Table 5.
Univariate analysis of the confounding variables associated with central catheter-related infection
| Variable | CRLI: yes (n = 139) | CRLI: no (n = 1507) | P value | CRBSI: yes (n = 58) | CRBSI: no (n = 1588) | P value |
|---|---|---|---|---|---|---|
| Age (years) | 52 (3–94) | 51 (8–86) | 0.657 | 51 (16–84) | 51 (3–94) | 0.541 |
| Sex, % male | 79.9 % (111) | 77.2 % (1163) | 0.469 | 81.0 % (47) | 77.3 % (1227) | 0.500 |
| ICU length of stay (days) | 35 (0–148) | 21 (0–190) | <0.001 | 32 (4–148) | 22 (0–190) | 0.033 |
| Catheter insertion duration (days) | 16 (1–53) | 11 (1–99) | <0.001 | 17.5 (5–37) | 12 (1–99) | <0.001 |
| Injury Severity Score | 25 (16–50) | 25 (16–75) | 0.953 | 25 (16–50) | 25 (16–75) | 0.730 |
| Catheter insertion sites | 0.009 | 0.316 | ||||
| Subclavian | 65.5 % (91) | 76.3 % (1,150) | 74.1 % (43) | 75.4 % (1198) | ||
| Internal jugular | 23.7 % (33) | 14.5 % (218) | 20.7 % (12) | 15.1 % (239) | ||
| Femoral | 10.8 % (15) | 9.2 % (139) | 5.2 % (3) | 9.5 % (151) | ||
| Catheter typea | 0.266 | 0.036 | ||||
| Single-lumen | 4.3 % (6) | 5.8 % (87) | 1.7 % (1) | 5.8 % (92) | ||
| Double-lumen | 34.5 % (48) | 40.1 % (605) | 27.6 % (16) | 40.1 % (637) | ||
| Triple-lumen | 61.2 % (85) | 54.1 % (815) | 70.7 % (41) | 54.1 % (859) | ||
| Total parenteral nutrition | <0.001 | <0.001 | ||||
| Yes | 82.0 % (114) | 60.6 % (904) | 91.4 % (53) | 60.8 % (965) | ||
| No | 18.0 % (25) | 40.0 % (603) | 8.6 % (5) | 39.2 % (623) | ||
| Transfusion | 0.830 | 0.657 | ||||
| Yes | 74.1 % (103) | 73.3 % (1,104) | 75.9 % (44) | 73.2 % (1,163) | ||
| No | 25.9 % (36) | 26.7 % (403) | 24.1 % (14) | 26.8 % (425) |
Data are presented as median (range) or % (n)
CRLI catheter-related local infection, CRBSI catheter-related bloodstream infection, ICU intensive care unit
aCatheter types are classified according to the number of catheter lumens