The Role of BNP and CRP in Predicting the Development of Atrial Fibrillation in Patients Undergoing Isolated Coronary Artery Bypass Surgery

Table 2

CRP and BNP levels in pg/mL (mean, 95% CI) by postoperative AF status.

Biomarker (pg/mL)	AF (𝑛=44)	Non-AF (𝑛=81)	𝑃 value
CRP preop.	4.8 (1.9–7.8)	3.95 (2.4–5.5)	0.43
CRP postop.	114.56 (93–137)	128 (105–152)	0.94
BNP preop.	629 (334–924)	373 (312–435)	0.019
BNP postop.	1032 (1094–1369)	705 (588–823)	0.065

CRP: C-reactive protein; BNP: brain natriuretic peptide; preop: preoperative; postop: postoperative; other abbreviations are like in Table 1.