Table 2.
The univariate analysis of risk factors for failure of subclavian vein catheterization.
| Factors (mean ± SD or number) | Success (1476) | Failure (86) | pa |
|---|---|---|---|
| Age | 55.2 ± 12.5 | 60.8 ± 11.6 | 0.001 |
| Male/female | 768/708 | 43/43 | 0.714 |
| BMI | 24.2 ± 3.7 | 23.6 ± 3.6 | 0.166 |
| Hemoglobin | 130.5 ± 20.3 | 126.9 ± 18.4 | 0.046 |
| Hematocrit | 39.1 ± 5.3 | 38.3 ± 4.9 | 0.080 |
| MCHC | 333.1 ± 14.1 | 330.9 ± 12.7 | 0.095 |
| RDW | 14.0 ± 2.3 | 14.0 ± 2.0 | 0.654 |
| Albumin | 43.3 ± 4.6 | 42.7 ± 4.7b | 0.206 |
| Creatinine | 66.1 ± 15.7c | 67.0 ± 16.4d | 0.554 |
| Puncture needles from different manufacturers (Certofix/Arrow) | 1016/460 | 51/35 | 0.065 |
| Prior subclavian-vein puncture, yes/no | 106/1370 | 8/78 | 0.462 |
BMI, body mass index; MCHC, mean corpuscular hemoglobin concentration; RDW, red cell distribution width.
a
We used Wilcoxon rank-sum test in the analyses of age, BMI, hemoglobin, hematocrit, MCHC, RDW and albumin; t test in the analysis of creatinine; chi-squared tests in the analyses of sex, types of puncture needle, prior history of subclavian-vein puncture.
b
Data were available for 85 patients.
c
Data were available for 1470 patients.
d
Data were available for 85 patients.