Table 2 Risk factors for supraventricular arrhythmias and their statistical significance. SA(+): patients with postoperative supraventricular arrhythmias. SA(-): patients with no postoperative supraventricular arrhythmias. p values less than 0.05 are statistically significant.

Male (n:166)

30/166

136/166

0.416

Female (n:33)

7/33

26/33

Age > 65 years (n:65)

22/65

43/65

<0.001

Age < 65 years (n:134)

7/134

127/134

Hypertension (+) (n:63)

11/63

52/63

0.473

Hypertension (-) (n:136)

26/136

110/136

Diabetes Mellitus (+) (n:28)

5/28

23/28

0.576

Diabetes Mellitus (-) (n:171)

32/171

139/171

Tobacco (+) (n:165)

31/165

134/165

0.548

Tobacco (-) (n:34)

6/34

28/34

Beta-blockers preop (+) (n:25)

4/25

21/25

0.513

Beta-blockers preop (-) (n:174)

32/174

142/174