Document Classification

Section Type: RESULTS

Text: The ejection fractions of the off-pump coronary artery bypass grafting group versus the off-pump coronary artery bypass grafting plus stem cell transplantation group were as follows : preoperative, 30. 7 % + / - 2. 5 % versus 29. 4 % + / - 3. 6 % ; 1 month, 36. 4 % + / - 2. 6 % versus 42. 1 % + / - 3. 5 % ; 3 months, 36. 5 % + / - 3. 0 % versus 45. 5 % + / - 2. 2 % ; and 6 months, 37. 2 % + / - 3. 4 % versus 46. 1 % + / - 1. 9 % (P <. 001).