In the CP group , 8.0 % and 5.0 % of patients had an increase in CK-MB 1 to 3 times and > 3 times , respectively , which were significantly lower than that of the control group ( 19.0 % and 9.0 % , respectively ) ; 12.0 % and 10.0 % of patients had an increase in TnI 1 to 3 times and > 3 times , respectively , which were significantly lower than that of the control group ( 21.0 % and 18.0 % , respectively ) .