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25 August 2021: Clinical Research

“Obesity Paradox” in Acute Respiratory Distress Syndrome Among Patients Undergoing Cardiac Surgery: A Retrospective Study

Yan Liu 1ABCDEFG , Man Song 1BCDF , Lixue Huang 2BCDF , Guangfa Zhu 13ACG*

DOI: 10.12659/MSM.931808

Med Sci Monit 2021; 27:e931808

Supplementary Table 2 Univariate analysis for development of acute respiratory distress syndrome.

CovariateStatisticsOR (95% CI)P value
Age, years58.6±13.51.0 (1.0, 1.0)0.684
Smoking index450.0 (210.0–800.0)1.0 (1.0, 1.0)0.081
EF value before surgery, %60.2±9.61.0 (1.0, 1.0)0.400
Hemoglobin level before surgery, g/l133.2±18.81.0 (1.0, 1.0)
Albumin level before surgery, g/l40.6±5.20.9 (0.9, 0.9)
APACHE II value16.7±3.81.2 (1.2, 1.3)
Duration of surgery, hours4.7±1.91.6 (1.4, 1.7)
Blood loss, ml600.00 (400.00–1000.00)1.0 (1.0, 1.0)
Transfusion of red blood cells, ml400.00 (200.00–800.00)1.0 (1.0, 1.0)
Transfusion of plasma, ml0.00 (0.00–200.00)1.0 (1.0, 1.0)
EF value after surgery, %47.9±22.71.0 (1.0, 1.0)0.008
Gender, %
 Male690 (68.3%)1.0
 Female320 (31.7%)1.1 (0.8, 1.5)0.735
History of cardiac surgery, %
 No976 (96.6%)1.0
 Yes34 (3.4%)4.8 (2.4, 9.7)
History of hypertension, %
 No557 (55.1%)1.0
 Yes453 (44.9%)1.4 (1.1, 1.9)0.023
History of diabetes, %
 No839 (83.1%)1.0
 Yes171 (16.9%)1.3 (0.9, 2.0)0.155
History of AMI, %
 No795 (78.7%)1.0
 Yes215 (21.3%)1.2 (0.9, 1.8)0.249
Emergency surgery, %
 No959 (95.0%)1.0
 Yes51 (5.0%)8.6 (4.7, 15.6)
Type of surgery, %
 Isolated valvular surgery or isolated GABG surgery766 (75.8%)1.0
 Valvular combined with CABG surgery55 (5.4%)6.6 (3.7, 11.6)
 Aortic surgery64 (6.3%)9.3 (5.4, 16.0)
 Others125 (12.4%)2.2 (1.4, 3.4)
EF – ejection fraction; COPD – chronic obstructive pulmonary disease; AMI – acute myocardial infarction; CABG – coronary artery bypass grafting; APACHE – acute physiology and chronic health evaluation; ARDS – acute respiratory distress syndrome; OR – odds ratio.

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Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750