P Wave Duration/P Wave Voltage Ratio Plays a Promising Role in the Prediction of Atrial Fibrillation: A New Player in the Game

Table 3

Laboratory findings.

	New-onset atrial fibrillation (n = 150)	Nonatrial fibrillation (n = 490)	value
WBC (×10^3/L)	7.7 ± 1.9	8.0 ± 2.0	0.103
Hemoglobin (g/dL)	13.5 ± 1.5	13.3 ± 1.5	0.398
Platelet count (×10^3/L)	247.6 ± 58.6	246.4 ± 62.7	0.821
Glucose (mg/dL)	110.0 ± 44.6	112.9 ± 46.7	0.279
Creatinine (mg/dL)	0.9 ± 0.2	0.9 ± 0.2	0.991
Total cholesterol (mg/dL)	205.0 ± 41.3	201.0 ± 42.0	0.390
LDL cholesterol (mg/dL)	125.6 ± 32.1	122.7 ± 32.6	0.384
HDL cholesterol (mg/dL)	46.9 ± 9.5	45.0 ± 9.9	0.010
Triglyceride (mg/dL)	163.0 ± 77.4	158.7 ± 79.0	0.418
AST (U/L)	19.8 ± 7.2	19.6 ± 7.3	0.824
ALT (U/L)	16.9 ± 7.0	17.5 ± 7.4	0.399
TSH (μU/mL)	2.7 ± 1.2	2.7 ± 1.2	0.791
CRP (pg/mL)	2.3 ± 1.0	1.5 ± 1.0	<0.001
BNP (pg/mL)	92.3 ± 56.4	62.8 ± 40.6	<0.001

Data are presented as mean ± SD. ALT: alanine aminotransferase; AST: aspartate aminotransferase; BNP: brain natriuretic peptide; CRP: C-reactive protein; HDL: high-density lipoprotein; LDL: low-density lipoprotein; TSH: thyroid-stimulating hormone; WBC: white blood cell.