Total AF free Not AF free P-value
NT-proBNP at baseline (n=810) Mean ±SD 589 (SD 1896) pg/ml 517 (SD 1490) pg/ml 1339 (SD 4178) pg/ml <0.001
  Range 9-33927 pg/ml 9-19095 pg/ml 27-33927 pg/ml  
  Median 134 pg/ml 124 pg/ml 270 pg/ml  
NT-proBNP after 24 hours (n=652) Mean ±SD 2150 (SD 2810) pg/ml 1943 (SD 2452) pg/ml 4240 (SD 4735) pg/ml <0.001
  Range 45-20653 pg/ml 45-20653 pg/ml 312-19497 pg/ml  
  Median 1318 pg/ml 1244 pg/ml 2256 pg/ml  
NT-proBNP after 72 hours (n=544) Mean ±SD 1797 (SD 4289) pg/ml 1377 (SD 2057) pg/ml 7675 (SD 13568) pg/ml <0.001
  Range 17-25507  (of 81810) pg/ml 17-25507 pg/ml 214-24119 (of 81810) pg/ml  
  Median 885 pg/ml 809 pg/ml 3224 pg/ml  
Data are presented as mean with their SD between parentheses, range or median. AF: Atrial Fibrillation. NT-proBNP: N-terminal pro-Brain Natriuretic Peptide. P-value between mean NT-proBNP values of AF free and not AF free patients. P-value between mean NT-proBNP values.
Table 2: NT-proBNP levels.