Impact of a Low-Pressure Polyurethane Adult Endotracheal Tube on the Incidence of Ventilator-Associated Pneumonia: A before and after Concurrence Study
Table 1
General demographics, comorbidities and other characteristics during the two year analysis.
Characteristic
Before conversion ()
After conversion ()
value
Male sex (%)
174 (63.6)
116 (59.2)
0.275
Admit age (median)
56
57
0.273
Height (inches) (median)
68
67
0.811
Weight (kg) (median)
80.7
76.9
Hospital days (median)
21
20
0.369
ICU days (median)
17
11
Days ventilated with ETT (median)
6
5
0.219
Mortality (%)
54 (19.6)
45 (23.0)
0.383
Comorbidities (%)
Immunodeficiency
28 (10.2)
28 (14.3)
0.175
CAD
68 (24.7)
48 (24.5)
0.953
CHF
41 (14.9)
33 (16.8)
0.571
Asthma
13 (4.7)
7 (3.6)
0.540
COPD
27 (9.8)
29 (14.8)
0.100
Interstitial lung
13 (4.7)
10 (5.1)
0.852
CRF
36 (13.1)
19 (9.7)
0.258
Hepatopathy
30 (10.9)
21 (10.7)
0.947
Encephalopathy
23 (8.4)
12 (6.1)
0.361
Alcohol abuse
44 (16.0)
35 (18.9)
0.415
Smoker
60 (21.9)
53 (27.0)
0.198
Diabetes
77 (28.0)
49 (25.1)
0.489
Cancer
25 (9.1)
18 (9.2)
0.959
Generalized admitting diagnosis (%)
TBI
70 (26.0)
52 (28.0)
Trauma
20 (7.0)
24 (10.0)
Bowel obstruction
4 (1.0)
4 (2.0)
Burn
14 (5.0)
7 (4.0)
Cancer
8 (3.0)
11 (6.0)
Cardiac
59 (22.0)
34 (17.0)
Organ transplant
20 (7.0)
9 (4.0)
Drug overdose
8 (3.0)
6 (3.0)
Other
71 (26.0)
50 (26.0)
*Statistically significant value. Before and after conversion is relative to the introduction of the HVLP PU-cuffed ETT. Patients in the before and after groups comprise Controls plus VAP (4 : 1).
