Table 3.

Comparison of postoperative complications between the two groups [n (%)]

Group	Cases	Stable angina	Coronary artery restenosis	Arrhythmia	Total incidence
Group A	57	3 (5.26)	2 (3.51)	5 (8.77)	10 (17.54)
Group B	58	1 (1.72)	0 (0.00)	1 (1.72)	2 (3.45)*
X2					6.112
P					0.013

^*indicates P<0.05 compared with group A.