Table 2.
Trial results
| Technique | P Value | Relative Risk (95% CI) | ||
|---|---|---|---|---|
| DNTP (n = 65) | AD (n = 66) | |||
| Primary outcome | ||||
| First-pass success without posterior wall puncture, % | 35 (53.8) | 29 (44.6) | 0.26a | 1.22 (0.86–1.72) |
| Secondary outcomes | ||||
| First-pass success, % | 35 (53.8) | 39 (59.1) | 0.54a | 0.90 (0.63–1.27) |
| 10-min overall success, % | 56 (86.2) | 53 (80.3) | 0.37a | 1.22 (0.82–1.81) |
| Median cannulation time (IQR), s | 79.7 (54–109) | 47.6 (25–104) | 0.007 b | |
| Posterior wall puncture, % | 19 (29.2) | 37 (56.1%) | 0.002 a | 0.56 (0.42–0.82) |
| Number of skin punctures | 0.86 a | |||
| 1 | 50 | 52 | ||
| 2 | 3 | 1 | ||
| ≥ 3 | 12 | 13 | ||
Abbreviation: IQR interquartile range
aChi-square test
bMann-Whitney U test