OT+ (n = 19) | OT- (n = 21) | p value | |
---|---|---|---|
Number of attempts before success (n ± SD) | 1.4 ± 0.67 | 1.5 ± 0.75 | 0.48 |
Help needed (%) | 13.7% | 16.8% | 0.73 |
Failure rate (%) | 3.2% | 6.3% | 0.46 |
Complications | 0 | 0 | |
Perception of stress when placing a CVC (mean / 10) | 4.0 ± 2.2 | 5.0 ± 2.7 | 0.32 |