Table 5 Comparison of secondary outcomes after off-pump coronary artery bypass grafting between the study groups

Acute kidney injury^a

67 (29.3%)

272 (27.4%)

34 (19.7%)

0.066

Newly initiated renal replacement therapy

7 (3.1%)

25 (2.5%)

4 (2.3%)

0.874

Prolonged intubation^b

25 (11%)

43 (4.3%)

5 (2.9%)

< 0.001

Supplemental oxygen therapy after extubation (hour)

83 (51–120)

61 (35–94)

53 (33–80)

< 0.001