BNP ≤ 200ng/dl BNP201-400ng/dl BNP >400ng/dl
  ZEEP group N 49 6 5
  Pat with MetS risk factors 15/49 (30.1%) 1/6 (16.7%) 3/5 (60%)
  Pat with complications 8/15 (53.3%) 1/1 (100%) 3/3 (100%)
PEEP group N 54 7 3
  Pat with MetS risk factors 11/54 (20.4%) 3/7 (42.8%) 1/3 (33.3%)
  Pat with complications 0/11 (0%) 2/3 (66.7%) 1/1 (100%)
p Pat with MetS risk factors 0.089 0.293 0.428
  Pat with complications 0.016 0.600 0.533
Table 6: Complications rate and BNP.