| NSIs 2007 (N) | NSIs 2009 (N) | Decrease/increase 2009 (p-value) |
---|---|---|---|
surgical instrument | 102 | 82 | - 19.6% (0.826) |
port needle | 78 | 88 | + 12.8% (0.008) |
stapling system (wound sealing) | 52 | 35 | - 32.7% (0.470) |
blood withdrawal | 50 | 27 | - 46.0% (0.010) |
peripheral venous catheter | 49 | 21 | - 57.1% (0.014) |
hypodermic needle | 47 | 20 | - 57.4% (0.016) |
lancet | 19 | 25 | + 31.6% (0.075) |
others | 51 | 52 | + 2.0% (0.146) |
total | 448 (100%) | 350 (100%) | - 21.9% |