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Table 3 Outcomes of oral infection indicators

From: Application of double-sleeve endotracheal tube in infection control for icu patients: a randomized controlled trial

Outcome

DETT group

(n = 58)

ETT group

(n = 57)

Z/χ2

p value

Primary outcome

    

VAP, n(%)

5(8.62)

13(22.81)

4.382

0.036

Secondary outcomes

    

Total number of biofilm formation, n(%)

19(32.76)

31(54.39)

5.472

0.019

Biofilm formation: Endotracheal intubation, n(%)

12(20.69)

21(36.84)

  

Biofilm formation: Bite block, n(%)

7(12.07)

10(17.54)

  

Bacterial count [CFU/mL, M(P25, P75)]

4.27(3.63,5.31)×108

7.16(6.05,7.67)×108

-7.362

<0.001

BOAS [scores, M(P25, P75)]

5.00(5.00,5.00)

5.00(5.00,6.00)

-2.774

0.006

Plaque Index [scores, M(P25, P75)]

0.00(0.00,1.00)

0.00(0.00,1.50)

-0.195

0.845