Skip to main content

Advertisement

Table 3 Analyses of primary and secondary outcome variables before propensity score matching

From: Metformin therapy and postoperative atrial fibrillation in diabetic patients after cardiac surgery

Variable Metformin (n = 635) 49.5% Non-metformin (n = 648) 50.4% p value
Overall (CABG or valve surgery)
 New atrial fibrillation 149 (23.5%) 172 (26.5%) 0.2088
 Acute renal failure This is defined as 3-fold increase in creatinine from baseline on admission) 3 (0.5%) 5 (0.8%) 0.7258
 30-day readmission with arrhythmia 4 (0.6%) 3 (0.5%) 0.7232
CABG only N = 408 N = 405  
 New atrial fibrillation 81 (19.9%) 91 (22.5%) 0.3707
 Acute renal failure 0 (0.0%) 2 (0.5%) 0.2479
 30-day readmission with arrhythmia 2 (0.5%) 2 (0.5%) 0.9999
Valve surgery only N = 143 N = 142  
 New atrial fibrillation 38 (26.6%) 39 (27.5%) 0.8655
 Acute renal failure 2 (1.4%) 0 (0.0%) 0.4982
 30-day readmission with arrhythmia 1 (0.7%) 0 (0.0%) 0.9999