Table 3 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 |