Table 2. Operative variables.

Variables	All patients (n=149)
Urgency of operation
Elective	112 (75.2)
Urgent	29 (19.5)
Emergent	8 (5.3)
Number of grafts	3.0±0.9
Left internal mammary artery to left anterior descending artery graft	140 (94.0)
Number of venous grafts	2.1±0.9
Aortic cross clamp time (min) (n=117)	50.1±14.4
Cardiopulmonary bypass time (min) (n=138)	95.3±26.8

Values for parametric continuous variables are expressed as mean ± standard deviation. Values for categorical variables are expressed as numbers (%).