|
Characteristics of the patients of groups A and B as a function of confounding factors |
||||
| Number of patients |
p* |
|||
|
|
||||
| Total |
By procedure |
|||
| A |
B |
|||
|
|
||||
| Number of PVCs |
248 |
130 |
118 |
|
| Sex ratio (M/F) |
155/93 |
84/46 |
71/47 |
0.47 |
| Age > 70 years |
88 |
42 |
46 |
0.27 |
| Immunosuppression |
62 |
32 |
30 |
0.88 |
| Insertion site |
||||
| Back of the hand |
35 |
20 |
15 |
0.91 |
| Elbow |
17 |
8 |
9 |
|
| Forearm |
190 |
99 |
91 |
|
| Other |
6 |
3 |
3 |
|
| Nature of the PVC |
||||
| Polyurethane |
150 |
79 |
71 |
0.79 |
| Polyvinyl chloride |
57 |
28 |
29 |
|
| Teflon |
41 |
23 |
18 |
|
| Duration of catheterisation |
||||
| > 24 h and < 48 h |
248 |
130 |
118 |
0.87 |
| > 48 h and < 72 h |
203 |
108 |
95 |
|
| 72 h |
119 |
63 |
56 |
|
| Mean duration |
> 48 h and < 72 h |
> 48 h and < 72 h |
> 48 h and < 72 h |
|
| No. manipulations > 4/day |
52 |
29 |
23 |
0.58 |
| Solutes perfused |
||||
| Antibiotics |
85 |
45 |
40 |
0.90 |
| Anticancer drugs |
57 |
30 |
27 |
0.97 |
| Lipids |
9 |
5 |
4 |
0.85 |
| Blood products |
7 |
5 |
2 |
0.31 |
|
*Chi squared was calculated with values obtained for groups A and B. | ||||
van der Mee-Marquet for the Bloodstream infection Study Group of the Relais Régional d'Hygiène Hospitalière du Centre BMC Anesthesiology 2007 7:1 doi:10.1186/1471-2253-7-1 |
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