Table 3 Multivariate analysis; VS Vasofix® Safety, IS Introcan® Safety; adult participants only; All data analyzed as categorical variables
Multivariate Analysis (Risk of Cannulation Failure) | n | P | Odds Ratio | 95% Confidence Interval |
|---|---|---|---|---|
Patient Variables | ||||
Age | 1157 | .74 | 0.998 | 0.988 … 1.008 |
Gender, female (0) / male | 619/538 | .18 | 1.275 | 0.893 … 1.820 |
Body Mass Index | ||||
< 18.5 kg/m2 | 29 | .54 | 0.691 | 0.210 … 2.279 |
18.5 to 24.9 kg/m2 | 514 | .07 | ||
25 to 29.9 kg/m2 | 391 | .92 | 0.980 | 0.669 … 1.434 |
≥ 30 kg/m2 | 223 | .01 | 0.557 | 0.351 … 0.885 |
Venous Condition | ||||
Good (0) | 787 | < .001 | ||
Moderate | 295 | < .001 | 2.837 | 1.945 … 4.138 |
Poor | 75 | < .001 | 10.780 | 5.665 … 20.512 |
Site of Cannulation | ||||
Back of hand (0) | 887 | .43 | ||
Forearm | 184 | .37 | 1.230 | 0.781 … 1.938 |
Antecubital fossa | 71 | .23 | 1.494 | 0.776 … 2.876 |
Other | 15 | .32 | 1.843 | 0.552 … 6.152 |
Operator Variables | ||||
Operator Function | ||||
Nurses (0) | 701 | .02 | ||
Physicians | 397 | .005 | 1.756 | 1.188 … 2.597 |
Others | 59 | .98 | 0.989 | 0.445 … 2.199 |
Experience | ||||
> 3 years (0) / < 3 years | 886/271 | .21 | 1.311 | 0.858 … 2.003 |
Needle Reinsertion | ||||
Pre-puncture, No (0) / Yes | 891/266 | < .001 | 7.663 | 5.353 … 10.970 |
Post-puncture, No (0) / Yes | 1106/51 | < .001 | 15.401 | 6.271 … 37.824 |
Product Variables | ||||
Catheter type, VS (0) / IS | 587/570 | < .001 | 2.996 | 2.134 … 4.207 |
Catheter size | ||||
≤ 16 G | 32 | .03 | 0.208 | 0.050 … 0.867 |
18 G (0) | 652 | .003 | ||
20 G | 468 | .03 | 1.478 | 1.044 … 2.093 |
≥ 22 G | 5 | .046 | 10.895 | 1.049 … 113.181 |