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Table 3 Results of the regression models; a univariable model and a corrected model (corrected for sex, age, Body Mass Index and American Society of Anesthesia (ASA)-classification score, diabetes, chronic obstructive pulmonary disease (COPD), blood transfusion, smoking, preoperative renal failure hypertension requiring medication and surgical subspecialty

From: Postoperative complications: an observational study of trends in the United States from 2012 to 2018

Complications

Corrected model

Univariate model

Odds Ratio

95% CI

P-value

Odds Ratio

95% CI

P-value

Organ/space surgical site infection

1.05

[1.05–1.06]

 < 0.01

1.05

[1.05–1.06]

 < 0.01

Myocardial infarction

1.01

[1.01–1.02]

 < 0.01

1.01

[1.00–1.02]

0.01

Sepsis/Septic Shock

1.01

[1.01–1.01]

 < 0.01

1.01

[1.01–1.02]

 < 0.01

Pulmonary embolism

0.99

[0.98–0.99]

 < 0.01

0.99

[0.98–1.00]

0.01

Cardiac arrest requiring CPR

0.98

[0.98–0.99]

 < 0.01

0.99

[0.98–0.99]

 < 0.01

CVA/Stroke w. neurological deficit

0.99

[0.98–1.00]

 < 0.01

0.99

[0.98–1.00]

 < 0.01

Pneumonia

0.98

[0.97–0.98]

 < 0.01

0.97

[0.97–0.98]

 < 0.01

Death

0.98

[0.97–0.98]

 < 0.01

0.98

[0.97–0.98]

 < 0,01

Unplanned return to OR

0.98

[0.98–0.99]

 < 0.01

0.97

[0.97–0.98]

 < 0.01

DVT/thrombophlebitis

0.97

[0.97–0.98]

 < 0.01

0.97

[0.97–0.98]

 < 0.01

Urinary tract infection

0.96

[0.95–0.96]

 < 0.01

0.96

[0.96–0.96]

 < 0.01

Acute renal fail

0.96

[0.95–0.96]

 < 0.01

0.95

[0.94–0.96]

 < 0.01

Superficial surgical site infection

0.94

[0.94–0.94]

 < 0.01

0.94

[0.94–0.94]

 < 0.01

Deep surgical site infection

0.92

[0.92–0.93]

 < 0.01

0.90

[0.90–0.91]

 < 0.01

  1. Odds ratios (OR) and 95% confidence intervals and p-values are listed. Odds Ratio’s represent results from the logistical regression model associating the occurrence of a given complication with study year whilst correcting for confounders
  2. DVT deep venous thrombosis, CVA cerebrovascular accident, OR operating room