Table 2 Catheterization related variables
From: Effect of bevel direction on the success rate of ultrasound-guided radial arterial catheterization
Parameter | Bevel-Up group (n =102) | Bevel-down group (n = 102) | 95 % CI of mean | Odds ratio | P value |
|---|---|---|---|---|---|
Attempts | |||||
First attempt | 73 (71.6 %) | 86 (84.3 %) | 0.6216-0.7642/ | 2.14 | 0.028 |
0.7603-0.9011 | |||||
Second attempt | 23 (22.5 %) | 14 (13.7 %) | 0.1552-0.3157/ | 1.83 | 0.103 |
0.0836-0.2173 | |||||
Third attempt | 6 (5.9 %) | 2 (2.0 %) | 0.02720.1224/ | 3.13 | 0.151 |
0.0054-0.0687 | |||||
overall | 102 (100 %) | 102 (100 %) | 1.00 | ||
Mean cannulation time(sec) | 35.9 ± 7.6 | 33.3 ± 6.3 | 34.4-37.4/ | 0.011 | |
32.1-34.6 | |||||
Posterior wall hematoma | 22 (21.6 %) | 11(10.8 %) | −0.0009 - 0.215 | 2.28 | 0 .0365 |