differences in mortality -LSB- @ % ( @/@ ) vs. @ % ( @/@ ) , ( @ ) = @ , P = @ -RSB- , hospital day ( @ days vs. @ days , t = @ , P = @ ) , catheter retention time ( @ days vs. @ days , t = @ , P = @ ) and cost of hospitalization ( @ thousand Yuan : @ vs. @ , t = @ , P = @ ) between intervention group and control group .