2003 (Shenoy) | 2016 (Vasu) | p Value | |||||
Implied consent (n) | Explicit consent (n) | Implied consent (%) | Implied consent (n) | Explicit consent (n) | Implied consent (%) | ||
Peripheral intravenous cannula | 46 | 1 | 98 | 66 | 3 | 96 | 0.646 |
Central line insertion (long line) | 43 | 4 | 91 | 45 | 24 | 65 | 0.002* |
Lumbar puncture | 39 | 8 | 83 | 19 | 50 | 28 | <0.0001* |
Suprapubic aspirate | 41 | 5 | 89 | 43 | 26 | 62 | 0.001* |
Intercostal chest drain | 40 | 6 | 87 | 52 | 17 | 75 | 0.157 |
Endotracheal intubation | 44 | 3 | 94 | 58 | 11 | 84 | 0.153 |
Surfactant | 44 | 2 | 96 | 62 | 7 | 90 | 0.312 |
Nitric oxide | 23 | 12 | 66 | 54 | 15 | 78 | 0.236 |
Genetics (DNA CGH array) | 18 | 29 | 38 | 1 | 68 | 1 | <0.0001* |
Blood transfusion | 35 | 12 | 74 | 25 | 44 | 36 | <0.0001* |
*Interventions for which there has been a statistically significant changeĀ (*p<0.05) in professional view between the two surveys are highlighted in green.