Table 5

Factors associated with duration of mechanical ventilation longer than median (14 days) in patients with (cases) and without (controls) ventilator-associated tracheobronchitis

Factor
Univariate analysis
Multivariate analysis



Number of patients (n = 110)
Number of patients with MV duration ≥ 14 days (%)
P
OR (95% CI)
P

Renal failure on ICU admission
          Yes
24
18 (75)
0.002
4.9 (1.6–14.6)
0.004
          No
86
34 (39)



Tracheostomy
          Yes
17
13 (76)
0.009
4.0 (1.1–14.5)
0.032
          No
93
39 (41)



VAT related to multidrug-resistant bacteria
          Yes
31
22 (70)
0.002
-
-
          No
79
30 (37)



VAT
          Yes
55
35 (63)
0.001
3.5 (1.5–8.3)
0.004
          No
55
17 (30)




CI, confidence interval; ICU, intensive care unit; MV, mechanical ventilation; OR, odds ratio; VAT, ventilator-associated tracheobronchitis.

Nseir et al. Critical Care 2005 9:R238   doi:10.1186/cc3508