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. 2022 Mar 9;22:94. doi: 10.1186/s12872-022-02538-4

Table 4.

Outcomes in patients with and without POT after AADS

Variables All patients n = 492 (%) Without POTn = 437 (%) With POTn = 55 (%) χ2/Z P value
Readmission to ICU 44 (8.9) 30 (6.9) 14 (25.5) 20.731  < 0.001
ICU stay (days) 7 (5, 11) 6 (5, 9) 21 (17, 27) 11.445  < 0.001
Hospital stay (days) 21 (17, 27) 21 (16, 26) 30 (24, 42) 6.521 0.049
Mortality 49 (10.1) 29 (6.6) 20 (36.4) 48.142  < 0.001

AADS, Stanford type A acute aortic dissection surgery; ICU, intensive care unit; POT, postoperative tracheostomy