Table 2 Comparison of serum potassium and magnesium levels between patients with postoperative atrial fibrillation and those without

K Adm (mmol/L)

Mean ± SD

4.113 ± 0.6597

4.183 ± 0.7064

− 0.526

0.601

K 12 h (mmol/L)

Mean ± SD

4.137 ± 0.5172

4.185 ± 0.6417

− 0.423

0.674

K 24 h (mmol/L)

Mean ± SD

4.089 ± 0.4766

4.115 ± 0.6684

− 0.219

0.827

K 36 h (mmol/L)

Mean ± SD

4.196 ± 0.4235

4.354 ± 0.7218

− 1.289

0.203

K 48 h (mmol/L)

Mean ± SD

4.168 ± 0.4477

4.259 ± 0.7593

− 0.702

0.485

K 60 h (mmol/L)

Mean ± SD

4.201 ± 0.4126

4.051 ± 0.6353

1.374

0.175

K 72 h (mmol/L)

Mean ± SD

4.306 ± 0.2966

4.268 ± 0.6762

0.342

0.734

Mg Adm (mg/dL)

Mean ± SD

2.3652 ± 0.5771

2.2737 ± 0.68948

0.732

0.467

Mg 24 h (mg/dL)

Mean ± SD

2.3735 ± 0.54769

2.34 ± 0.59269

0.303

0.763

Mg 48 h (mg/dL)

Mean ± SD

2.4832 ± 0.5218

2.3522 ± 0.53306

1.294

0.2

Mg 72 h (mg/dL)

Mean ± SD

2.5156 ± 0.50198

2.4241 ± 0.4926

0.964

0.338