TABLE III.
Cox-Regression Analysis of Potential Risk Factors for Infection Associated With Central Venous Catheter Placement
| Risk factor | Infection
|
Hazard ratio (95% CI) | P-value | |
|---|---|---|---|---|
| No | Yes | |||
| Body mass index | ||||
| <25 | 148 | 15 | ||
| ≥25 | 7 | 2 | 2.4 (0.5–10.5) | 0.24 |
| ANC at placement (/mm3) | ||||
| <500 | 60 | 10 | 0.4 (0.2–1.2) | 0.11 |
| ≥500 | 95 | 7 | ||
| Febrile during last 24 hours | ||||
| No | 111 | 15 | 0.3 (0.1–1.5) | 0.17 |
| Yes | 44 | 2 | ||
| Positive culture prior to surgery | ||||
| No | 149 | 17 | NA | NA |
| Yes | 6 | 0 | ||
| Value of Glucose (g/dl) | Median | 97 | ||
| Range | 11–245 | 0.9 (0.9–1.0) | 0.57 | |
| Age (years) | Median | 4 | ||
| Range | 0.01–16.2 | 1.0 (0.9–1.1) | 0.39 | |
| Body mass index | Median | 16 | ||
| Range | 10–33 | 1.0 (0.9–1.1) | 0.53 | |
| ANC at placement (/mm3) | Median | 600 | ||
| Range | 0–40,885 | 1.0 (0.9–1.0) | 0.15 | |
| Withdraw occlusion | ||||
| No | 138 | 13 | 2.4 (0.8–7.5) | 0.11 |
| Yes | 17 | 4 | ||
| Number of CVC lumen | ||||
| Single lumen | 148 | 17 | NA | NA |
| Double lumen | 7 | 0 | ||
| Vein used | ||||
| Left subclavian vein | 104 | 12 | 0.8 (0.3–2.4) | 0.76 |
| Right subclavian vein | 51 | 5 | ||
CNC, central venous catheter; NA, not applicable; ANC, absolute neutrophil count.