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Table 4 Clinical outcomes in patients with and without POP after AADS

From: Development and validation of a risk prediction model for postoperative pneumonia in adult patients undergoing Stanford type A acute aortic dissection surgery: a case control study

Variables Without POP n = 322 (%) With POP n = 170 (%) χ2/Z P value
Mechanical ventilation (hours) 45.7 (35.3, 66.3) 111.1 (79.0, 185.0) 13.051  < 0.001
Reintubation 10 (3.1) 62 (36.5) 99.145  < 0.001
Tracheostomy 5 (1.6) 50 (29.4) 86.967  < 0.001
Readmission to ICU 18 (5.6) 26 (15.3) 12.866  < 0.001
ICU stay (hours) 114.4 (88.7, 159.1) 301.9 (202.0, 454.5) 14.232  < 0.001
Hospital stay (days) 19 (16, 23) 28 (22, 38) 9.570  < 0.001
Mortality 8 (2.5) 41 (24.1) 58.064  < 0.001
  1. AADS Stanford type A acute aortic dissection surgery; ICU intensive care unit; POP postoperative pneumonia